Diode House

The MOC3020 is a high-performance Triac Output Optocoupler designed for reliable electrical isolation between low-voltage control circuits and high-voltage AC loads. It features an infrared emitting diode (GaAs) and a light-activated silicon bilateral switch, which functions like a Triac. Ideal for interfacing electronic controls with power Triacs, this IC efficiently drives resistive and inductive loads up to 115 VAC.

Key Features / Specifications:

• Product Category: Triac & SCR Output Optocouplers
• Output Type: PhotoTriac
• Zero-Crossing Circuit: Without Zero-Crossing Circuit
• Number of Channels: 1
• Isolation Voltage: 5000 Vrms
• Forward Current (If): 50 mA
• Forward Voltage (Vf): 1.2 V
• Power Dissipation (Pd): 300 mW
• Off-state Output Voltage (VDRM): 400 V
• Maximum Continuous Output Current: 100 mA
• Minimum Operating Temperature: -40°C
• Maximum Operating Temperature: +100°C
• Maximum Trigger Current: 30 mA
• Maximum Turn-On Time: 20 µs
• Mounting Style: Through Hole
• Package / Case: DIP-6

Applications:

• Motor Controls
• Solid State Relays (SSR)
• Triggering high-power thyristors
• Household and industrial AC load control equipment

Stock Availability:
Diode House is one of India’s most trusted distributors for industrial electronics components, supplying genuine, brand-certified parts across India. We provide bulk stock for all industrial applications.

Alternate Names / Keywords for Searching:

• MOC3010
• MOC3011
• MOC3012
• MOC3020
• MOC3021
• MOC3022
• Optocoupler Triac Driver
• Photo-Triac IC

Equivalent / Alternate Brands & Part Numbers:

• ON Semiconductor: MOC3010, MOC3011, MOC3012, MOC3020, MOC3021, MOC3022
• Sharp / Toshiba: 4N25 Triac Opto (equivalent series)

Why Choose Diode House:

• All India distribution network
• Genuine, certified products from top brands
• Bulk stock availability for industrial use
• Reliable sourcing for all electronics components

The MOC3021 Optocoupler IC is a high-performance phototransistor-based optoisolator designed to provide complete electrical isolation between input and output circuits. It ensures reliable signal transfer in control systems where safe interfacing between low-voltage and high-voltage sections is critical. The MOC3021 comes in a compact 6-pin DIP package, offering fast switching speed, high noise immunity, and excellent stability across industrial environments.

Uses & Applications:

• Microcontroller and microprocessor interfacing
• AC load control and triac driver circuits
• Switching power supplies and SMPS systems
• Signal isolation in industrial automation equipment
• Consumer and home appliance control systems
• Lighting dimmer circuits and motor control units

Key Benefits:

• Provides galvanic isolation between high and low voltage sections
• Reduces signal distortion and electrical noise interference
• Compact DIP package suitable for PCB and module integration
• High dielectric strength for safe industrial operation
• Ensures long-term reliability and high-performance switching

Technical Specifications:

Alternate Names / Keywords for Searching:

MOC3021 Optocoupler IC
MOC3021M Optoisolator
MOC3022 / MOC3023 / MOC3020 Series
Phototransistor Output Optocoupler
Triac Driver Optocoupler
Opto-Isolator IC
Solid State Relay Driver IC
Isolation IC

Equivalent Brands & Part Numbers:

Distributor Note:

DIODE HOUSE is one of the most trusted and reputed distributors of MOC3021 Optocoupler IC all over India. We supply only genuine, brand-certified components with the best specifications and guaranteed performance.
Available ready stock for immediate dispatch at competitive prices.

We only deal in genuine, brand-certified components from industry leaders such as:

TDK | MAXIM | ST | TI | ON | NXP | AD | ROHM | TOSHIBA | SAMSUNG | VISHAY | MURATA | CDIL | THAKOR (VCRR) | and more.

The FOD817B Onsemi Optocoupler Phototransistor is a high-reliability isolation device designed for industrial, commercial, and consumer electronic applications. Built with an infrared LED input and a high-gain phototransistor output, it ensures safe signal transfer between high voltage and low voltage circuits. Its compact DIP 4 package, high insulation capability, and wide operating temperature range make it a preferred choice for robust electronic designs.

This optocoupler delivers stable performance, excellent CTR consistency, and noise immunity, making it ideal for SMPS, automation, and embedded control systems. Diode House supplies 100 percent genuine and brand-certified Onsemi components with assured quality and availability.

Key Specifications

• Brand: Onsemi
• Part Number: FOD817B
• Package Type: DIP 4 Through Hole
• Output Type: Phototransistor
• Input Type: Infrared LED
• CTR Range: 50 percent to 600 percent depending on subtype
• Isolation Voltage: 5000 Vrms
• Operating Temperature Range: Minus 55 Degree Celsius to Plus 110 Degree Celsius
• Input Forward Current: 50 mA Max
• Collector Emitter Voltage: 80 V Max
• Emitter Collector Voltage: 6 V Max
• Low Input Output Capacitance for improved insulation stability
• High Collector Output Gain suitable for low power circuits
• RoHS compliant device

Applications and Uses

• SMPS feedback isolation
• Microcontroller input output isolation
• Relay driver interface circuits
• Industrial sensors and automation systems
• PLC control modules
• Inverter and UPS circuits
• Consumer electronics isolation
• Signal transmission with protection from electrical noise
• Motor drive circuits
• Power electronics feedback systems

Benefits

• High isolation voltage ensuring excellent safety protection
• Stable and reliable operation in tough industrial environments
• High CTR efficiency allowing low power LED drive
• Compatible DIP 4 through hole footprint for easy mounting
• Excellent noise immunity for sensitive circuits
• Wide temperature range suitable for industrial applications
• Cost effective and widely used in various electronic devices
• 100 percent genuine and brand certified components available from Diode House
• Diode House is one of the most trusted and popular industrial electronic component distributors across India

Why Buy from Diode House

Diode House is the most reliable and popular distributor for all industrial electronic components across India. We supply only genuine and brand certified parts, providing trusted quality for manufacturers, repair centers, RnD labs, and industrial buyers.

Equivalent Parts and Alternate Brands

• Vishay VO617A
• Vishay CNY17 Series
• Everlight EL817 Series
• Lite On LTV817 Series
• Sharp PC817 Series
• Toshiba TLP181
• Renesas PS2501 Series

Alternate Names and Keywords for Searching

• FOD817 Series
• FOD817A
• FOD817B
• FOD817C
• 817 Optocoupler
• 817B Phototransistor Optoisolator
• DIP 4 Optocoupler
• SMPS Feedback Optocoupler
• Industrial Isolation Optocoupler
• Onsemi Optocoupler Series

FOD817A Onsemi Fairchild Optocoupler 4-Pin DIP

The FOD817A is a high-performance optocoupler manufactured by Onsemi / Fairchild. It features a phototransistor output coupled to an infrared LED in a 4-Pin DIP package. Designed for reliable signal isolation, it provides high dielectric strength and excellent noise immunity, making it ideal for industrial and consumer electronic applications.

Key Specifications:

• Manufacturer: Onsemi / Fairchild
• Part Number: FOD817A
• Series: FOD817
• Package Type: 4-Pin DIP (Dual Inline Package)
• Isolation Voltage: 5000 Vrms
• CTR (Current Transfer Ratio): 50% ~ 600%
• Input Forward Voltage: 1.2V (typical)
• Output Type: Phototransistor
• Operating Temperature Range: -55°C to +110°C
• Mounting Type: Through Hole
• RoHS Compliant: Yes

Uses / Applications:

• Switching power supplies
• AC line voltage detection
• Industrial automation & control systems
• Signal isolation in microcontrollers and logic circuits
• Consumer electronics safety isolation
• Motor drive circuits
• Medical instruments and telecom equipment

Benefits:

• Excellent isolation and noise immunity
• High reliability in harsh environments
• Wide CTR range for design flexibility
• Compact 4-pin DIP package for easy PCB mounting
• Ensures safety compliance in high-voltage systems

Stockists & Distributors:

Diode House – One of the most trusted and popular distributors & stockists of industrial electronic components all over India. We deal only in genuine, brand-certified components from leading manufacturers.

Alternate Names / Keywords for Searching:

• FOD817A Optocoupler
• FOD817A Fairchild / Onsemi Optoisolator
• FOD817 Phototransistor Optocoupler
• 817 Optocoupler Series
• PC817 Equivalent Optocoupler

Part Numbers in this Series (FOD817 Family):

• FOD817
• FOD817A
• FOD817B
• FOD817C
• FOD817D

✅ Equivalent Brands & Part Numbers:

• Sharp – PC817 Series (PC817, PC817A, PC817B, PC817C, PC817D)
• Lite-On – LTV-817 Series
• Everlight – EL817 Series
• Toshiba – TLP181, TLP785 Series
• Vishay – VO617A, VO618A

MOC3023M Onsemi Optocoupler – 6-Pin DIP Random-Phase Triac Driver Output

Product Description:
The MOC301XM / MOC302XM series optocouplers from Onsemi are high-performance, optically isolated triac driver devices designed for reliable interfacing between electronic controls and power triacs. These devices feature a GaAs infrared emitting diode and a light-activated silicon bilateral switch, functioning like a triac for precise control of resistive and inductive loads in 115 VAC operations. Their robust design ensures excellent electrical isolation, high peak blocking voltage, and long-term infrared diode stability.

Key Specifications:

• Package Type: 6-Pin DIP
• Output Type: Random-Phase Triac Driver
• Peak Blocking Voltage: MOC301XM – 250 V, MOC302XM – 400 V
• Input Trigger Current: Typically 5 mA
• Insulation Voltage: 4,170 VAC RMS for 1 Minute (UL1577 certified)
• Compliance: DIN EN/IEC60747-5-5, UL1577
• RoHS / Pb-Free: Yes
• Operating Temperature: -40°C to +100°C

Features & Benefits:

• Reliable Isolation: Ensures safe interfacing between low-voltage electronics and high-voltage AC loads.
• High Stability: IR emitting diode designed for low degradation and long-term performance.
• Universal AC Control: Ideal for resistive and inductive load switching.
• Industry-Approved: UL, IEC safety certifications for industrial applications.
• Pb-Free Construction: Environmentally safe and compliant.

Applications:

• Industrial automation and controls
• Solenoid and valve actuation
• Traffic light and signaling systems
• Static AC power switches
• Vending machine controls
• Incandescent lamp dimmers
• Solid-state relays (SSR)
• Motor control circuits
• Lamp ballasts

Alternate Names / Keywords for Searching:
MOC3023M, Onsemi MOC3023M, 6-Pin DIP Optocoupler, Triac Driver IC, Random Phase AC Driver, Solid-State Relay Driver, MOC3010M, MOC3011M, MOC3012M, MOC3020M, MOC3021M, MOC3022M

Brands & Part Numbers Available:

• Onsemi: MOC3010M, MOC3011M, MOC3012M, MOC3020M, MOC3021M, MOC3022M, MOC3023M

Stockiest / Distributor:
Diode House – Most Popular Distributor Across India for all industrial electronic components.

MOC3063M Zero-Cross Triac Driver Optocoupler

Product/Service Description:
The MOC3063M from onsemi is a 6-Pin DIP Zero-Cross Triac Driver Optocoupler designed for high-reliability AC power switching applications. It integrates a GaAs infrared emitting diode optically coupled to a monolithic silicon detector that functions as a zero-voltage-crossing bilateral triac driver. This device enables precise and safe interface between low-voltage logic systems and 115/240 VAC power equipment.

Specifications & Features:

• Package Type: 6-Pin DIP
• Voltage Rating: 600 V Peak
• Zero-Cross Switching: Minimizes conducted and radiated line noise
• Static dv/dt: 600 V/µs (MOC306xM), 1000 V/µs (MOC316xM)
• Safety Approvals: UL1577 (4,170 VACRMS for 1 minute), DIN EN/IEC60747−5−5
• Lead-Free Device: Yes (Pb-Free)
• Operating Applications:
  • Solenoid and Valve Controls
  • Static Power Switches
  • Temperature Control Systems
  • AC Motor Starters and Drives
  • Lighting Control Systems
  • E.M. Contactors
  • Solid-State Relays (SSR)

Uses & Benefits:

• Simplifies logic control of 115/240 VAC power
• Provides isolation between low-voltage control and high-voltage AC loads
• Enhances reliability and reduces electrical noise in sensitive equipment
• Ideal for industrial automation, motor control, and consumer appliance interfaces

Alternate Names / Keywords for Searching:
MOC3063, MOC3063M, MOC306XM, onsemi Optocoupler, Zero-Cross Triac Driver, AC Switch Optoisolator, Solid State Relay Driver

Availability & Distribution:
Diode House is a trusted distributor of industrial electronic components across India. We stock and supply MOC3063M onsemi Optocouplers with guaranteed authenticity and original packaging.

Equivalent Part Numbers / Brands:

• MOC3063M – onsemi
• MOC3063M – ON Semiconductor

6N139M Onsemi High-Speed Optocoupler 1-Channel Low Input Current High Gain

Product Description:
The 6N139M optocoupler from Onsemi is a high-speed, single-channel device featuring a low input current of 0.5 mA and a superior current transfer ratio (CTR) of 2000%. It integrates an AlGaAs LED optically coupled to a high-gain split darlington photodetector, allowing lower output saturation voltage and faster switching than conventional darlington phototransistor optocouplers.

This family of devices ensures reliable performance across 0–70°C, with excellent common-mode rejection (CMR) of 10 kV/µs, making it ideal for high-noise environments. Dual-channel variants include HCPL2730M and HCPL2731M with integrated emitter-base resistors for enhanced thermal stability. All devices are Pb-free and come with international safety approvals.

Key Features / Specifications:

• Input Current: 0.5 mA (Low Input)
• Current Transfer Ratio (CTR): 2000%
• Common Mode Rejection (CMR): 10 kV/µs
• Package: 8-Pin DIP (PDIP)
• Single Channel: 6N138M, 6N139M
• Dual Channel: HCPL2730M, HCPL2731M
• Guaranteed CTR from 0°C to 70°C
• Safety Approvals: UL1577 (5,000 VAC RMS for 1 Minute), DIN EN/IEC60747−5−5
• Pb-Free / RoHS Compliant
• High-Speed Operation with Low Saturation Voltage

Applications:

• Digital Logic Ground Isolation
• Telephone Ring Detectors
• EIA-RS232C Line Receivers
• High Common Mode Noise Line Receivers
• P Bus Isolation
• Current Loop Receivers
• Input interface for MOS, CMOS, LSTTL systems

Stockists & Distributors:
Diode House – Leading distributor across India for industrial electronic components. Trusted supplier for Onsemi, TDK, MAXIM, ST, TI, ON, NXP, AD, ROHM, TOSHIBA, SAMSUNG, VISHAY, MURATA, CDIL, and more.

Alternate Names / Keywords for Searching:
6N138M, 6N139M, HCPL2730M, HCPL2731M, High-Speed Optocoupler, Low Input Current Optocoupler, Split Darlington Optocoupler, 8-Pin DIP Optocoupler, Industrial Electronics Optocoupler

Equivalent / Similar Brands & Part Numbers:

• ONSEMI: 6N138M, 6N139M
• Avago / Broadcom: HCPL-3700 Series
• Vishay: IL300 Series

4N25M Onsemi 6-Pin General Purpose Phototransistor Optocouplers

The 4N25M series optocouplers are high-quality, general-purpose optocouplers designed for reliable signal isolation between high-voltage and low-voltage circuits. Each device consists of a gallium arsenide infrared-emitting diode that drives a silicon phototransistor, housed in a standard 6-pin PDIP package. These optocouplers are widely used in industrial and electronic applications requiring precise signal transfer with high isolation voltage.

Uses, Details, and Benefits:

• Applications:
  • Power Supply Regulators
  • Digital Logic Inputs
  • Microprocessor Inputs
• Key Features:
  • High isolation voltage: 4170 Vrms (UL1577 certified for 1 minute)
  • Reliable NPN phototransistor output
  • Wide operating temperature: -40°C to +100°C
  • Minimum current transfer ratio (CTR): 20% for 4N25M / 10%–100% depending on series
  • Compact 6-pin PDIP package, through-hole mounting
  • Excellent long-term performance and stability
• Advantages:
  • Ensures safe electrical isolation
  • Supports precise digital and analog interfacing
  • Robust for industrial and consumer electronics applications
  • High reliability across temperature and voltage variations

Specifications (Best-in-Class):

• Manufacturer: onsemi / Fairchild
• Product Category: Transistor Output Optocouplers
• Mounting Style: Through Hole
• Package/Case: PDIP-6
• Number of Channels: 1
• Isolation Voltage: 4170 Vrms
• Output Type: NPN Phototransistor
• Current Transfer Ratio (Min): 20%
• Forward Current (If): 60 mA
• Forward Voltage (Vf): 1.5 V
• Maximum Collector-Emitter Voltage: 30 V
• Collector-Emitter Saturation Voltage (Vce(sat)): 500 mV
• Reverse Voltage (Vr): 6 V
• Power Dissipation (Pd): 270 mW
• Operating Temperature: -40°C to +100°C
• Collector-Emitter Breakdown Voltage: 100 V
• Dimensions: 8.89 mm × 6.6 mm × 5.08 mm (L×W×H)
• Packaging: Bulk
• Factory Pack Quantity: 1000 pcs
• Series: 4N25M

Alternate Names / Keywords for Searching:
4N25M, 4N26M, 4N27M, 4N28M, 4N35M, 4N36M, 4N37M, 4N25M_NL

Stockists & Distributors:
DIODE HOUSE – Most popular distributors across India. We supply genuine, brand-certified industrial electronic components.

Equal Brand / Part Numbers:

• Onsemi: 4N25M
• Fairchild: 4N25M

The MOC3052M from ON Semiconductor is a high-performance zero-cross optoisolator triac driver, specifically designed for triggering triacs in AC load switching applications. It offers reliable electrical isolation between low-voltage control circuits and high-voltage AC mains. Integrated zero-cross detection ensures smooth switching, reduces inrush currents, and minimizes electromagnetic interference (EMI). The device is ideal for industrial and consumer electronics requiring precise AC control.

Key Specifications:

• Isolation Voltage: 7500 Vpk
• Output Type: Triac Driver Optocoupler
• Input Trigger Current: 5 mA (maximum)
• Peak Repetitive Voltage (VDRM): 400 V
• Zero-Crossing Circuit: Integrated for reduced noise and smooth AC switching
• Operating Temperature: –40°C to +85°C
• Package Type: DIP-6 (M suffix)

Applications / Uses:

• AC motor control systems
• Lamp dimmers and lighting control
• Solid-state relays (SSR)
• Temperature control systems
• AC switching for industrial automation
• Microcontroller-based AC load control

Benefits & Advantages:

• Provides safe electrical isolation between low-voltage logic and high-voltage AC mains
• Zero-crossing switching reduces inrush currents and EMI
• Reliable solid-state operation with long life and low maintenance
• Compatible with logic-level triggers for microcontroller or PLC-based circuits
• Ensures smooth switching for both resistive and inductive loads

Stockists & Distributors (India):

• Diode House – Trusted distributor for genuine, brand-certified industrial electronic components across India.
  We supply all leading brands and maintain high-quality stock for industrial applications.

Equivalent Brands / Part Numbers:

• Vishay: MOC3052
• Lite-On: MOC3052
• Everlight: MOC3052
• Isocom: MOC3052 Series

Alternate Names / Keywords for Searching:
MOC3052M, MOC3052, Zero-Cross Triac Driver, Optoisolator IC, AC Load Switching IC, Triac Driver Optocoupler, SSR Optocoupler 

6N136 High-Speed Optocoupler IC – DIP-8 Package

The 6N136 High-Speed Optocoupler IC is designed for fast digital isolation between high-speed logic circuits and microcontrollers. It provides high-speed performance, low propagation delay, and excellent noise immunity. Ideal for switching applications in industrial electronics, microprocessor systems, and signal isolation circuits.

Key Features & Specifications:

• Package: DIP-8
• Input-Output Isolation Voltage: 5000 Vrms
• High-Speed Response: Propagation Delay ≤ 250 ns
• Input Current for LED Activation: 5 mA typical
• Collector-Emitter Voltage: 30 V max
• Operating Temperature Range: -55°C to +125°C
• Low Input-Output Capacitance for minimal signal distortion
• Standard high-speed optocoupler for TTL/CMOS logic interfaces

Uses / Applications:

• Digital signal isolation in microcontroller and digital circuits
• Switching power supplies
• High-speed data transmission isolation
• Industrial automation and control systems
• Interface between high-voltage and low-voltage circuits

Why Choose Diode House:
Diode House is the most trusted distributor for industrial electronic components across India. We stock genuine, brand-certified products and ensure the best specifications and quality.

Alternate Names / Keywords for Searching:
6N136, High-Speed Opto-Isolator, Optocoupler IC DIP-8, Opto-Isolator TTL, 6N136 IC

Equivalent / Alternate Brands & Part Numbers:

• Fairchild / ON Semiconductor: 6N136
• Texas Instruments: 6N136
• STMicroelectronics: 6N136
• Vishay: 6N136

Stock Availability: Available at Diode House – your trusted source for industrial electronics components across India.

4N25 SOP-6 Transistor Output Optocoupler

Product Overview:
The 4N25 SOP-6 Transistor Output Optocoupler is a high-performance optoelectronic device engineered to provide reliable electrical isolation between input and output circuits. Combining an infrared emitting diode and a phototransistor within a single SOP-6 package, it ensures accurate signal transmission while protecting sensitive circuits from high-voltage fluctuations. Ideal for industrial, commercial, and automation applications, the 4N25 offers superior performance in a compact, standardized package.

Key Specifications:

• Isolation Voltage: 5300 Vrms – ensures robust protection and safe electrical isolation.
• Input-Output Coupling Capacitance: < 0.5 pF – minimizes noise and crosstalk for precision signal control.
• Logic Compatibility: Interfaces seamlessly with TTL, CMOS, and LSTTL logic families.
• Package: SOP-6 (6-Pin Dual-in-Line) – space-efficient, industry-standard design.
• Operating Temperature Range: -55°C to +100°C – suitable for diverse industrial environments.
• Low Input Current Requirement: Optimized for energy-efficient operation.

Applications:

• Isolation of high-voltage and low-voltage circuits in industrial automation.
• Interfacing microcontrollers, PLCs, and other digital logic circuits with power electronics.
• Noise reduction in sensitive signal lines.
• Switching and protection in industrial control systems.
• Signal transmission in measurement and monitoring equipment.

Advantages:

• High isolation voltage ensures safety and circuit protection.
• Compact SOP-6 form factor for easy PCB integration.
• Reliable and durable performance in harsh industrial conditions.
• Wide logic compatibility for versatile circuit design.
• Minimal input current for low-power applications.

Availability & Distribution:
Diode House is a leading distributor of industrial electronic components across India. We provide genuine, brand-certified 4N25 SOP-6 Optocouplers, ensuring high-quality, ready-to-ship stock for all industrial requirements.

Equivalent Brands & Part Numbers:

• ON Semiconductor: 4N25
• Toshiba: 4N25
• Vishay: 4N25
• Sharp: PC123

About Diode House:
Incepted in 1994, Diode House is a renowned distributor of premium industrial electronics components including Zener Diodes, Resistors, SMD Components, Capacitors, ICs, Trimpots, Transistors, LEDs, Displays, and much more. We are committed to supplying genuine products with best-in-class specifications across India.

6N137 High-Speed Optocoupler – Diode House

The 6N137 High-Speed Optocoupler is a single-channel 10 MBd opto-coupler featuring a high-efficiency input LED coupled with an integrated optical photodiode IC detector. The detector incorporates an open-drain NMOS transistor output, offering significantly lower leakage than open-collector Schottky-clamped transistor outputs. A dedicated enable function on pin 7 allows the detector to be strobed. It is recommended to connect a 0.1 µF bypass capacitor between pin 5 and pin 8 for optimal performance.

Key Specifications:

• Data Rate: 10 MBd (typical)
• Input/Output Isolation: Single-channel optical isolation
• Output Type: Open-drain NMOS transistor
• Supply Voltage: +5V CMOS compatible
• CMR (Common Mode Rejection) Performance: 15 kV/µs, 5 kV/µs, and 1000 V/µs options
• Operating Temperature: -40°C to +85°C (typical)
• Compliance: IEC 60068-2-42 (SO2), IEC 60068-2-43 (H2S)
• Package: DIP-8
• Recommended Bypass Capacitor: 0.1 µF between pin 5 and 8

Features & Benefits:

• High-speed 10 MBd data transfer ensures fast signal isolation.
• Low leakage output improves signal integrity.
• CMOS-compatible input allows direct interfacing with modern microcontrollers and logic circuits.
• Choice of high CMR for demanding industrial environments.
• Pure tin leads for reliable soldering and long-term stability.
• Guaranteed AC and DC performance for industrial-grade reliability.

Applications:

• Microprocessor system interface isolation
• PLC & ATE input/output isolation
• Computer peripheral interface isolation
• Digital fieldbus isolation (CC-Link, DeviceNet, Profibus, SDS)
• High-speed A/D and D/A converters
• AC plasma display panel level shifting
• Multiplexed data transmission
• Digital control power supplies
• Ground loop elimination and noise isolation

Stockists / Distributors in India:
Diode House – Leading distributors for industrial electronic components across India. Available from Mumbai warehouse and all major cities. We provide genuine, brand-certified components with guaranteed quality.

Alternate Names / Keywords for Searching:
6N137, 6N137M, High-Speed Optocoupler, Single-Channel Optocoupler, 10 MBd Optocoupler, CMOS-Compatible Optocoupler

Equivalent Brands / Part Numbers:

• Broadcom / Avago – 6N137
• Texas Instruments – 6N137
• ON Semiconductor – 6N137

The 4N35 Optocoupler Isolation Device is a high-performance optoisolator designed to provide safe and reliable electrical isolation between low-power control circuits and high-voltage switching stages. It consists of an infrared LED and a phototransistor output stage, ensuring stable signal transmission with excellent noise immunity. This device is widely used in industrial, automation, and power electronics applications where protection from high voltage transients is essential.

The 4N35 series is known for its durability, consistent Current Transfer Ratio, fast switching response, and robust construction, making it suitable for professional and industrial-grade electronic designs.

Uses and Applications

• Microcontroller interface isolation
• Isolation in switching power supplies
• Industrial automation signal isolation
• Protection of sensitive circuits from voltage spikes
• Data communication between different voltage domains
• Motor control and drive circuitry
• SMPS and inverter circuits
• Embedded system isolation
• Measurement and data acquisition systems

Key Specifications

• Input LED Forward Current: 10 mA typical
• Output Collector Emitter Voltage: 30 V
• Isolation Voltage: 5000 Vrms
• CTR Current Transfer Ratio: 100 percent typical
• Output Device: Phototransistor
• Input Type: GaAs Infrared LED
• Operating Temperature Range: minus 55 degree C to plus 100 degree C
• Package Type: DIP 6 Pin
• Switching Speed: Fast response for digital isolation
• Insulation Resistance: High for industrial environments

Benefits

• Provides safe and reliable electrical isolation
• High noise immunity ensures stable performance
• Protects microcontrollers and logic circuits
• Fast switching improves system response
• Compact DIP package for easy PCB mounting
• Suitable for industrial harsh environments
• Long operational life and stable CTR

Stockists and Distributors

Diode House is the most popular and trusted distributor of 4N35 Optocouplers across India, supplying only genuine and brand-certified components for all industrial electronics applications.

Alternate Names and Keywords for Searching

4N35 Optoisolator
4N35 Phototransistor Optocoupler
4N35 DIP Optocoupler
4N35 Transistor Output Optocoupler
Industrial Optocoupler 4N35
Optical Isolator 4N35

Equivalent Brands and Part Numbers

Vishay – 4N35
Everlight – EL4N35
LiteOn – LTV4N35
ON Semiconductor – 4N35M
Sharp – PC817 series alternate for similar function
Isocom – H11A1 or IS4N35
Fairchild Legacy – 4N35

All Part Numbers in 4N35 Series

• 4N35
• 4N36
• 4N37
• 4N38
• 4N39
  (All above belong to the 4N3X optocoupler family with different CTR levels.)

CNY172M IC – Phototransistor Optocoupler

Product Description:
The CNY172M IC is a high-performance Phototransistor Optocoupler designed to provide electrical isolation between input and output circuits while enabling signal transmission through light. This device integrates a gallium arsenide infrared LED and a phototransistor in a compact package, ensuring reliable optical coupling and low power consumption. It is widely used in industrial automation, switching circuits, microcontroller interfacing, and protective isolation applications.

Uses, Details & Benefits:

• Electrical Isolation: Provides safe separation between high-voltage and low-voltage circuits.
• Signal Transmission: Ensures accurate signal transfer without electrical interference.
• Compact Design: Suitable for PCB mounting with space-saving 6-pin DIP configuration.
• Fast Response: Ideal for switching applications in digital circuits.
• Low Input Current Requirement: Efficient operation with minimal power consumption.
• High Reliability: Ensures long operational life under industrial conditions.

Technical Specifications:

• Input LED Forward Current (IF): 50 mA max
• Output Collector-Emitter Voltage (VCEO): 30 V
• Collector Current (IC): 50 mA max
• Current Transfer Ratio (CTR): 50% to 600%
• Isolation Voltage (VISO): 5000 Vrms
• Operating Temperature Range: -55°C to +100°C
• Package Type: 6-Pin DIP

Stockists & Distributors:
Available at Diode House – India’s most trusted distributor of industrial electronic components. We supply genuine, brand-certified components across all India.

Equivalent Brands / Part Numbers:

• CNY172M – Vishay / Littelfuse
• 4N25 – ON Semiconductor (equivalent optocoupler)

Alternate Names / Keywords for Searching:
Phototransistor Opto-Isolator, Optical Coupler, LED Phototransistor IC, Isolation IC, CNY172, 6-Pin Optocoupler, Signal Isolator IC.

CNY173M IC-Phototransistor Optocoupler

Product Description:
The CNY173M is a high-performance optocoupler IC featuring a phototransistor output. It provides reliable electrical isolation between input and output circuits, ensuring safe signal transmission in industrial and electronic applications. Designed for superior switching performance, this optocoupler offers low input current requirements and high isolation voltage, making it ideal for interfacing logic circuits with high-voltage systems.

Uses, Applications & Benefits:

• Provides electrical isolation between high voltage and low voltage circuits.
• Suitable for switching power supplies, microprocessor interfaces, industrial automation, and signal isolation.
• Reduces noise and prevents damage to sensitive components.
• Compact and reliable design for long-term industrial usage.
• Ensures low input current, high gain, and fast response time, enhancing circuit performance.

Key Specifications:

• Isolation Voltage (VISO): 5000 Vrms
• Forward Current (IF): 60 mA
• Collector-Emitter Voltage (VCEO): 35 V
• Current Transfer Ratio (CTR): 50% to 600%
• Operating Temperature: -55°C to +100°C
• Package Type: DIP 4-pin
• Response Time: 3 µs typical

Stockists & Distributors:
Available at Diode House, Mumbai – the most trusted distributor across India for all industrial electronic components.

Alternate Names / Keywords for Searching:
CNY173M Optoisolator, CNY173M Phototransistor Coupler, CNY173M IC, CNY173M Isolation Amplifier

Equivalent Brands & Part Numbers:

• Toshiba: TLP173M
• Vishay: ILD173M
• Sharp: PC173M

Professional Note:
DIODE HOUSE stocks only genuine, brand-certified components with the best specifications, catering to distributors, stockists, and industrial electronics suppliers across India.

Cosmo K1010B Transistor Output Optocoupler – 4-Pin DIP Through Hole

The Cosmo K1010B is a high-performance optocoupler featuring a transistor output in a 4-pin DIP (Dual Inline Package) through-hole configuration. Designed for precise signal isolation, it ensures electrical separation between input and output circuits, making it ideal for applications in industrial automation, power supply circuits, and digital interface isolation.

Key Features & Benefits:

• Transistor Output: Provides reliable switching with fast response.
• Input-Output Isolation Voltage: Up to 5,000 Vrms ensures safety and reduces noise interference.
• High CTR (Current Transfer Ratio): Ensures efficient signal transmission.
• Through-Hole DIP Package: Easy PCB mounting and compatibility with standard designs.
• Wide Operating Temperature Range: Suitable for harsh industrial environments.
• Low Input Current Requirement: Saves energy and reduces load on driving circuits.

Typical Applications:

• Microcontroller interface isolation
• Switching power supplies
• Industrial automation systems
• Signal isolation in communication circuits
• Motor control and relay drivers

Technical Specifications:

Stockists & Distributors:
Diode House is one of the most trusted distributors across India for genuine industrial electronic components. We provide the best specifications and authentic products, ensuring reliability for all your electronics projects.

Alternate Names / Keywords for Searching:
Cosmo K1010B, K1010B Optocoupler, Transistor Output Opto-Isolator, 4-Pin DIP Optocoupler

Equivalent / Alternative Brands & Part Numbers:

• Sharp PC817 (4-Pin DIP)
• Toshiba TLP521 (4-Pin DIP)
• Avago/Agilent 4N25 (4-Pin DIP)

Why Choose Diode House:

• All India distributor network
• Genuine brand-certified components
• Complete product support and specifications
• Immediate stock availability

Final Note:
Diode House ensures all our products, including Cosmo K1010B, are sourced from authentic manufacturers with full technical support. Perfect for industrial, automation, and electronic circuit applications.

TLP350 Optocoupler MOSFET & IGBT Driver IC

The TLP350 is a high-speed optocoupler designed for driving MOSFETs and IGBTs in power electronic applications. It provides electrical isolation between input and output while delivering fast switching and precise gate control. This device is ideal for industrial motor drives, inverter systems, SMPS, and other high-performance switching applications.

Key Features & Benefits:

• High-speed operation with 0.25 µs typical propagation delay
• Gate drive voltage up to 18 V
• Isolation voltage of 3750 Vrms between input and output
• Output capable of sourcing and sinking up to 0.35 A peak
• Compatible with MOSFETs and IGBTs
• Low power consumption and compact DIP-8 or SOP-8 package
• Suitable for motor drives, SMPS, inverters, UPS systems, and industrial automation
• Reliable electrical isolation for enhanced safety and circuit protection

Applications:

• Industrial motor control
• Switching power supplies (SMPS)
• Inverter circuits
• UPS systems
• AC/DC conversion circuits
• IGBT/MOSFET gate driving

Package Options:

• DIP-8
• SOP-8

Specifications (Typical):

• Input forward current (If): 10 mA
• CTR (Current Transfer Ratio): 50–300%
• Output voltage (Vceo): 30 V
• Output current (Ic): 0.35 A peak
• Operating temperature: -40°C to +100°C
• Isolation voltage: 3750 Vrms

Stockiest & Distributors:
Diode House is the most popular distributor for this component across India. We provide authentic, brand-certified components with best specifications.

Alternate Names / Keywords:
TLP350 Optoisolator, MOSFET Driver IC, IGBT Gate Driver, TLP350 DIP/SOP, High-Speed Optocoupler

Equivalent Brands & Part Numbers:

• Toshiba TLP350
• Vishay TLP350
• Broadcom (Avago) HCPL-3120 (alternate with similar specifications)

Why Choose Diode House:
We only deal in genuine, brand-certified components from industry leaders such as:
TDK | MAXIM | ST | TI | ON | NXP | AD | ROHM | TOSHIBA | SAMSUNG | VISHAY | MURATA | CDIL | and more.

The FOD3150 is a high-performance, high-speed optocoupler designed for driving power IGBTs and MOSFETs. It provides electrical isolation between low-voltage control circuits and high-voltage power devices. This optocoupler integrates an optimized LED input stage with an efficient output driver for reliable switching performance in industrial environments.

The FOD3150 ensures high noise immunity and fast propagation delay, making it ideal for high-frequency motor control, inverter circuits, power converters, and switch-mode power supplies.

Key Features & Specifications:

• Type: High-Speed Gate Driver Optocoupler
• Package Type: DIP-8
• Number of Channels: 1 Channel
• Isolation Voltage: 5000 Vrms (1 Minute)
• Output Type: Open Collector, Totem-Pole Output
• Input Type: Infrared LED
• Propagation Delay (Typical): 0.5 µs
• Rise / Fall Time: 0.3 µs (typical)
• Output Current: ±2.0A Peak
• Operating Temperature Range: -40°C to +100°C
• Supply Voltage Range: 15V – 30V
• Common Mode Transient Immunity (CMTI): 25 kV/µs (minimum)
• Mounting Type: Through Hole (DIP-8)

Applications / Uses:

• IGBT and MOSFET Gate Drivers
• Motor Control Circuits
• Power Inverters and Converters
• Switch-Mode Power Supplies (SMPS)
• Industrial Control Systems
• Renewable Energy Systems
• High-Voltage Isolation Circuits

Equivalent / Alternate Part Numbers:

• A3150 – Avago / Broadcom
• FOD3150R2 – ON Semiconductor
• HCPL-3150 – Avago Technologies
• VO3150 – Vishay
• HCNW3150 – Broadcom
• ACPL-3150 – Broadcom

Brands Available:

ON Semiconductor | Avago | Broadcom | Vishay | Fairchild | Lite-On

Why Buy from Diode House:

Diode House is one of the most trusted distributors and stockists of industrial electronic components across India.
We only deal in genuine, brand-certified components ensuring consistent quality, reliability, and performance for all industrial applications.

Additional Keywords for Searching:

High Speed Optocoupler, Gate Driver IC, FOD3150 Optoisolator, A3150 Avago, HCPL3150, IGBT Driver Optocoupler, DIP8 Optocoupler, Power MOSFET Driver, Industrial Isolation IC, ON Semiconductor FOD3150

Available Brands with Part Numbers:

• ON Semiconductor: FOD3150, FOD3150R2
• Avago / Broadcom: A3150, HCPL-3150, ACPL-3150, HCNW3150
• Vishay: VO3150

The CPL640 is a high-performance optocoupler device designed for isolating electrical signals between two circuits while allowing reliable data transmission. It combines an infrared LED emitter and a silicon phototransistor detector in a single compact package. Known for its high insulation voltage and fast switching capability, CPL640 provides excellent performance in both analog and digital signal isolation applications.

This component is widely used for signal interfacing, power supply regulation, inverter control, and microcontroller-based circuit protection. It ensures safe and noise-free communication between high-voltage and low-voltage stages.

Uses, Details & Benefits:

• Applications: SMPS, Inverter circuits, Motor drives, Microcontroller I/O isolation, Signal switching, Relay drive circuits
• Isolation Voltage: 5000 Vrms (Typical)
• Collector-Emitter Voltage (VCEO): 70V
• Collector Current (IC): 50mA
• CTR (Current Transfer Ratio): 50% – 600% (depending on model variant)
• Input Forward Current (IF): 50mA
• Response Time: Fast switching speed for signal transmission
• Operating Temperature: –55°C to +110°C
• Package Type: DIP-4 / SMD available
• Features: High reliability, low leakage, and long operational life

Benefits:

• Provides galvanic isolation between control and output sections
• Ensures safety and noise immunity in sensitive circuits
• Compatible with both digital and analog interfaces
• Compact design ideal for PCB mounting
• Durable construction ensures longevity under industrial conditions

Alternate Names / Keywords for Searching:

CPL640 | CPL-640 | Optocoupler | Phototransistor IC | Isolation Amplifier | Signal Coupler | Optoisolator | LED Phototransistor | Logic Signal Isolator | Power Driver Isolator

Equivalent / Alternate Part Numbers:

Why Buy from Diode House:

DIODE HOUSE is one of the most trusted and popular distributors across India, dealing only in genuine, brand-certified electronic components.
We supply industrial-grade semiconductors, ICs, transistors, diodes, optocouplers, and passive components to manufacturers, OEMs, and R&D sectors across the nation.

We Only Deal in Genuine Components from Brands:

TDK | MAXIM | ST | TI | ON | NXP | AD | ROHM | TOSHIBA | SAMSUNG | VISHAY | MURATA | CDIL | THAKOR (VCRR) | and more.

MOC3083M Optocoupler Zero Cross Triac Driver Onsemi

The MOC3083M Zero Cross Triac Driver Optocoupler from onsemi is a high-performance 6 pin DIP optocoupler designed for safe and reliable AC load switching. It features an internal GaAs infrared LED coupled with a high-quality bilateral triac driver output. This device provides zero voltage turn ON, which helps reduce electrical noise, improves EMI performance, and ensures smooth AC switching in industrial and commercial systems.

Built with excellent dv dt immunity and high isolation voltage, the MOC3083M is widely used in AC motor control, SSR circuits, industrial drives, automation systems, and microcontroller based power switching.

Key Features and Benefits

• Zero cross switching for low EMI and noise reduction
• High isolation voltage up to 5250 Vrms
• Peak blocking voltage 800 V for robust AC operation
• 5 mA maximum trigger current for easy microcontroller interfacing
• Strong dv dt immunity for reliable switching in noisy environments
• Compact 6 pin PDIP package suitable for through hole PCB mounting
• Long operational life and stable performance
• RoHS and Pb Free compliant
• Approved to UL1577 and DIN standards for safety

Technical Specifications

• Type Zero Cross Triac Driver Optocoupler
• Brand Onsemi
• Package PDIP 6 Pin Through Hole
• Isolation Voltage 5250 Vrms
• Peak Blocking Voltage 800 V
• Trigger Current Max 5 mA
• Forward Voltage 1.3 V Typical
• Forward Current Max 60 mA
• Static dv dt 1500 V per s Typical and 600 V per s Guaranteed
• Operating Temperature Minus 40 C to Plus 85 C
• Power Dissipation Max 250 mW
• Dimensions 8.89 mm x 6.6 mm x 3.53 mm
• Weight 855 mg

Applications

• Solid State Relay circuits
• Industrial automation control
• Lighting control and HVAC systems
• AC motor control and soft start systems
• Temperature control and thermostat systems
• Solenoid and valve control
• Home appliances and power switching units
• EMI sensitive AC switching applications

Why Buy from Diode House

DIODE HOUSE is India most popular and trusted distributor and stockist for all industrial electronic components.
We supply only genuine and brand certified components from world leading manufacturers such as
TDK, MAXIM, ST, TI, ON, NXP, AD, ROHM, TOSHIBA, SAMSUNG, VISHAY, MURATA, CDIL and many more.

Equivalent Parts

• MOC3061M
• MOC3062M
• MOC3063M
• TLP3063 Toshiba
• H11AA1 Vishay

Alternate Names and Keywords for Searching

MOC3083
MOC3083M Optocoupler
MOC3083 Zero Cross
Triac Driver Optocoupler
Onsemi Triac Driver
Zero Cross Optocoupler
AC Switch Optocoupler
Logic to AC Interface Optocoupler

Complete Part Number Series List

• MOC3081
• MOC3081M
• MOC3082
• MOC3082M
• MOC3083
• MOC3083M

The EL357NTA G Everlight Phototransistor Optocoupler is a high-performance signal-isolation device designed for industrial, commercial, and consumer electronic applications. It provides excellent galvanic isolation between input and output circuits using a high-efficiency infrared LED and a reliable NPN silicon phototransistor. Built in a compact DIP 4 through hole package, this device ensures stable Current Transfer Ratio, long service life, and outstanding insulation resistance for noise sensitive and high voltage applications.

Key Features and Specifications:

• Package Type: DIP 4 through hole
• High Isolation Voltage: 5000 Vrms minimum
• CTR Range: 50 percent to 600 percent at IF 5 mA and VCE 5 V
• Collector Emitter Voltage VCEO: 80 V
• Input Forward Voltage VF: 1.2 V typical
• Low Input Output Capacitance: Excellent noise immunity
• High Dielectric Strength: Suitable for wide voltage separation
• Wide Operating Temperature Range: minus 55 degree C to plus 110 degree C
• RoHS and Halogen Free Compliance
• Stable CTR over Temperature
• Reliable Infrared LED and Phototransistor Structure

Applications and Uses:

• SMPS feedback regulation and secondary control
• Industrial automation and process control systems
• Microcontroller and microprocessor IO signal isolation
• Home appliances and power supply PCBs
• Inverter and UPS signal separation
• AC mains detection and digital logic interfacing
• Safety isolation in instrumentation circuits
• Communication equipment and relay driving protection

Benefits:

• Provides reliable electrical isolation for safety and performance
• High CTR stability ensures consistent operation in critical circuits
• Compact DIP 4 format ideal for space limited PCB layouts
• Low power operation suitable for energy efficient designs
• Ensures long term durability even in harsh environments
• Supports high noise immunity, preventing false triggering
• Designed for professional, industrial grade performance

About Diode House (India):

Diode House is one of the most trusted and popular distributors of industrial electronic components across India. We supply only genuine, brand certified components ensuring superior performance for production, RnD, and OEM requirements.

We are Stockists and Distributors for:
Everlight | Vishay | Toshiba | Onsemi | Lite On | Sharp | Isocom | Renesas
TDK | Maxim | ST | TI | ON | NXP | AD | ROHM | Samsung | Murata | CDIL and more

Equivalent or Alternate Optocoupler Part Numbers:

• PC817 Series Sharp Everlight
• LTV817 Series Lite On
• TLP521 Series Toshiba
• 4N25 Series Vishay Onsemi
• 4N35 Series Vishay Onsemi

Alternate Names and Keywords for Searching:

EL357N Everlight Optocoupler
EL357N Phototransistor Optocoupler
EL357N DIP 4 Optocoupler
Everlight DIP Isolation Optocoupler
Industrial Signal Isolation Phototransistor
High CTR Optocoupler Everlight
DIP Through Hole Optocoupler Module

All Part Numbers in the EL357N Series (Search Keywords):

EL357NTA G
EL357NTA
EL357NSA
EL357NGA
EL357N4A
EL357N1A
EL357N2A

(Series availability may vary by brand packaging, tape, reel, bulk, or through hole.)

MOC3063SR2M Zero-Cross Triac Driver Optocoupler

Product/Service Description:
The MOC3063SR2M by onsemi is a 6-Pin DIP Zero-Cross Triac Driver Optocoupler designed to interface low-voltage logic systems with high-voltage AC loads. It features a GaAs infrared LED optically coupled to a monolithic silicon detector, performing zero voltage crossing for a bilateral triac driver. This ensures reliable switching of 115/240 VAC equipment while minimizing conducted and radiated noise.

Uses, Details & Benefits:

• Ideal for solid-state relays, industrial controls, motors, solenoids, and consumer appliances.
• Zero voltage crossing reduces line noise and enhances system reliability.
• High blocking voltage: 600 V peak.
• Superior static dv/dt capability:
  • 600 V/μs (MOC306xM series)
  • 1000 V/μs (MOC316xM series)
• Safety and regulatory approvals: UL1577, DIN EN/IEC60747-5-5.
• Pb-Free device, environmentally compliant.

Applications:

• Solenoid and valve controls
• Static power switches
• Temperature and lighting controls
• AC motor starters and drives
• E.M. contactors
• Solid-state relays

Professional Highlights:

• Simplifies logic control of high-voltage AC lines
• Reliable zero-crossing switching reduces EMI
• Compatible with 115/240 VAC lines
• Provides long-term stability and robust operation

Distributor Information:
DIODE HOUSE is the most trusted distributor across India for genuine industrial electronics components. We stock MOC3063SR2M and related triac driver optocouplers with complete specifications.

Alternate Names / Keywords for Searching:

• MOC3063SR2M Opto-isolator
• Zero-Cross Triac Driver IC
• 6-Pin DIP Optocoupler
• AC Triac Driver Module
• Solid-State Relay Driver

Equivalent / Related Part Numbers:

• MOC3061M, MOC3062M, MOC3063M, MOC3162M, MOC3163M

Specifications (Key Points):

• Package: 6-Pin DIP
• Voltage Rating: 600 V Peak
• dv/dt Rating: 600–1000 V/μs
• Isolation Voltage: 4170 VAC RMS for 1 minute
• Applications: Industrial AC load switching, motor and lighting controls

The EL817(B) Optocoupler from Everlight is a high-performance 4-pin DIP phototransistor photocoupler designed for reliable electrical isolation and signal transfer between circuits of different potentials. It combines an infrared LED input with a phototransistor output in a compact, small-outline package, ensuring excellent performance in industrial and consumer electronics applications. This device is RoHS and REACH compliant, halogen-free, and UL, cUL, VDE, SEMKO, NEMKO, DEMKO, FIMKO, and CQC certified, making it suitable for global applications.

Key Specifications:

• Package Type: 4-Pin DIP (Through-Hole), also available in SMD variant
• Current Transfer Ratio (CTR): 50–600% (IF = 5mA, VCE = 5V)
• Isolation Voltage: 5000 Vrms between input and output
• Creepage Distance: >7.62 mm
• Operating Temperature: -40°C to +110°C
• Leadframe: Copper only (Halogen-Free: Br < 900 ppm, Cl < 900 ppm, Br+Cl < 1500 ppm)
• Compliance: RoHS, EU REACH
• Certifications: UL & cUL (E214129), VDE (132249), SEMKO, NEMKO, DEMKO, FIMKO, CQC

Pin Configuration:

1. Anode
2. Cathode
3. Emitter
4. Collector

Applications / Uses:

• Signal isolation and transmission between circuits of different potentials
• Programmable controllers
• System appliances and measuring instruments
• Telecommunication equipment
• Home appliances such as fan heaters and control systems

Advantages / Benefits:

• High isolation voltage ensures safe operation between high and low voltage circuits
• Wide CTR range provides flexible amplification options
• Compact DIP package allows easy mounting and circuit integration
• Globally certified for industrial and consumer-grade applications
• High-temperature operation suitable for harsh industrial environments

Stockists / Distributors in India:
Diode House – Most trusted distributors for industrial electronics components across India. We supply genuine, brand-certified components including Everlight, TDK, Maxim, ST, TI, ON, NXP, AD, ROHM, Toshiba, Samsung, Vishay, Murata, CDIL, and more.

Alternate Part Numbers / Keywords for Searching:
EL817, EL817C, EL817(B), Everlight Optocoupler, 4-Pin DIP Optocoupler, Phototransistor Coupler, High Isolation Optocoupler

Equivalent / Similar Brands & Part Numbers:

• Toshiba: TLP521-1
• Vishay: VO617A
• Sharp: PC817

MCT2E Onsemi Optocoupler – High-Performance Phototransistor Isolation Device

The MCT2E Onsemi Optocoupler is a high-reliability phototransistor-based isolation component designed for safe and accurate signal transfer between high-voltage and low-voltage sections of a circuit. It houses a gallium-arsenide infrared LED and a sensitive NPN phototransistor inside a compact DIP6 package, ensuring strong electrical isolation, high CTR performance, and excellent long-term stability. This optocoupler is ideal for feedback control, isolation, switching, sensing, and precision interface applications used across industrial, commercial, and consumer electronics.

Diode House is among the most trusted stockists and distributors of industrial electronic components across India, supplying only 100 percent genuine and brand certified components with ready stock availability.

Key Features and Specifications

• Manufacturer: Onsemi
• Type: Phototransistor Optocoupler
• Package: DIP6
• Isolation Voltage: 5000 Vrms typical
• CTR Range: 50 percent to 600 percent at IF 10mA VCE 5V
• Forward Voltage VF: 1 point 2V typical
• Collector Emitter Voltage VCEO: 30V
• Collector Current IC: up to 150mA
• Operating Temperature: minus 55 degree to plus 100 degree
• High noise immunity for harsh industrial environments
• Fast response ideal for signal switching
• UL recognized industry standard configuration

Uses and Applications

• SMPS feedback and voltage regulation
• Microcontroller and processor input output isolation
• AC mains detection and monitoring circuits
• High voltage signal communication
• Power supply protection circuits
• Industrial automation control boards
• Consumer and household appliance control modules
• Instrumentation and measurement devices

Benefits

• Provides complete protection with strong electrical isolation
• Stable CTR for consistent circuit performance
• Compact DIP6 footprint easy for PCB mounting
• Reliable operation under industrial temperature and noise conditions
• Long life optical coupling for safety critical applications
• Compatible with multiple equivalent industry standard devices

Equivalent Brands and Part Numbers

• Vishay: MCT2E
• LiteOn: LTV817, LTV357T
• Everlight: EL817, EL357N
• Toshiba: TLP5211, TLP181
• Sharp: PC817

(Always match CTR group and package before replacement.)

Alternate Names / Keywords for Searching

MCT2E Optocoupler
Onsemi Phototransistor Coupler
DIP6 Optocoupler
MCT Series Optocoupler
Phototransistor Isolation Device
Optical Coupler DIP6
Industrial Isolation Optocoupler
SMPS Feedback Optocoupler
MCT2E Series Equivalent Numbers
817 Optocoupler Series

The TLP250H(F) Toshiba Optocoupler Gate Driver IC is a high-speed, high-isolation photocoupler designed for efficient driving of MOSFETs and IGBTs in high-voltage power systems. Its strong noise immunity, fast switching capability, and wide supply range make it ideal for industrial, inverter, motor control and SMPS applications.
Engineered for robust performance, this driver provides 5000Vrms isolation, ensuring safe and reliable operation in harsh conditions.

Key Specifications

• Type: High-speed Optocoupler / Gate Driver
• Input: Infrared LED
• Output: High-current Gate Driver (Push-Pull)
• Peak Output Current: ±1.5A (typical)
• Supply Voltage (VCC): 10V – 30V
• Propagation Delay: ~500ns (typ.)
• Isolation Voltage: 5000Vrms (min.)
• Common Mode Transient Immunity (CMTI): > 15 kV/µs
• Operating Temperature: –40°C to +100°C
• Package: DIP-8 / DIP-8(F) Extended Creepage
• Switching Type: High-speed, low jitter

Product Uses / Applications

• IGBT & MOSFET Gate Driving
• DC/AC Inverters & Motor Drives
• UPS Systems
• SMPS Power Supplies
• Solar Inverters & Battery Chargers
• Industrial Automation
• High-Voltage Switching Circuits

Benefits

• Excellent galvanic isolation for safe high-voltage operation
• Fast and efficient signal transfer improves system performance
• Wide VCC range allows flexible power stage design
• High CMTI ensures reliability in noisy environments
• Toshiba-quality long operational life
• Suitable for both industrial and commercial power electronics

Equivalent / Alternate Brand Part Numbers

Toshiba Equivalent Series:

• TLP250
• TLP250H
• TLP251H
• TLP701H (high-CMTI variant)
• TLP152

Vishay:

• VO3120
• VO3150

Avago / Broadcom:

• HCPL-3120
• ACPL-312T
• HCPL-3180

ON Semiconductor / Onsemi:

• NCP5104
• NCP5106
• FOD3120 (Fairchild/Onsemi)

Everlight:

• EL7156
• EL7212 (driver class alternative)

Renesas / NEC:

• PS9321
• PS2561 series (isolation class only)

Alternate Names / Keywords for Searching

TLP250H, TLP250HF, Toshiba Gate Driver, IGBT Driver IC, MOSFET Gate Driver IC, Opto Gate Driver 8-Pin, High-Speed Optocoupler Driver, TLP250 Series ICs, Toshiba Optocoupler Driver, 5000Vrms Isolation Driver, Industrial Gate Driver, Photocoupler Gate Driver, Power Electronics Driver IC.

Why Buy from Diode House?

Diode House is one of India’s most popular and trusted stockists & distributors for industrial electronic components.
We supply 100% genuine, brand-certified products from global manufacturers ensuring reliability, consistency, and long-term performance for all applications. 

The 6N137S DM is a high-speed optocoupler / optoisolator from Onsemi, designed for reliable electrical isolation between high-speed digital circuits and microcontrollers, logic circuits, or industrial systems. It features a high gain, low input current, and fast response time, making it ideal for digital logic isolation, signal isolation, and high-speed data communication applications.

Key Features & Specifications:

• Manufacturer: Onsemi
• Type: High-Speed Optocoupler / Optoisolator
• Package: 6-Pin DIP (Dual Inline Package)
• Input-Output Isolation Voltage: 5000 Vrms
• Propagation Delay: Typical 10 ns (min 7 ns, max 25 ns)
• CTR (Current Transfer Ratio): 20% – 50%
• Supply Voltage (VCC): 4.5V – 5.5V
• Operating Temperature: -40°C to +85°C
• Logic Compatibility: TTL, CMOS
• Number of Channels: 1 Channel
• RoHS Compliant: Yes

Applications & Benefits:

• High-speed digital communication isolation
• Microcontroller and logic circuit isolation
• Industrial automation & signal conditioning
• Protects sensitive circuits from voltage spikes and noise
• Ensures high reliability and long operational life

Stockists & Distributors:
Diode House – India’s most popular distributor for industrial electronics components, providing genuine, brand-certified products. We stock Onsemi 6N137S DM optocouplers with ready availability across Mumbai and all over India.

Equivalent Brands / Part Numbers:

• Fairchild / Vishay: 6N137
• Toshiba: TLP137
• Avago / Broadcom: ACPL-217-500E
• Texas Instruments: ISO137

Alternate Names / Keywords for Searching:
6N137S, 6N137, 6N137S-DM, High-Speed Optocoupler, Optoisolator, TTL Compatible Optocoupler, Industrial Optocoupler, Logic Isolation Optocoupler

6N139SDM High Speed Optocoupler

The 6N139SDM High Speed Optocoupler from Onsemi is a high isolation, high performance optoelectronic device designed to safely interface low voltage control circuits with high voltage switching environments. It features a high efficiency infrared LED coupled with a sensitive phototransistor output, ensuring fast signal transfer, excellent noise immunity, and reliable long term operation. Its compact SMD package is ideal for modern space constrained PCB designs.

Uses Details Benefits and Best Specifications

Key Features and Specifications

• Type High Speed Optocoupler
• Input Side High efficiency infrared LED
• Output Side High gain phototransistor
• Data Rate Up to 1 MBd
• Isolation Voltage 3750 Vrms
• CTR Range 20 percent to 300 percent at IF 1 mA
• Low Input Current Suitable for low power circuits
• Package Type SMD
• Operating Temperature Minus 55 degree C to Plus 100 degree C
• Compliance RoHS compliant UL recognized
• High CMR Capability Ensures immunity from electrical noise

Applications

• Microcontroller and microprocessor interfaces
• SMPS feedback and regulation circuits
• High noise industrial communication
• Inverters UPS power electronics
• Signal isolation in control systems
• Data transmission with high isolation requirements

Benefits

• Provides excellent protection for sensitive control electronics
• Ensures stable performance in harsh and noisy environments
• Supports high speed digital communication
• Compact SMD design suited for automated PCB assembly
• Very low operating current reduces system power consumption

Why Buy from Diode House

• Most trusted stockist and distributor of genuine Onsemi components across India
• Ready stock for bulk and regular buyers
• All components are brand certified and 100 percent original
• Fast dispatch trusted service and competitive pricing
• Diode House is among the most popular distributors for all industrial electronic components across India

Equivalent Brand Options and Similar Part Numbers

• Vishay 6N139S
• Everlight EL6N139 Series
• Lite On LTV6N139
• Sharp PC9L Series High Speed Optocouplers
• Toshiba TLP5214 Series Comparable Isolation Optocouplers

Alternate Names and Keywords for Searching

6N139 Series Optocoupler
High Speed Isolation Coupler
Onsemi 6N139 Device
Low Input Current Optocoupler
High CMR Optocoupler
Digital Signal Isolation Device
Industrial Control Optocoupler

All Part Numbers in this Series

• 6N139
• 6N139S
• 6N139SD
• 6N139SDM
• EL6N139 Series Everlight
• LTV6N139 Series Lite On 

The MOC3041M onsemi Zero Cross Triac Driver Optocoupler is a high-performance 6 Pin DIP optocoupler designed for safe and reliable AC load switching. It integrates a GaAs infrared LED and a monolithic silicon detector to drive a triac at zero-voltage crossing, ensuring minimal EMI noise and smooth switching.
This device is widely used in industrial automation, home appliances, lighting systems, motor drives, HVAC controls, and solid state relays.
Diode House supplies genuine onsemi optocouplers with guaranteed quality and high reliability.

Key Features

• Zero Voltage Crossing for low EMI and smooth AC switching
• 6 Pin DIP package for easy mounting
• Designed for 115 VAC and 230 VAC AC loads
• High dv dt immunity: 2000 V per second typical
• Guaranteed dv dt: 1000 V per second
• High isolation voltage: 4170 VAC RMS for 1 minute
• Peak Blocking Voltage:
  • 250 V for MOC303x series
  • 400 V for MOC304x series
• Optically isolated triac driver output
• Fast switching and long operational life
• RoHS compliant Pb-Free device
• UL and IEC safety certified

Applications

• Lighting dimmers and lighting control modules
• Solenoid and valve control systems
• Industrial automation and process control
• AC motor drives and fan speed control
• Temperature controllers and thermostats
• Solid state relay systems
• Static AC power switches
• Home appliances and consumer electronics
• Contactors and AC motor starters

Technical Specifications

Why Buy From Diode House

Diode House is one of India's most trusted distributors for industrial electronic components, supplying only 100 percent genuine brand certified products across the country.
We maintain ready stock and fast delivery for major optocoupler series from onsemi, Vishay, LiteOn, Sharp, Everlight and more.

Available Series and Part Numbers

MOC303x Series (250 V Peak)

• MOC3031M
• MOC3032M
• MOC3033M

MOC304x Series (400 V Peak)

• MOC3041M
• MOC3042M
• MOC3043M

Alternate Names and Useful Keywords

MOC3041M Optocoupler
MOC3041M Triac Driver
MOC3041M Zero Cross Driver
MOC3041M onsemi DIP Optocoupler
AC Switching Optocoupler
Triac Output Optocoupler
Zero Cross Optocoupler
6 Pin DIP Optocoupler
onsemi MOC3041M Series

Equivalent Brands (Same Category Triac Driver Optocouplers)

• Vishay VO3041
• LiteOn LTV3041
• Everlight EL3041
• Sharp PC3041 series
• Isocom MOC3041

The CNY171M is a high-performance NPN phototransistor output optocoupler from onsemi, designed for electrical isolation between input and output circuits. It belongs to the industry-proven CNY17 series, offering stable CTR, high insulation voltage, and reliable long-term performance.
This device integrates a Gallium Arsenide IR LED optically coupled with an NPN phototransistor in a 6 Pin DIP package, ensuring excellent signal transfer and noise immunity.

Diode House is one of the most trusted stockists and distributors across India, supplying only genuine and brand certified industrial electronic components.

Key Features

• High Collector Emitter Breakdown Voltage BVCEO 70 V minimum
• Stable and closely matched Current Transfer Ratio CTR
• Available CTR groups for precision applications
• Very low coupling capacitance ensures high noise immunity
  (No chip to pin 6 base connection in FXM versions)
• High isolation voltage UL1577 4170 VAC RMS for 1 minute
• Certified per DIN EN IEC 60747 5 5 (850 V peak working insulation)
• Through Hole mounting style PDIP 6 package
• Long service life and industrial grade reliability

Applications

• Switched Mode Power Supply SMPS
• Power supply regulators
• Digital logic inputs
• Microcontroller and microprocessor input isolation
• Appliance sensor systems
• PLC and industrial control systems
• Signal isolation in noisy environments

Technical Specifications

• Brand: onsemi
• Series: CNY171M
• Package: PDIP 6 Through Hole
• Channels: 1 channel
• Output Type: NPN phototransistor
• Isolation Voltage: 4170 Vrms
• CTR Min: 40 percent
• CTR Max: 80 percent
• Forward Current If: 60 mA
• Forward Voltage Vf: 1 point 65 V
• Collector Emitter Voltage Vceo Max: 70 V
• Collector Current Ic Max: 50 mA
• Collector Emitter Saturation Voltage: 400 mV
• Rise Time: 4 micro second
• Fall Time: 20 micro second
• Reverse Voltage: 6 V
• Power Dissipation Pd: 270 mW
• Operating Temperature: minus 40 C to plus 100 C
• Dimensions:
  Height 2 point 54 mm
  Length 8 point 89 mm
  Width 6 point 6 mm
• Unit Weight: 400 mg
• Packaging: Bulk
• Factory Pack Quantity: 1000

Benefits

• High isolation ensures enhanced system safety
• Stable CTR and low noise make it ideal for precision electronics
• Suitable for industrial and commercial grade designs
• Long term reliability from onsemi brand
• Easy soldering and PCB mounting with DIP 6 package

Alternate Names

• CNY17 optocoupler
• CNY171 optocoupler
• CNY171M optocoupler
• CNY17 series transistor optocoupler
• MOC8106M optocoupler
• High isolation phototransistor optocoupler
• 6 Pin DIP optocoupler

All Part Numbers in This Series

• CNY17 1
• CNY17 2
• CNY17 3
• CNY17 4
• CNY171M
• CNY172M
• CNY173M
• CNY174M
• CNY17XM
• CNY17FXM
• MOC8106M

Equivalent Brands and Part Numbers

• Vishay – CNY17 1 CNY17 2 CNY17 3 CNY17 4
• LiteOn – LTV817 LTV827 LTV847
• Everlight – EL817 series
• Sharp – PC817 series
• onsemi Fairchild – MOC8106M CNY17 series

4N33M Onsemi Optocoupler – High-Isolation Phototransistor Output

The 4N33M Optocoupler by Onsemi is a high-quality phototransistor output optoisolator designed for industrial, automation, and electronic applications requiring reliable electrical isolation. It consists of a gallium arsenide infrared LED optically coupled to a silicon NPN phototransistor, offering fast switching, high insulation, and consistent performance under demanding conditions.

Key Specifications & Features:

• Isolation Voltage: Up to 5000 Vrms, ensuring high safety between input and output circuits
• Current Transfer Ratio (CTR): Stable and reliable performance across operating conditions
• Package Type: DIP-6 (Through-hole mounting)
• Operating Temperature Range: Suitable for harsh environments, -55°C to +100°C
• Input Forward Voltage (VF): Typical 1.2V at IF = 10 mA
• Output Collector-Emitter Voltage (VCEO): 30V
• Output Collector Current (IC): Max 50 mA
• Rise/Fall Time: Fast switching for industrial signal applications

Applications / Uses:

• Isolation between high-voltage and low-voltage circuits
• Microcontroller and logic circuit interface protection
• Switching power supplies
• Industrial automation and control equipment
• Motor drive feedback systems and signal transmission

Why Choose This Component from Diode House:

• High reliability with robust, durable design
• Low leakage and high insulation resistance
• Compatible with standard logic families
• Cost-effective and easy to integrate
• Supplied only as genuine, brand-certified components
• Diode House is one of India’s most trusted distributors for industrial electronic components, serving customers across all cities in India

Equivalent / Similar Optocoupler Part Numbers (All Brands):

• 4N32 – Onsemi / Vishay
• 4N33 – Onsemi / Vishay
• 4N34 – Onsemi
• PC817 – Sharp / Everlight
• MOC3021 – Onsemi
• 6N136 – Vishay / Avago

Alternate Keywords / Searching Terms:
4N33, 4N33M, Onsemi Optocoupler, Phototransistor Optoisolator, DIP-6 Optocoupler, Industrial Optocoupler, Logic Isolation Device

Stockiest / Distributor:
Diode House – Trusted Industrial Electronics Distributor Across India

MCT6 Onsemi 2-Channel Transistor Output Optocoupler PDIP-8

The MCT6 Optocoupler from Onsemi / Fairchild is a high-performance transistor output optocoupler designed for electrical isolation between high-voltage and low-voltage circuits. Housed in a compact PDIP-8 package, this 2-channel device offers reliable signal transfer with excellent speed and isolation properties. It is suitable for industrial, consumer, and embedded electronics applications requiring robust optical isolation.

Key Features & Benefits:

• 2-Channel NPN Phototransistor Output: Allows dual-channel signal isolation in a single device.
• High Isolation Voltage: Up to 5000 Vrms, ensuring safe operation in high-voltage applications.
• Fast Switching: Rise and fall times of 2.4 µs provide reliable performance in digital and analog circuits.
• Wide Operating Temperature: From -55°C to +100°C, suitable for harsh industrial environments.
• Low Saturation Voltage: Maximum Vce(sat) = 400 mV, ensures efficient signal transfer.
• Compact PDIP-8 Package: Easy through-hole mounting for PCB applications.
• High Collector Current Rating: Up to 30 mA, compatible with a variety of interface circuits.
• RoHS Compliant: Environmentally friendly and safe for modern electronics assembly.

Applications:

• Industrial automation and control systems
• Microprocessor and microcontroller interface isolation
• Power supply feedback loops
• Signal isolation in switching circuits
• Relay driving circuits
• Instrumentation and measurement equipment

Stockists & Distributors in India:
Diode House – Leading distributor of industrial electronic components across India. We supply genuine, brand-certified Onsemi components with complete technical support.

Alternate Names / Keywords for Searching:
MCT6, MCT6_NL, Onsemi MCT6, Fairchild MCT6, 2-channel optocoupler, transistor output optocoupler, PDIP-8 optocoupler, industrial isolation optocoupler

Equivalent Brands / Part Numbers:

• MCT6_NL (Fairchild / Onsemi)
• Compatible with similar transistor-output optocouplers in the MCT series

Why Choose Diode House:

• Authentic, brand-certified products from Onsemi, Fairchild, and other industry leaders
• Trusted distributor across India for all industrial electronics components
• Reliable stock availability for bulk orders and project requirements 

The MOC3021SR2M Optocoupler from Onsemi is a high-performance, industry-standard phototransistor output optoisolator designed for safe and efficient signal transfer. It provides high electrical isolation, fast switching, and reliable operation in both consumer and industrial electronic systems. Its SOP6 SMD package makes it ideal for compact PCB layouts where space and safety are critical.

Uses and Applications

• Microcontroller to high voltage isolation
• AC load switching and triggering
• Solid state relays
• Signal isolation in industrial automation
• Switching circuits in home appliances
• Power supply feedback isolation
• General purpose optoisolation

Technical Specifications

• Type – Phototransistor output optocoupler
• Isolation Voltage – 5000 Vrms
• Input LED Forward Voltage – 1.15 V typical
• Output Collector Emitter Voltage – 30 V
• Collector Current – 50 mA
• Current Transfer Ratio CTR – 20 percent to 300 percent
• Operating Temperature Range – minus 40 degree C to plus 100 degree C
• Package Type – SOP6 SMD
• RoHS Compliant – Yes
• Brand – Onsemi

Benefits

• High isolation for user and circuit safety
• Stable and reliable performance
• Fast response switching
• Compact SMD package suitable for modern PCB layouts
• Long service life and low power consumption
• Suitable for high density industrial designs

Why Buy From Diode House

Diode House is one of the most trusted and popular distributors across India, supplying genuine and brand certified Onsemi components.
We supply bulk quantities with assured original quality for industrial requirements.

Equivalent Brands and Part Numbers

(For reference and comparison only)

• Toshiba – TLP5211
• Vishay – 4N25
• Sharp – PC817
• Broadcom Avago – HCNR200

Alternate Names and Keywords for Searching

MOC3021 Optocoupler
MOC3021 SMD Optocoupler
MOC3021 SR2M
Onsemi MOC3021 Series
Phototransistor Optocoupler
SOP6 Optocoupler
Optoisolator Transistor Output
AC Switching Optocoupler

All Part Numbers in the MOC3021 Series

Here are the commonly used part numbers under the MOC3021 family for easy customer search:

• MOC3021
• MOC3021M
• MOC3021SM
• MOC3021SR2M
• MOC3021TV
• MOC3021W
• MOC3021X
• MOC3021S
• MOC3021K

(All above may vary by package type DIP, SMD, tape and reel, CTR range etc.)