Diode House

S14K250 EPCOS / TDK 250VAC 14mm Varistor – High-Performance Surge Protection MOV

Diode House – India’s Most Popular Stockists & Distributors for All Industrial Electronic Components

The EPCOS / TDK S14K250 is a highly reliable 14mm Metal Oxide Varistor (MOV) designed for robust protection against transient surges, voltage spikes, lightning impulses, and switching surges. With a 250VAC rating and strong energy handling capability, this varistor is ideal for industrial and commercial electronic circuits.

✅ Product Description

The S14K250 varistor provides effective suppression of sudden voltage transients in AC mains and DC circuits. It is widely used in surge protection modules, power supplies, LED drivers, stabilizers, control panels, and automation equipment.

Applications / Uses

• AC mains surge suppression (up to 250VAC)
• SMPS & Power Supply Input Protection
• LED Drivers & Lighting Circuits
• Energy Meters, MCC Panels, Distribution Boards
• Solar Inverters & Charge Controllers
• Motor Drives, VFDs, Industrial Automation
• UPS, Inverters, Battery Chargers
• Home & Industrial Electronics Protection

⭐ Key Benefits

• High surge current capability (4.5kA)
• Strong energy absorption capacity (65 Joules)
• Stable and reliable varistor characteristics
• Compact 14mm disc size for PCB mounting
• Enhances equipment safety and lifespan
• Suitable for commercial & industrial-grade surge protection
• Wide operating temperature range –40°C to +105°C

🏬 Why Buy from Diode House?

DIODE HOUSE is one of the most popular distributors all over India, supplying only 100% genuine, brand-certified industrial electronic components from global manufacturers like:
TDK, EPCOS, ST, TI, ON, NXP, AD, ROHM, TOSHIBA, SAMSUNG, VISHAY, MURATA, CDIL, and more.

We maintain ready stock | fast delivery | assured original quality.

🔍 Alternate Names / Keywords for Searching

• S14K250 Varistor
• 250VAC MOV 14mm
• EPCOS 250V Varistor
• TDK S14K Series Varistor
• Metal Oxide Varistor 250VAC
• Surge Protection MOV
• B72214S251K101
• MOV for AC mains protection
• PCB Mount Varistor 250V

📘 All Part Numbers in S14K Series (for SEO on IndiaMART)

Paste this list in Keywords section for higher reach:

S14K14, S14K17, S14K20, S14K25, S14K30, S14K35, S14K40, S14K60, S14K75, S14K95,
S14K115, S14K130, S14K150, S14K175, S14K230, S14K250, S14K275, S14K300, S14K320,
S14K350, S14K385, S14K420, S14K440, S14K460, S14K510, S14K560, S14K620, S14K680

 

S14K30 – EPCOS / TDK 30VAC 14mm Metal Oxide Varistor (MOV)

Diode House – India’s Trusted Distributor of Industrial Electronic Components

The EPCOS / TDK S14K30 is a 14mm Metal Oxide Varistor (MOV) designed for low-voltage AC mains overvoltage protection. Rated for 30VAC, this MOV safeguards electronic circuits from transient voltage spikes, switching surges, and lightning transients, making it ideal for industrial, commercial, and consumer applications.

✅ Product Description

The S14K30 MOV is suitable for low-voltage AC circuits requiring reliable surge protection. Its compact 14mm disc size allows easy PCB mounting, with a peak surge current of 1 kA and energy absorption of 9 J, ensuring durable and reliable performance.

📌 Applications / Uses

• AC mains surge protection (up to 30VAC)
• Industrial and consumer power supplies
• LED drivers & low-voltage lighting circuits
• UPS, inverters, and stabilizers
• Motor control and automation equipment
• Energy meters and distribution boards
• Semiconductor switching protection

⭐ Key Benefits

• Peak surge current: 1 kA
• Surge energy absorption: 9 J
• Wide operating temperature: –40°C to +105°C
• Compact 14mm disc for easy PCB mounting
• Stable varistor voltage characteristics for reliable protection
• Genuine EPCOS / TDK quality

📦 Technical Specifications

🔍 Alternate Names / Keywords

• S14K30 Varistor
• EPCOS 30V MOV
• TDK 14mm Varistor
• MOV 30VAC 14mm
• Metal Oxide Varistor 47V
• B72214S300K101
• Low-voltage AC surge protection MOV

📘 Popular S14K Series Part Numbers

S14K14, S14K25, S14K30, S14K40, S14K50, S14K60, S14K75, S14K100, S14K115, S14K130,
S14K150, S14K175, S14K200, S14K225, S14K250, S14K275, S14K300, S14K320, S14K330, S14K360

S10K50 EPCOS / TDK Metal Oxide Varistor (MOV) is a high-performance surge protection component designed to protect sensitive electronic circuits from voltage spikes, transients, and lightning-induced surges. It provides reliable overvoltage protection with fast response time and stable performance, making it ideal for industrial, commercial, and general-purpose electronic applications.

This varistor belongs to the EPCOS / TDK Disc Varistor Standard 10mm Series, offering excellent clamping characteristics, high surge handling capability, and long service life. It is widely used in power supplies, control boards, inverters, chargers, LED drivers, household appliances, SMPS, and general electronic circuits.

Diode House is one of the most popular and trusted distributors across India for all industrial electronic components.

Key Features & Benefits:

• Provides reliable protection against AC line voltage spikes
• Fast response to transient voltage surges
• High surge capability (up to 2.5 kA)
• Compact 10 mm disc design ideal for PCB mounting
• Stable performance under repeated surge events
• Suitable for wide range of industrial and power applications
• Long operational life with high energy absorption
• Trusted EPCOS / TDK brand quality

Applications / Uses:

• SMPS & power supplies
• LED drivers and lighting equipment
• Control panels & industrial controllers
• Household appliances & consumer electronics
• Battery chargers, adapters & transformers
• Inverters, stabilizers & UPS
• Solar charge controllers
• General electronic surge protection circuits

Technical Specifications (Best & Complete):

Alternate Names / Keywords for Searching:

S10K50 Varistor
TDK 50VAC MOV
EPCOS B72210S500K101
10mm MOV 50V
Metal Oxide Varistor 50VAC
EPCOS / TDK Standard MOV Series
Surge Protection Varistor 50V
Radial Lead Varistor 10mm
MOV for SMPS / LED Driver

S20K510 EPCOS Metal Oxide Varistor – 510VAC ±10%, 20mm Disc

The S20K510 EPCOS (TDK) Metal Oxide Varistor is a high-performance surge protection device engineered for reliable overvoltage suppression in industrial, commercial, and consumer electronic equipment. This varistor ensures stable circuit operation by protecting against transient voltage spikes, lightning surges, and switching transients. Designed with precision, it offers long service life, excellent thermal stability, and compliance with international safety standards.

Uses, Details, and Benefits:

• Provides surge suppression in industrial control systems, SMPS, UPS, and other power electronics.
• Protects motors, transformers, and sensitive electronic circuits from overvoltage transients.
• Effective lightning and spike protection for electronic panels and power distribution equipment.
• Suitable for EMI/RFI filtering and transient voltage absorption in harsh electrical environments.
• Fast response time (<25 ns) ensures immediate protection against sudden surges.
• Compact 20mm disc size allows easy integration in tight PCB layouts.
• Epoxy-coated radial leads ensure flame retardancy and mechanical robustness.
• High energy absorption rating for repetitive surge events.
• Reliable EPCOS quality ensures consistent performance across multiple applications.

Key Specifications:

• Varistor Voltage (Vr): 825VDC (typical)
• AC Operating Voltage (VAC): 510VAC
• Disc Diameter: 20mm
• Tolerance: ±10%
• Maximum Surge Current (Imax): 6.5kA (8/20 μs waveform)
• Clamping Voltage (Vc): ~845V at 50A surge
• Energy Absorption (Wmax): High joule rating for repetitive surges
• Response Time: <25 ns
• Operating Temperature Range: –40°C to +85°C
• Package Type: Radial leaded, epoxy-coated

Stockists / Distributors:
Available with Diode House – Genuine, brand-certified EPCOS components. We are the most trusted distributors of industrial electronics components across India.

Equivalent Brands / Part Numbers:

• EPCOS (TDK) S20K510

S14K50 EPCOS / TDK 50VAC 14mm Standard Disc Varistor

The S14K50 EPCOS / TDK Varistor is a high-performance metal oxide varistor (MOV) designed for robust surge protection in industrial, commercial, and consumer electronic circuits. Its compact 14mm disc size and PCB-mount radial termination make it ideal for space-constrained applications while providing reliable protection against transient voltage spikes and surges. Engineered for durability, the S14K50 ensures long-term circuit stability under fluctuating electrical conditions.

Key Specifications:

• Manufacturer: TDK / EPCOS
• Product Category: Varistors (MOVs)
• Series: Disc Varistor, Standard 14mm
• Mounting Style: PCB Mount
• Termination Style: Radial
• Voltage Rating AC: 50 VAC
• Voltage Rating DC: 65 VDC
• Varistor Voltage (Vr): 82 V
• Clamping Voltage (Vc): 135 V
• Diameter: 14 mm
• Length: 18.5 mm
• Peak Surge Current: 4.5 kA
• Surge Energy Rating: 15 J
• Capacitance: 1800 pF
• Operating Temperature Range: -40°C to +105°C
• Tolerance: ±10%
• Packaging: Bulk (Factory Pack Quantity: 500 pcs)
• Unit Weight: 4 g
• RoHS Compliant: Yes

Uses, Details, Benefits:

• Provides overvoltage protection for sensitive electronic circuits.
• Absorbs high-energy transient voltage spikes from lightning, switching, and other surges.
• Suitable for PCB-mounted applications in industrial, consumer, and automotive electronics.
• Compact 14mm size allows installation in tight spaces.
• High surge current capacity and energy rating ensure long-term reliability.
• Maintains circuit stability across extreme temperatures (-40°C to +105°C).

Distributor & Stockiest Information:
Diode House is a trusted distributor across India for industrial electronic components. We supply genuine EPCOS / TDK MOVs and other brand-certified components, ensuring quality and reliability for all your electronic projects.

Equivalent Brands / Part Numbers:

• EPCOS / TDK S14K50
• B72214S500K101

S07K420 EPCOS / TDK Metal Oxide Varistor is a high-performance surge protection component designed for reliable protection of electronic circuits from transient over-voltage spikes, lightning surges, and switching surges.
This 7mm disc-type MOV ensures long operating life, stable voltage clamping, and excellent thermal durability for industrial and commercial applications.

Diode House is one of the most trusted and popular distributors across India, offering 100% genuine and brand-certified EPCOS / TDK varistors for all industrial electronic requirements.

Uses / Applications

✔ SMPS Power Supplies
✔ LED Drivers & Lighting Protection
✔ Industrial Control Panels
✔ Consumer Electronics
✔ Energy Meters
✔ Solar Inverters / Solar Controllers
✔ UPS / Stabilizers
✔ Battery Chargers
✔ Automotive Electronics
✔ Instrumentation & Measurement Equipment

Key Benefits

• High surge absorption capability
• Fast response to transient spikes
• Long operating life & stable performance
• Compact size (7mm standard series)
• Trusted EPCOS/TDK brand reliability
• Ideal for PCB mounting radial applications

Technical Specifications (Best & Complete)

Alternate Names:-

• S07K420 MOV
• EPCOS 420VAC Varistor
• TDK S07K Series Varistor
• Metal Oxide Varistor 420VAC
• B72207S421K101
• Surge Protection Varistor
• MOV 7mm 420VAC
• EPCOS MOV 07K Series

 

The S14K275 EPCOS / TDK Metal Oxide Varistor (MOV) is a high-performance over-voltage protection component designed for AC line protection applications. Built with a 14mm Disc Standard Series, it provides excellent surge suppression, high energy absorption, and stable long-life performance. This MOV reliably protects industrial, commercial, and consumer electronic equipment from voltage transients such as lightning strikes, switching surges, and power line disturbances.

Ideal for SMPS, LED Drivers, Inverters, Stabilizers, Solar Controllers, Power Supplies, Home Appliances, Industrial Control Units, Medical Equipment, and Consumer Electronics.

DIODE HOUSE is one of the most popular, trusted & leading distributors across India, dealing in all types of industrial electronic components.
We supply 100% genuine, brand-certified EPCOS / TDK varistors with ready stock and fast delivery.

Key Features & Benefits

• Excellent protection against voltage spikes & transients
• High surge capability up to 4.5 kA
• Suitable for 275VAC line voltage protection
• High energy absorption capability (71 Joules)
• Reliable operation in harsh industrial environments
• Wide operating temperature range
• Compact radial PCB mount design
• Long service life with stable varistor characteristics
• Ideal for industrial & commercial equipment safety

Detailed Technical Specifications

Applications

• LED Drivers
• SMPS / Power Supplies
• Inverters / UPS
• Voltage Stabilizers
• Solar Charge Controllers
• Home Appliances
• Industrial Control Systems
• Electronic Meters / Panels
• Telecom Equipment
• Medical & Laboratory Equipment

 

Alternate Names

• S14K275 MOV
• S14K275 TDK Varistor
• EPCOS 275VAC 14mm MOV
• 14D275K Varistor
• 275VAC Metal Oxide Varistor

Diode House brings you the EPCOS / TDK S14K40 Metal Oxide Varistor, a high-performance surge protection component designed for AC line protection, industrial control systems, and sensitive electronic circuits. Known for its long-life stability, accurate clamping, and robust surge absorption, this 14mm MOV is ideal for a wide range of industrial and commercial applications.

Product Description

The S14K40 EPCOS/TDK MOV is a disc-type radial varistor engineered for reliable protection against voltage spikes, transient surges, lightning impulses, and switching surges. Its optimized 14mm disc size ensures higher energy handling capacity, stable clamping, and consistent performance in demanding environments.

This MOV is widely used in power supplies, SMPS, LED drivers, stabilizers, UPS systems, chargers, adapters, industrial electronics, and control panels.

Diode House is one of the most popular distributors across India for all industrial electronic components, ensuring 100% genuine EPCOS/TDK varistors with best-in-class availability.

Applications / Uses

✔ Surge protection for electronic circuits
✔ SMPS, LED drivers, chargers & adapters
✔ Industrial control systems & automation equipment
✔ Stabilizers, UPS, inverter circuits
✔ AC mains protection for PCB assemblies
✔ Relay boards, power modules, and energy meters
✔ Lightning and transient voltage suppression

Key Benefits

✔ Reliable EPCOS / TDK genuine quality
✔ High surge energy absorption (13 Joules)
✔ Strong peak surge current rating (1 kA)
✔ Accurate clamping for equipment safety
✔ Wide −40°C to +105°C operating range
✔ Long life and excellent thermal stability
✔ Ideal for industrial and commercial-grade electronics

Technical Specifications

S07K50 EPCOS / TDK 50VAC 7mm Varistor – Compact Surge Protection MOV

Diode House – India’s Trusted Distributor of Industrial Electronic Components

The EPCOS / TDK S07K50 is a reliable 7mm Metal Oxide Varistor (MOV) designed for low-voltage AC surge protection. With a 50VAC rating and compact 7mm disc size, it protects sensitive electronics from transient voltage spikes, lightning surges, and switching surges.

✅ Product Description

The S07K50 MOV is ideal for low-voltage AC circuits, small power supplies, LED drivers, and consumer electronics. Its compact size allows easy PCB mounting while providing strong surge suppression.

📌 Applications / Uses

• Low-voltage AC mains protection (50VAC)
• SMPS and small power supply input protection
• LED drivers and compact lighting circuits
• Consumer electronics surge suppression
• Low-voltage control panels and instrumentation
• Industrial automation circuits with low AC voltage

⭐ Key Benefits

• Reliable protection against voltage spikes and surges
• High peak surge current (1.2kA)
• Energy absorption 4.2 Joules
• Compact 7mm disc – ideal for PCB mounting
• Wide operating temperature range: –40°C to +105°C
• Consistent varistor voltage characteristics
• Genuine EPCOS / TDK quality

🔍 Alternate Names / Keywords

• S07K50 Varistor
• EPCOS 50V MOV
• TDK 7mm Varistor
• Low-Voltage MOV 50VAC
• Metal Oxide Varistor 7mm
• B72207S500K101
• PCB Mount Varistor 50V
• Low AC voltage surge protector

📘 S07K Series Part Numbers

S07K14, S07K17, S07K20, S07K25, S07K30, S07K35, S07K40, S07K50, S07K60, S07K75,
S07K95, S07K115, S07K130, S07K150, S07K175, S07K230, S07K250

Littelfuse Metal Oxide Varistors (MOVs) are high-reliability surge protection components designed to protect electronic equipment from transient voltage spikes, lightning surges, switching surges, electrostatic discharge (ESD), and other overvoltage events. These MOVs are engineered using metal oxide materials that offer fast response time and robust clamping capability.

Diode House is one of the most popular and trusted distributors across India for all industrial electronic components, offering genuine and brand-certified Littelfuse MOVs in multiple sizes and voltage ratings.

Key Features & Benefits

• Fast Response Time – Provides immediate protection against transient surges
• High Surge Current Capability – Ensures longer life and better protection in harsh environments
• Wide Operating Voltage Range – Suitable for both AC & DC circuits
• Excellent Clamping Voltage Characteristics – Protects circuits from damage effectively
• High Reliability & Long Service Life – Built with premium-quality MOV discs
• Radial Leaded Construction – Easy for PCB mounting
• RoHS Compliant
• Industry-standard Sizes – 5mm, 7mm, 10mm, 14mm, 20mm

Applications / Uses

Ideal for protection in:

• LED Drivers & SMPS Power Supplies
• Home Appliances (AC, Refrigerator, Washing Machine)
• Power Meters, Energy Meters
• Stabilizers, UPS, Inverters
• Industrial Control Panels
• Communication Devices
• Automotive Electronics
• Consumer Electronics
• Solar Controllers & Battery Chargers

Technical Specifications (General MOV Series)

Why Buy from Diode House?

• Most popular industrial electronics distributor across India
• Guaranteed genuine Littelfuse components
• Ready stock for bulk orders
• Fast delivery across India
• Expert guidance for MOV selection

 

Alternate Names / Keywords for Searching

• Littelfuse MOV
• Metal Oxide Varistor Littelfuse
• Littelfuse Surge Protection Device
• MOV Varistor Radial Type
• Littelfuse Voltage Suppressor
• Overvoltage Protection Component
• LA Series Varistor
• ZA Series Varistor
• UltraMOV Varistor
• Surge Arrestor Littelfuse
• High Voltage MOV
• AC Line Surge Protection

Zinc Oxide Varistors (ZnO Varistors) Overview

Definition:
A Zinc Oxide Varistor (ZnO Varistor) is a voltage-dependent resistor that protects electrical and electronic circuits from transient voltage spikes and surges. It is made primarily from zinc oxide (ZnO) grains combined with other metal oxides, pressed into a disc or block, and fitted with electrodes.

How It Works

• Non-linear resistance: At normal voltage, the varistor exhibits very high resistance (almost insulating).
• Clamping action: When voltage exceeds a threshold (varistor voltage), resistance drops sharply, diverting the excess current away from sensitive components.
• Energy absorption: ZnO varistors absorb energy from surges and spikes, protecting equipment from damage.

Key Characteristics

• Varistor Voltage (V): Voltage at which the varistor starts conducting significant current.
• Clamping Voltage (Vclamp): Maximum voltage the varistor allows across the protected circuit during a surge.
• Peak Surge Current (Imax): Maximum transient current it can safely handle.
• Energy Rating (Joules): Total energy it can absorb without damage.
• Response Time: Extremely fast (<25 ns typical).
• Operating Temperature Range: Usually –40°C to +105°C or higher for industrial models.

Applications

• AC mains surge protection in industrial and consumer electronics
• Power supplies, SMPS, LED drivers, inverters, stabilizers
• Energy meters and distribution panels
• Lightning and switching surge suppression
• Motor drives and solar inverters

Advantages of ZnO Varistors

• High surge current capability
• Fast response to voltage transients
• Compact and reliable
• Stable characteristics over long operational life
• Non-polarized: can be used in AC or DC circuits

Typical ZnO Varistor Packages

• Disc Type: Most common; sizes range from 7mm to 20mm+
• Block / Multilayer: For high energy industrial applications
• Lead Style: Radial leads, axial leads, or surface-mount devices (SMD)

 

THINKING Metal Oxide Varistors (MOVs) are highly reliable surge protection components designed to safeguard electronic circuits from voltage spikes, lightning surges, switching transients, and power line disturbances. These MOVs offer fast response time, stable performance, wide operating voltage range, and long lifespan — making them ideal for industrial, commercial, and consumer electronics applications.

As one of the most popular and trusted distributors across India, DIODE HOUSE supplies 100% brand-certified, genuine MOV components for OEMs, EMS companies, and industrial manufacturers.

Uses & Applications

• Surge protection in SMPS power supplies
• Protection for LED drivers, stabilizers, inverters, UPS, VFDs
• Motor control circuits & general power lines
• Solar charge controllers & battery chargers
• Home appliances (ACs, TVs, Refrigerators, Washing Machines)
• Industrial electronic equipment
• Telecom equipment, instrumentation & automation devices

Key Benefits

• Excellent surge absorption capability
• Fast clamping response time
• Wide range of AC/DC voltage ratings
• High reliability & stable performance
• Flame-retardant epoxy coating
• Long operational life
• Suitable for PCB mounting (radial leads)

Specifications (General)

• Type: Metal Oxide Varistor (MOV)
• Mounting Style: Radial / PCB Mount
• Product Series: THINKING MOV Series (07D, 10D, 14D, 20D)
• Disc Size Options: 7 mm / 10 mm / 14 mm / 20 mm
• Voltage Tolerance: ±10%
• Operating Temperature: –40°C to +85°C
• Clamping Voltage: Depends on part number
• Energy Rating: Higher disc size = higher surge capability

 

THINKING MOV Part Numbers – Complete Series

THINKING 07D Series

• 07D101K (100V) 07D151K (150V) 07D201K (200V) 07D241K (240V) 07D271K (270V) 07D301K (300V) 07D361K (360V) 07D391K (390V) 07D431K (430V) 07D471K (470V) 07D511K (510V) 07D561K (560V) 07D621K (620V) 07D681K (680V) 07D751K (750V)

THINKING 10D Series

• 10D101K (100V) 10D151K (150V) 10D201K (200V) 10D241K (240V) 10D271K (270V) 10D301K (300V) 10D361K (360V) 10D391K (390V) 10D431K (430V) 10D471K (470V) 10D511K (510V) 10D561K (560V) 10D621K (620V) 10D681K (680V) 10D751K (750V)

THINKING 14D Series

• 14D101K (100V) 14D151K (150V) 14D201K (200V) 14D241K (240V) 14D271K (270V) 14D301K (300V) 14D361K (360V) 14D391K (390V) 14D431K (430V) 14D471K (470V) 14D511K (510V) 14D561K (560V) 14D621K (620V) 14D681K (680V) 14D751K (750V)

THINKING 20D Series

• 20D101K (100V) 20D151K (150V) 20D201K (200V) 20D241K (240V) 20D271K (270V) 20D301K (300V) 20D361K (360V) 20D391K (390V) 20D431K (430V) 20D471K (470V) 20D511K (510V) 20D561K (560V) 20D621K (620V) 20D681K (680V)20D751K (750V)

Metal Oxide Varistor (MOV) – High-Performance Surge Protection Devices

Diode House – Trusted Distributor of Industrial Electronic Components Across India

Metal Oxide Varistors (MOVs) are essential electronic components used to protect circuits and devices from voltage spikes, surges, and transient overvoltages. Made from zinc oxide (ZnO) ceramic, MOVs exhibit non-linear resistance characteristics, clamping high-voltage transients while allowing normal operation under standard voltage conditions.

✅ Product Description

MOVs act as voltage-dependent resistors, instantly reducing high-voltage spikes caused by lightning, switching surges, or power induction. They are widely used in industrial, commercial, and consumer electronics for AC/DC mains protection and are available in various diameters, voltage ratings, and energy absorption capabilities to suit all applications.

📌 Applications / Uses

• AC/DC mains surge protection
• Power supplies, SMPS, and LED drivers
• UPS, inverters, and stabilizers
• Motor drives and industrial automation equipment
• Energy meters, distribution boards, and control panels
• Solar inverters and charge controllers
• Semiconductor switching protection (MOSFETs, Transistors, Thyristors)
• Telecommunication and electronic consumer devices

⭐ Key Benefits

• Fast response to voltage transients (nanosecond range)
• Protects sensitive electronics from damage
• Wide operating temperature: –40°C to +105°C
• Compact disc or radial leaded designs for easy PCB mounting
• High peak surge current and energy absorption
• Stable varistor voltage for reliable protection
• Available in multiple sizes and voltage ratings (low-voltage to high-voltage)
• Genuine, brand-certified quality (EPCOS / TDK / Thakor / VCRR)

📦 Technical Specifications (Typical Ranges)

🔍 Keywords / Alternate Names

• MOV (Metal Oxide Varistor)
• TDK MOV, EPCOS MOV
• Thakor / VCRR MOV
• AC surge protection device
• High-voltage and low-voltage varistor
• Industrial, commercial, and consumer protection
• B722xx / 14D / 20D series MOV

 

Diode House offers the genuine EPCOS / TDK S14K300 MOV Varistor, designed for robust surge suppression in AC line protection circuits. This 14mm disc varistor provides stable clamping characteristics, long service life, and reliable performance under high-energy surge events.

Product Description

The S14K300 is a compact, PCB-mount Metal Oxide Varistor (MOV) engineered to protect sensitive electronic circuits from voltage spikes, transients, surges, and lightning-induced voltage abnormalities. Widely used in power supplies, industrial controllers, SMPS, UPS systems, EV chargers, inverters, and consumer electronics.

Key Features & Benefits

• High Surge Handling: 4.5kA peak surge capability for strong transient protection
• Stable Varistor Voltage: 470V for consistent clamping performance
• Wide Operating Temperature: –40°C to +105°C suitable for industrial environments
• High Energy Rating: 76 Joules for endurance during repetitive surges
• Compact & Rugged: 14mm disc size ideal for space-constrained PCB designs
• Radial Leaded Construction: Easy to mount on standard PCBs
• Long Life & Reliable: EPCOS/TDK quality ensures better stability and durability
• RoHS Compliant: Safe for new product designs

Technical Specifications

📌 Applications / Uses

• AC Mains Line Protection (110V / 230V)
• SMPS Power Supplies
• Motor Drives & Industrial Control Panels
• UPS / Inverters / Stabilizers
• Solar Power Systems
• EV Chargers, Charging Stations
• Home Appliances Surge Protection
• LED Drivers & Ballasts
• Communication Equipment Spike Protection

 

Alternate Names / Search Keywords

• S14K300 Varistor
• EPCOS 14K300 MOV
• TDK MOV 300VAC
• 14mm Varistor 300V
• 300VAC MOV 14mm
• B72214S301K101
• Metal Oxide Varistor 300V

S14K320 – EPCOS / TDK 320VAC 14mm Metal Oxide Varistor (MOV)

Diode House – India’s Trusted Distributor of Industrial Electronic Components

The EPCOS / TDK S14K320 is a 14mm Metal Oxide Varistor (MOV) designed for AC mains overvoltage protection. Rated for 320VAC, this MOV protects electronic circuits from transient voltage spikes, switching surges, and lightning-induced surges, making it ideal for industrial, commercial, and consumer applications.

✅ Product Description

The S14K320 MOV is suitable for medium-to-high voltage AC circuits requiring reliable surge protection. Its 14mm disc size ensures easy PCB mounting while maintaining robust performance with a peak surge current of 4.5 kA.

📌 Applications / Uses

• AC mains overvoltage protection (up to 320VAC)
• Industrial power supplies and SMPS
• LED drivers & lighting circuits
• Stabilizers, UPS, and inverters
• Motor drives and automation equipment
• Energy meters, distribution boards, and control panels
• Solar inverters & charge controllers

⭐ Key Benefits

• High peak surge current: 4.5 kA
• Surge energy absorption: 84 J for repeated surges
• Wide operating temperature range: –40°C to +105°C
• Stable varistor voltage characteristics
• Compact 14mm disc suitable for PCB mounting
• Genuine EPCOS / TDK quality

📦 Technical Specifications

🔍 Alternate Names / Keywords

• S14K320 Varistor
• EPCOS 320V MOV
• TDK 14mm Varistor
• MOV 320VAC 14mm
• Metal Oxide Varistor 510V
• B72214S321K101
• Industrial AC surge protection MOV

📘 Popular S14K Series Part Numbers

S14K14, S14K25, S14K40, S14K50, S14K60, S14K75, S14K100, S14K115, S14K130, S14K150,
S14K175, S14K200, S14K225, S14K250, S14K275, S14K300, S14K320, S14K330, S14K360, S14K390,
S14K430, S14K470, S14K510, S14K560, S14K610, S14K680, S14K750

 

S20K300 – EPCOS / TDK 300VAC 20mm Advanced Metal Oxide Varistor (MOV)

Diode House – Trusted Distributor of Industrial Electronic Components Across India

The EPCOS / TDK S20K300 is a 20mm Advanced Metal Oxide Varistor (MOV) designed to protect AC/DC circuits from overvoltage transients, lightning surges, and switching spikes. Rated for 300VAC, it provides high energy absorption and reliable circuit protection in industrial, commercial, and consumer applications.

✅ Product Description

The S20K300 Advanced MOV is ideal for high-reliability AC mains surge protection. Its 21.5mm disc diameter and radial lead design allow easy PCB mounting. With a peak surge current of 1 kA and surge energy rating of 250 J, this MOV ensures robust, repeatable protection for sensitive electronics.

📌 Applications / Uses

• AC mains surge protection (up to 300VAC)
• Industrial power supplies and SMPS
• LED drivers & lighting circuits
• UPS, inverters, and stabilizers
• Motor drives and automation equipment
• Energy meters and distribution boards
• Solar inverters and charge controllers
• Semiconductor switching protection (MOSFETs, Thyristors, Transistors)

⭐ Key Benefits

• Peak surge current: 1 kA
• High energy absorption: 250 J
• Wide operating temperature: –40°C to +105°C
• Stable varistor voltage for reliable protection
• Compact 20mm disc suitable for PCB mounting
• Genuine EPCOS / TDK quality – trusted in India

📦 Technical Specifications

🔍 Alternate Names / Keywords

• S20K300 Varistor
• EPCOS 300V Advanced MOV
• TDK 20mm Advanced Varistor
• S20K300E2
• High-energy AC surge protection MOV
• Industrial and commercial MOV

 

S20K130 EPCOS / TDK 130VAC 20mm Varistor – Heavy-Duty Surge Protection MOV

Diode House – India’s Most Popular & Trusted Distributors of Industrial Electronic Components

The EPCOS / TDK S20K130 is a high-performance 20mm Metal Oxide Varistor (MOV) designed for heavy surge suppression applications. With a large disc size (20mm) and high surge current capability, it offers excellent protection from transient spikes, lightning impulses, AC line disturbances, and industrial switching surges.

✅ Product Description

The S20K130 MOV provides strong protection in both consumer and industrial electronics. It is suitable for circuits requiring higher surge endurance and enhanced reliability, commonly used at the AC input stage for 130VAC applications.

📌 Applications / Uses

• AC Mains Protection (up to 130VAC)
• High-Surge Industrial Power Supplies
• LED Drivers & Lighting Equipment
• Stabilizers & Voltage Controllers
• UPS, Inverters, SMPS Units
• Energy Meters, Control Panels, MCC Panels
• Solar Power Systems & Charge Controllers
• Motor Controllers, VFDs & Automation Equipment
• Home Appliances & Commercial Electronics

⭐ Key Benefits

• Heavy-duty 20mm MOV with 8kA peak surge current
• Long service life under repeated surges
• Very reliable clamping characteristics
• High energy absorption (74 Joules)
• Wide operating temperature range –40°C to +105°C
• Ensures safety of sensitive electronics
• Suitable for both commercial and industrial-grade equipment
• Genuine EPCOS/TDK quality – stable and consistent performance

 

🏬 Why Choose Diode House?

DIODE HOUSE is the most preferred and trusted distributor all over India, supplying:

• 100% original, brand-certified components
• Only from top manufacturers: TDK, EPCOS, ST, TI, ON, NXP, AD, ROHM, TOSHIBA, SAMSUNG, VISHAY, MURATA, CDIL, etc.
• Ready stock, fast delivery, pan-India supply
• Top-quality customer support for industrial electronic components

🔍 Alternate Names / Search Keywords

• S20K130 Varistor
• EPCOS 130V MOV
• TDK 20mm Varistor
• MOV 130VAC 20mm
• Heavy Duty Varistor
• Metal Oxide Varistor 130V
• Surge Protection MOV
• B72220S131K101
• AC mains surge suppressor
• High surge current MOV

📘 Popular Part Numbers in the S20K Series (SEO Keywords)

S20K14, S20K17, S20K20, S20K25, S20K30, S20K35, S20K40, S20K60, S20K75,
S20K95, S20K115, S20K130, S20K150, S20K175, S20K230, S20K250, S20K275,
S20K300, S20K320, S20K350, S20K385, S20K420, S20K440, S20K460, S20K510,
S20K560, S20K620, S20K680

 

The EPCOS TDK S07K30 Varistor is a high-performance Metal Oxide Varistor (MOV) designed to provide reliable surge and transient voltage protection in a wide range of electronic applications. Built with a 7mm standard disc, this MOV delivers excellent clamping stability, fast response time, and long operational life, making it ideal for sensitive and compact PCB designs.

This varistor effectively protects equipment against voltage spikes, lightning surges, switching transients, and electrical noise, ensuring long-term safety and durability of circuits. EPCOS / TDK MOVs are widely preferred in the industry for their high quality, reliability, and global certification standards.

Applications / Uses:

• Power supply surge protection
• Consumer electronics
• Telecom and networking equipment
• Industrial automation systems
• Home appliances
• LED lighting systems
• Smart meters and control panels
• Surge suppression modules
• General PCB circuit protection

Key Features & Specifications:

• Brand / Manufacturer: EPCOS / TDK
• Series: Standard Disc 7mm MOV
• Part Number: S07K30 (B72207S300K101)
• Product Type: Metal Oxide Varistor
• Mounting Style: PCB Mount
• Lead Type: Radial Leads

Electrical Specifications:

• Varistor Voltage (Vv): 47V
• Clamping Voltage (Vc): 93V
• Rated Voltage AC: 30VAC
• Rated Voltage DC: 38VDC
• Peak Surge Current: 250A
• Energy Rating: 2 Joules
• Capacitance: 1200pF

Mechanical & Environmental:

• Disc Size: 7mm
• Tolerance: ±10%
• Operating Temperature: -40°C to +105°C
• Packaging: Bulk (1000 pcs)
• Unit Weight: 800mg
• Compliance: RoHS, Lead-Free

Benefits:

• Compact 7mm disc size ideal for space-limited PCBs
• High surge absorption and strong clamping performance
• Protects equipment from lightning and switching surges
• Long working life with stable electrical characteristics
• Widely used, industry-trusted EPCOS / TDK reliability
• Easy radial mounting on standard PCBs

Alternate Names / Keywords for Searching (SEO Friendly):

• EPCOS MOV S07K30
• TDK Varistor 30VAC 7mm
• B72207S300K101 MOV
• 47V Surge Protection Varistor
• MOV 7mm Radial Type
• EPCOS TDK Voltage Dependent Resistor
• Disc Varistor 7mm 30VAC

Complete Series Part Numbers (7mm EPCOS MOV Series):

Standard 7mm MOV Series – All Part Numbers:

• S07K17 – 14VAC, 22V
• S07K25 – 20VAC, 34V
• S07K30 – 30VAC, 47V
• S07K35 – 35VAC, 56V
• S07K60 – 50VAC, 82V
• S07K95 – 75VAC, 150V
• S07K130 – 110VAC, 220V
• S07K150 – 130VAC, 270V
• S07K175 – 150VAC, 320V
• S07K230 – 185VAC, 390V
• S07K250 – 210VAC, 430V
• S07K275 – 230VAC, 460V
• S07K300 – 250VAC, 500V
• S07K320 – 275VAC, 520V
• S07K385 – 320VAC, 615V
• S07K420 – 340VAC, 670V
• S07K460 – 385VAC, 775V

About Us – Diode House:

DIODE HOUSE is one of India’s most trusted and popular distributors & stockists of industrial electronic components.

S20K320 – EPCOS / TDK 320VAC 20mm Metal Oxide Varistor (MOV)

Diode House – India’s Trusted Distributor of Industrial Electronic Components

The EPCOS / TDK S20K320 is a high-performance 20mm Metal Oxide Varistor (MOV) designed for industrial AC mains overvoltage protection. Rated for 320VAC, this MOV safeguards sensitive electronics from transient voltage spikes, switching surges, and lightning-induced surges.

✅ Product Description

The S20K320 MOV is suitable for high-energy AC circuits where reliable surge protection is critical. Its 20mm disc size and high peak surge current rating (8 kA) ensure robust performance for industrial and commercial electronics.

📌 Applications / Uses

• AC mains overvoltage protection (up to 320VAC)
• Industrial power supplies and SMPS
• LED drivers & high-power lighting circuits
• Stabilizers, UPS, and inverters
• Motor drives and automation equipment
• Energy meters, distribution boards, and industrial panels
• Solar inverters and charge controllers

⭐ Key Benefits

• High peak surge current: 8 kA
• Surge energy absorption: 184 J for repeated surges
• Wide operating temperature: –40°C to +105°C
• Stable varistor voltage for reliable protection
• Robust 20mm disc suitable for PCB mounting
• Genuine EPCOS / TDK quality

📦 Technical Specifications

🔍 Alternate Names / Keywords

• S20K320 Varistor
• EPCOS 320V MOV
• TDK 20mm Varistor
• MOV 320VAC 20mm
• Metal Oxide Varistor 510V
• B72220S321K101
• Industrial AC surge protection MOV

📘 Popular S20K Series Part Numbers

S20K14, S20K17, S20K20, S20K25, S20K30, S20K35, S20K40, S20K60, S20K75, S20K95,
S20K115, S20K130, S20K150, S20K175, S20K230, S20K250, S20K275, S20K300, S20K320,
S20K350, S20K385, S20K420, S20K440, S20K460, S20K510, S20K560, S20K620, S20K680

The EPCOS / TDK S14K440 is a high-performance Metal Oxide Varistor (MOV) designed to provide robust surge suppression in AC mains, industrial equipment, power supplies, and sensitive electronic circuits.

Engineered with high reliability, this 14mm disc varistor ensures excellent clamping characteristics, long life, and stability under repeated surge conditions.

✅ Product Description

The S14K440 MOV safeguards electronic devices from voltage spikes, transient surges, lightning surges, switching surges, and power-line disturbances.
Its 440VAC rating and high surge capability (4.5kA) make it an ideal choice for industrial protection applications.

This component is widely used in:

Applications / Uses

• AC Mains Surge Protection (up to 440VAC)
• SMPS & Power Supply Input Protection
• LED Drivers & Lighting Equipment
• Stabilizers & Inverters
• Energy Meters & Control Panels
• Industrial Automation Equipment
• Motor Drivers & Controllers
• Consumer Electronics Protection
• Solar Inverters / Charge Controllers

⭐ Key Benefits

• High surge current capability (up to 4.5kA)
• Wide operating temperature range (-40°C to +105°C)
• Stable and reliable varistor voltage characteristics

📦 Technical Specifications (Best Format)

Alternate Names

• S14K440 Varistor
• EPCOS 440VAC MOV
• TDK S14K Series
• 14mm Varistor 440V
• Metal Oxide Varistor 440VAC
• Surge Protector Varistor
• B72214S441K101
• MOV 440V
• High Voltage Varistor
• AC Mains Surge Protection MOV

All Part Numbers in the S14K Series

S14K14, S14K17, S14K20, S14K25, S14K30, S14K35, S14K40, S14K60, S14K75, S14K95,
S14K115, S14K130, S14K150, S14K175, S14K230, S14K250, S14K275, S14K300, S14K320,
S14K350, S14K385, S14K420, S14K440, S14K460, S14K510, S14K560, S14K620, S14K680

EPCOS (TDK) S14K175 Varistor is a high-quality Metal Oxide Varistor (MOV) designed to protect electronic circuits and equipment from transient voltage surges and spikes. It offers reliable overvoltage protection in industrial, commercial, and consumer electronics. With a 14mm disc size, it is suitable for PCB mounting and ensures long-term stability under harsh conditions.

This varistor provides excellent clamping characteristics, high surge current handling capability, and consistent performance across a wide temperature range. It is commonly used in power supplies, home appliances, LED drivers, industrial controllers, and other surge-sensitive equipment.

Key Features & Specifications:

Applications:

• Surge protection in power supplies and control circuits
• LED drivers and ballasts
• Inverters and UPS systems
• Home appliances (Refrigerators, Air Conditioners, Washing Machines)
• Industrial automation and control systems
• Consumer electronic devices

Alternate / Equivalent Models (Same Series):

• S14K150 – 150VAC, Varistor Voltage 240V
• S14K175 – 175VAC, Varistor Voltage 270V
• S14K230 – 230VAC, Varistor Voltage 360V
• S14K250 – 250VAC, Varistor Voltage 390V
• S14K275 – 275VAC, Varistor Voltage 430V
• S14K300 – 300VAC, Varistor Voltage 485V
• S14K320 – 320VAC, Varistor Voltage 510V
• S14K385 – 385VAC, Varistor Voltage 625V
• S14K420 – 420VAC, Varistor Voltage 680V

Alternate Names / Keywords for Searching:
EPCOS Varistor 175VAC | TDK MOV S14K175 | Metal Oxide Varistor 14mm | Surge Protection Varistor | MOV 175VAC 14mm | B72214S171K101 | EPCOS Disc Varistor | TDK Surge Suppressor | Varistor 270V Clamping | MOV for Power Supply 

The TDK S14K625 is a high-performance Metal Oxide Varistor (MOV) designed for reliable over-voltage protection in industrial, commercial, and consumer electronic equipment. With a robust 625VAC rating, 14mm disk size, and excellent surge handling capacity, it ensures long-term protection against transient voltages, spikes, and surges.
Ideal for SMPS, LED drivers, UPS systems, industrial controllers, inverters, stabilizers, and various electrical protection circuits.

Diode House is one of the most trusted Stockists & Distributors across India for all types of Industrial Electronic Components — supplying only genuine & brand-certified products from world-leading manufacturers.

✅ Key Features

• High surge protection capability
• Stable and uniform performance
• Radial leaded design for PCB mounting
• Wide operating temperature range
• Reliable clamping voltage characteristics
• Long-life EPCOS/TDK quality standard

✅ Technical Specifications

✅ Applications

• SMPS Power Supplies
• LED Drivers
• UPS Systems
• Power Factor Correction Circuits
• Inverters & Stabilizers
• Motor Control Units
• Household Appliances
• Surge Protection Modules
• General-Purpose Overvoltage Protection

Why Buy From Diode House?

• 100% Original, Brand-Certified Components
• Ready Ex-Stock Availability
• Country-Wide Fast Delivery
• Trusted by 10,000+ Industrial Buyers
• Best Pricing for Bulk Quantities

DIODE HOUSE IS THE MOST TRUSTED & POPULAR DISTRIBUTOR ALL OVER INDIA
(Distributors for all Industrial Electronic Components)

 

• 14mm MOV 625V
• S14K Series Varistor
• EPCOS 625VAC MOV
• TDK S14K Varistor
• Surge Protection MOV 14mm

S20K25 – EPCOS / TDK 25VAC 20mm Metal Oxide Varistor (MOV)

Diode House – Trusted Distributor of Industrial Electronic Components Across India

The EPCOS / TDK S20K25 is a 20mm Metal Oxide Varistor (MOV) designed for low-voltage AC mains overvoltage protection. Rated for 25VAC, this MOV safeguards electronic circuits from transient voltage spikes, switching surges, and lightning-induced surges, making it suitable for industrial, commercial, and consumer applications.

✅ Product Description

The S20K25 MOV is ideal for low-voltage AC circuits where reliable surge protection is required. Its 20mm disc size allows PCB mounting while delivering a peak surge current of 2 kA and a surge energy rating of 22 J, ensuring durable and effective protection.

📌 Applications / Uses

• AC mains surge protection (up to 25VAC)
• Industrial and consumer power supplies
• LED drivers & low-voltage lighting circuits
• UPS, inverters, and stabilizers
• Motor control and automation equipment
• Energy meters and distribution boards
• Semiconductor switching protection

⭐ Key Benefits

• Peak surge current: 2 kA
• Surge energy absorption: 22 J
• Wide operating temperature range: –40°C to +105°C
• Stable varistor voltage for reliable protection
• Compact 20mm disc suitable for PCB mounting
• Genuine EPCOS / TDK quality

📦 Technical Specifications

🔍 Alternate Names / Keywords

• S20K25 Varistor
• EPCOS 25V MOV
• TDK 20mm Varistor
• MOV 25VAC 20mm
• Metal Oxide Varistor 39V
• B72220S250K101
• Low-voltage AC surge protection MOV

📘 Popular S20K Series Part Numbers

S20K14, S20K17, S20K20, S20K25, S20K30, S20K35, S20K40, S20K60, S20K75, S20K95,
S20K115, S20K130, S20K150, S20K175, S20K230, S20K250, S20K275, S20K300, S20K320,
S20K350, S20K385, S20K420, S20K440, S20K460, S20K510, S20K560, S20K620, S20K680

 

The S14K680 EPCOS / TDK Metal Oxide Varistor is a high-performance over-voltage protection device designed for industrial and commercial electronic circuits. This 14mm radial-lead MOV provides reliable protection against transient surges, lightning spikes, switching surges, and abnormal voltage conditions. It is widely used in power supplies, SMPS, motors, inverters, stabilizers, LED drivers, UPS systems, and all AC line protection applications.

Diode House is among the most popular & trusted distributors all over India, supplying 100% genuine, brand-certified industrial electronic components with ready stock availability.

Key Features & Benefits

• High surge protection capability (up to 4.5 kA)
• Wide operating temperature range (-40°C to +105°C)
• Excellent clamping performance for line protection
• Suitable for AC mains protection up to 680 VAC
• Long-life stability and reliable TDK/EPCOS quality
• PCB Mount radial leaded construction
• Ideal for EMI/SMPS/Industrial/Power Electronics applications

Technical Specifications

Applications

• LED Drivers
• SMPS & Power Supplies
• Stabilizers
• Inverters
• Solar Controllers
• UPS / Inverter Systems
• Motor Control Boards
• Home Appliances
• Industrial Automation Boards
• Energy Meters
• Surge Protection Circuits
• Line-to-Line & Line-to-Ground Protection

 

Alternate Names

• S14K680 MOV
• EPCOS 680VAC Varistor
• TDK S14K Series MOV
• B72214S681K101
• 14D681K equivalent
• 680V Varistor 14mm
• Metal Oxide Varistor 680V
• AC Line Protection MOV
• Surge Protection Varistor

The S14K460 Metal Oxide Varistor (MOV) from EPCOS / TDK is a high-performance 14mm disc varistor designed for reliable protection against voltage surges, spikes, and transient overvoltage events. It provides excellent clamping characteristics and high surge endurance, making it ideal for industrial, commercial, and consumer electronic equipment.

This MOV is widely used in power supplies, LED drivers, SMPS, energy meters, inverters, stabilizers, motors, solar controllers, industrial control panels, and many other AC line protection applications.

Diode House is one of the most trusted and popular Stockists & Distributors of Industrial Electronic Components all over India, offering genuine EPCOS/TDK MOVs with ready stock availability.

Uses / Applications

• Surge protection for AC line circuits
• Lightning & switching surge suppression
• LED drivers & SMPS
• Industrial control boards
• Stabilizers & UPS
• Inverters & solar charge controllers
• Energy meters
• Consumer appliances
• Motor drives & industrial power systems

Key Benefits

• High energy absorption capability
• Fast response to voltage spikes
• Reliable clamping performance
• Compact 14mm disc size
• Long service life
• Suitable for PCB mounting
• From globally trusted brand EPCOS / TDK

Technical Specifications (Best Professional Format)

Why Buy from Diode House?

• Most popular industrial electronics distributor in India
• 100% genuine & brand-certified EPCOS / TDK components
• Ready stock with fast dispatch
• Complete MOV series available

Alternate Names:-

• EPCOS S14K460
• TDK S14K460 Varistor
• 460VAC MOV
• 14mm MOV 460V
• B72214S461K101
• Metal Oxide Varistor 460V
• Surge Protection Varistor

 

The S14K510 EPCOS / TDK Metal Oxide Varistor is a high-reliability surge protection component designed for industrial and commercial electronic applications. Built using premium TDK MOV technology, this 14mm varistor provides excellent protection against transient surges, voltage spikes, and lightning pulses, ensuring long-term safety and equipment durability.

This varistor is widely used in power supplies, SMPS, motor controllers, industrial panels, inverters, stabilizers, appliances, drives, and all surge-sensitive electronic circuits.

DIODE HOUSE is one of the most trusted stockists & distributors across India for all Industrial Electronic Components.
We supply only genuine EPCOS / TDK brand-certified components.

Key Features / Benefits

• High-energy MOV for demanding surge protection applications
• 510VAC continuous operating voltage
• High surge current capability (4.5 kA)
• Fast response to transient overvoltage
• Long operational life with ±10% tolerance
• Robust radial, PCB-mount construction
• Suitable for industrial & consumer electronics
• Low leakage current and stable performance

Technical Specifications (Professional Format)

Applications

• SMPS & Power Supplies
• AC Line Protection
• Industrial Panels & Controllers
• Stabilizers & UPS Systems
• Inverters / Solar Inverters
• Motor Drives, VFD Systems
• Home Appliances & Consumer Electronics
• LED Drivers, PCB Circuits
• Surge & Lightning Protection Systems

Alternate Names / Keywords for Searching

S14K510 MOV
S14K510 Varistor
TDK S14K510
EPCOS S14K510
14D510K Equivalent
510VAC Varistor 14mm
B72214S511K101
High Voltage MOV 510VAC
Surge Protection Varistor 510V
Metal Oxide Varistor 510VAC

Diode House offers premium quality EPCOS / TDK S20K385 MOV Varistors, widely used for protecting industrial and commercial electronic circuits from high-energy voltage spikes. These MOVs deliver excellent surge handling capability, fast response time, and long-term reliability, making them ideal for demanding applications.

✨ Product Description

The S20K385 is a 20mm disc metal oxide varistor (MOV) designed to protect electronic equipment from transient overvoltage events. Built to TDK’s high manufacturing standards, it offers 620V varistor voltage, 8kA surge capability, and 150J energy absorption, making it suitable for AC mains protection in harsh industrial environments.

🔧 Key Features & Benefits

✔️ Rated Voltage: 385VAC / 505VDC
✔️ High Surge Protection: 8kA peak surge current
✔️ Energy Rating: 150 Joules for robust protection
✔️ Fast Clamping Action: Clamping voltage only 1.025kV
✔️ Reliable EPCOS/TDK quality with long operational life
✔️ UL94V-0 compliant flame-retardant construction
✔️ Wide temperature range: –40°C to +105°C
✔️ Ideal for high-energy surge applications
✔️ Stable performance even under repetitive surge events

🔌 Applications / Uses

Perfect for use in:
• SMPS Power Supplies
• Industrial Control Equipment
• LED Lighting Drivers
• Inverters, UPS Systems
• Home Appliances
• Energy Meters
• Solar Inverters & Controllers
• Power Distribution Panels
• PCB-Based Protection Circuits
• Stabilizers & Servo Controllers

📦 Technical Specifications (Professional Format)

 

📚 Alternate Names

• EPCOS S20K385 MOV
• TDK 385VAC Varistor
• B72220S381K101
• MOV 20mm 385V
• Metal Oxide Varistor 20mm
• Surge Protection Varistor
• S20K Series MOV
• 385VAC MOV TDK
• High Energy MOV 20mm