What is NTC thermistor
Thermistors are temperature sensing elements made of semiconductor materials that have been sintered to show large resistance changes proportional to small changes in temperature.
The resistance can be measured by using a small amount of measured direct current or thermistor to measure the resulting voltage drop.
These solid-state temperature sensors are actually like temperature-sensitive resistors. This is the abbreviation of the name, a clear combination of the two words heat and resistance.
Generally, thermistors are composed of sintered ceramics that are composed of highly sensitive materials and have consistent resistance-temperature characteristics.
NTC thermistor is a non-linear resistance, and its resistance characteristics will change with temperature. The resistance of NTC will decrease with increasing temperature. The way the resistance decreases is related to the constant called β or ß in the electronics industry. Beta is measured in °K.