| Silver bare chip | |
| Size | φ31.8 |
| Packing size | φ32.5 |
| MOV(metal oxide varistors) |
 |
| The main technical index | |||
| Model specification | 34S511K | 34S621K | 34S751K |
| Packing size | 459~561 | 558～682 | 675～825 |
| Maximum continuous operating voltage | 320VAC | 385VAC | 460VAC |
| Dc leakage current | ≤15μA | ||
| Nominal discharge current | 15kA | ||
| Maximum discharge current | 30 kA | ||
| Maximum limiting voltage | ≤1.4kV（at10kA） | ≤1.6kV (at10kA) | ≤1.8kV (at10kA) |
| Electrode surface coating | Silering | ||
| Thichness tmax(mm) | 6.1mm | 6.6mm | 6.6mm |
| Storage conditions | 1) Storage temperature:-10℃～+40℃ 2) Relative humidity:＜75%RH 3) This product can’t place in a bare place and can’t be stored in an environment exposed to corrosive gases or direct sunlight. | ||
| Operating temperature | -40℃～+85℃ | ||
| Sign | Can laser marking on the surface of mov(packing material) | ||
| Production range and parameters | |||||||||
| Type | Varistor voltage V1mA V | Tolerance range V1mA % | Maximum allowable voltage | Clamping voltage(Max.) | Maximum Peak Current(8/20μs) | Nominal Peak Current(8/20μs) | Energy（2ms） | ||
| U ac V | U dc V | U p V | I A | Imax KA | In KA | E J | |||
| WRA25D471K | 470 | ±10 | 300 | 385 | 775 | 200 | 30 | 15 | 390 |
| WRA25D511K | 510 | ±10 | 320 | 415 | 845 | 200 | 30 | 15 | 430 |
| WRA25D561K | 560 | ±10 | 345 | 460 | 925 | 200 | 30 | 15 | 490 |
| WRA25D621K | 620 | ±10 | 385 | 505 | 1025 | 200 | 30 | 15 | 550 |
| WRA25D681K | 680 | ±10 | 420 | 560 | 1120 | 200 | 30 | 15 | 600 |
| WRA25D711K | 710 | ±10 | 440 | 585 | 1180 | 200 | 30 | 15 | 630 |
| WRA25D751K | 750 | ±10 | 460 | 615 | 1240 | 200 | 30 | 15 | 660 |
| WRA25D821K | 820 | ±10 | 510 | 670 | 1355 | 200 | 30 | 15 | 680 |
