silicon varistor

例句：

1. 1.The silicon varistor is used toprotect the circuit from overheating.
   硅压敏电阻用于保护电路免受过热。
2. 2. Inthis circuit, the silicon varistoris a crucial component for fault detection.
   在这个电路中，硅压敏电阻是故障检测的关键元件。
3. 3. The silicon varistorhas a high resistance when it'snot damaged, which helps to prevent shortcircuits.
   当硅压敏电阻未受损时，它具有高电阻，这有助于防止短路。