NTP NTC 熱敏 電阻 Positive Temperature Coefficient Negative positive temperature coefficient resistor

https://zh.wikipedia.org/wiki/%E7%83%AD%E6%95%8F%E7%94%B5%E9%98%BB
https://en.wikipedia.org/wiki/Thermistor
https://zh.wikipedia.org/wiki/%E6%B9%A7%E6%B5%AA%E9%9B%BB%E6%B5%81%E9%99%90%E5%88%B6%E5%99%A8
https://en.wikipedia.org/wiki/Inrush_current_limiter
負溫度係數Negative Temperature Coefficient (NTC)
正溫度係數（PTC，Positive Temperature Coefficient）
Positive Temperature Coefficient (PTC)
臨界溫度熱敏電阻CTR，Critical Temperature Resistance）

main distribution frame  Overvoltage protection 

MOV based modular solid-state switches and a concentrated
壓敏電阻Metal Oxide Varistors  MOV Metal Voltage Dependent Resistor

https://embeddedschool.in/list-types-of-protection-devices/

tvs over Voltage  protection component
tvs over Voltage  protection

Over-Voltage and Over-Current Protection Explained over Voltage  protection component Components such as MOV, GDT, SPG (Spark Gap Protectors) and TSS (Thyristor Surge Suppressors) serve as the primary form of protection against overvoltage. TVS and ESD