VARISTOR is a polycrystalline ceramic body consisting of semi conducting zinc-oxide (ZnO) grains and second phase(Including) Bi2O3,Sb2O3, MnO, CoO, etc) Located at the joints of the grains, it’s called varistor (variable resistor)
40D
Introduction
General specifications
- Size _ 40D
- Varistors Voltage_200Vdc to 1800Vdc
- Max. Energy (10/1000uS)_370Joule to 1800Joule
- Working Temp. Range_-40℃to+85℃
- Max. Peak Current (8/20uS)_20000Amps(2 times) to 40000Amps(1 time)
- Varistors Tolerance_±10%
Part numbering system
Example
| VCR | 40 | D | 471 | K | SN | J |
| ①~③ | ④~⑤ | ⑥ | ⑦~⑨ | ⑩ | ⑪~⑫ | ⑬ |
①~③
| Code | Series |
| VCR |
④~⑤
| Code | ELEMENT DIA. |
| 40 | ∮40.0mm |
⑤
| Code | Type |
| D | Disc |
⑦~⑨
| Code | Voltage |
| 331 | 330V |
| 122 | 1200V |
⑩
| Code | Tolerance |
| K | ±10% |
⑪~⑫
| Code | Lead style |
| DM | M Style |
| DN | N Style |
⑬
| Code | Extra code |
| − | Standard |
| J | High Surge |
Download
| Name | |
|---|---|
| 40D Series Specification |  40D_20221208.pdf |
| Dimension (32D~53D Series) | Dimension-32-53D_20140101.pdf |