Working principle of thermistor - introduction

 Working principle of thermistor - introduction
Thermistors are a kind of sensitive elements. The resistance value of thermistors will change with the change of temperature. Unlike ordinary fixed resistors, they belong to a kind of variable resistors and are widely used in various electronic components. Unlike resistance thermometers, which use pure metals, the materials used in thermistors are usually ceramics or polymers. Positive temperature coefficient thermistors have higher resistance values at higher temperatures, while negative temperature coefficient thermistors have lower resistance values at higher temperatures. They both belong to semiconductor devices. Thermistors usually achieve high accuracy within a limited temperature range, usually - 90 ℃~130 ℃.