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| Type | Power Rating (at70°C) | Resistance Range | Maximum Working Voltage* |
Maximum Overload Voltage** |
Maximum Permissible SurgeVoltage |
|
| ±1% | ±5% | |||||
| SWM100 | 1W | 1Ω~2KΩ |
√PxR | 2.5x√PxR | 7.5KV | |
| SWM200 | 2W | 1Ω~2KΩ |
√PxR | 2.5x√PxR | 8.5KV | |
| SWM300 | 3W | 1Ω~2KΩ |
√PxR | 2.5x√PxR | 9KV | |
| SWM400 | 4W | 1Ω~2KΩ |
√PxR | 2.5x√PxR | 10KV | |
For a better life cycle under normal usage, 50% of the rated power is recommended
* Rated Continuous Maximum Working Voltage (RCWV) should be determined from RCWV =√Power Rating x Resistance Values Max. RCWV listed above.
** Short-time Overload (STOL) test should be determined from STOL=√2.5 x Power Rating x Resistance Values or maximum overload voltage listed above, whichever is lower.
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