20D361K MOV Varistor 360V

20D361K MOV varistor (360V), also known as VDR-20D361K, is designed for protecting low to medium voltage AC circuits against transient overvoltage and surge events.

This component is widely used in 230VAC power systems, power adapters, home appliances and industrial control equipment where stable voltage protection and long service life are required.

Compared with higher voltage MOVs, 20D361K is optimized for standard AC mains applications, providing faster clamping response and efficient energy absorption under typical surge conditions.

With a 20mm disc size, it offers high surge capability and strong durability in repetitive surge environments.

Key Electrical Characteristics:

Varistor Voltage (1mA): 360V ±10%  

Maximum Continuous Voltage: 230VAC / 300VDC  

Maximum Clamping Voltage: approx. 595V  

Peak Surge Current (8/20μs): 8kA  

Maximum Energy (2ms): 140J  

Capacitance (1kHz): approx. 800pF  

Application Focus:

AC power input protection  

Switching power supplies  

Home appliances (TV, washing machine, air conditioner)  

Industrial control systems  

LED drivers and power modules  

Design Tips:

- Select MOV voltage according to actual AC working voltage (typically 230VAC systems)  

- Ensure sufficient surge energy margin for reliability  

- Consider thermal protection (fuse or thermal cutoff) in high-risk environments  

Related MOV Varistor Models:

20D561K MOV Varistor

20D621K MOV Varistor

20D681K MOV Varistor

20D Series 20mm MOV Varistors

Replacement and Cross Reference

S20K230 (TDK EPCOS)  

B72220S0231K101 (TDK EPCOS)  

All trademarks and part numbers mentioned are for reference only.

For datasheet, quotation or sample request:

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