Negative Temperature Coefficient Thermistor

Negative Temperature Coefficient Thermistor temperature measurements

There are mainly negative temperature coefficient thermistors. We usually use metal manganese compounds as the main material, mixed with other two or more materials such as copper, silicon, cobalt, iron, nickel, zinc, and then prepared. A semiconducting ceramic.

In addition to Mn3O4 as the main body, there are also NTC thermistors with SiC, SnSe, and TaN as the main material.

The resistance value of an NTC thermistor will decrease as the temperature increases, and a curve can be obtained by "drawing points" on the coordinates of temperature and resistance value, which is also called "Curie curve". The change of its resistance value can be caused by the external ambient temperature, or it can be caused by the heating caused by the current in the circuit passing through the NTC thermistor. Because of its negative temperature coefficient characteristics, its characteristics affect the resistance value, and the resistance value is related to the current, so many applications have been derived in electronic circuits.

There are mainly four types: surge current suppression type, temperature measurement type, temperature control type, temperature compensation type, and temperature sensing type.

1,Power adapter.

2,Mobile phone charger.

3,Electric vehicle charger

4,UPS power supply

5,Small household appliances with temperature display

6,LED control circuit

7,Ballast

8,White goods

9,Car charging pile

10Car charger

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