WHPTC、WHSMD已广泛应用于汽车电子电动元件中电机堵转保护和驱动器短路保护中，其中WHSMD1812系列、WH16系列、WH30系列可广泛应用于各种车用雨刮器电机和驱动器的过流、过载保护，为您的设计提供保障，使您的出行更安全。
“万和”牌自恢复保险丝对雨刮器电机保护和驱动器保护提供优质的安全保障，适用的自恢复保险丝有WHSMD1812系列、WH16系列、WH30系列。
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| 符号Sign | 说明 | Definition |
| Ih |
WHPTC在25℃环境温度下的最大 工作电流 |
Hold current-maximum current at which the device will not trip at 25℃ |
| It | WHPTC在25℃环境温度下启动保护的最小电流 | Trip current-minimum current at which the device will always trip at 25℃ |
| Vmax | WHPTC的最大工作电压 | Maximum voltage at which the device will not trip |
| Vmaxi | WHPTC在阻断状态下所承受的最大电压 | Maximum voltage device can withstand without damage at it rated current |
| Imax | WHPTC能承受的最大电流 | Maximum fault current device can withstand without damage at rated voltage |
| Rmin | WHPTC工作前的初始最小阻值 | Minimum device resistance at 25℃ prior to tripping |
| Rmax | WHPTC工作前的初始最大阻值 | Maximum device resistance at 25℃ prior to tripping |
| Figure | 图示 | The Figure of WHPTC |
| Lead | 导线尺寸 | Lead diameter |
| WH Series | -20℃ | 0℃ | 25℃ | 30℃ | 40℃ | 50℃ | 60℃ | 70℃ | 85℃ |
| WH6 | 130% | 115% | 100% | 91% | 83% | 77% | 68% | 61% | 52% |
| WH16 | 132% | 120% | 100% | 96% | 88% | 80% | 71% | 61% | 47% |
| WH30 | 130% | 115% | 100% | 91% | 83% | 77% | 68% | 61% | 52% |
| WH60 | 136% | 119% | 100% | 90% | 81% | 72% | 63% | 54% | 40% |
| WH130 | 136% | 119% | 100% | 92% | 81% | 72% | 63% | 54% | 40% |
| WH250 | 132% | 117% | 100% | 91% | 85% | 77% | 68% | 61% | 48% |
| WH600 | 138% | 119% | 100% | 92% | 83% | 73% | 64% | 55% | 42% |
