NTC negative temperature coefficient thermistor works
NTC is the abbreviation of Negative Temperature Coefficient, which means a negative temperature coefficient. It refers to a semiconductor material or component with a large negative temperature coefficient. The so-called NTC thermistor is a negative temperature coefficient thermistor. It is made of a metal oxide such as manganese, cobalt, nickel and copper, and is made by a ceramic process. These metal oxide materials all have semiconductor properties because they are completely similar in electrical conductivity to semiconductor materials such as germanium and silicon. When the temperature is low, the number of carriers (electrons and holes) of these oxide materials is small, so the resistance value thereof is high; as the temperature increases, the number of carriers increases, so the resistance value decreases. The NTC thermistor varies from 100 to 1000000 ohms at room temperature and has a temperature coefficient of -2% to -6.5%. NTC thermistor NTC thermistor is widely used in temperature measurement, temperature control, temperature compensation and so on.