Classification of NTC thermistor ceramic resistors.infrared sensor lens price

　　1. According to the resistance temperature characteristics, it can be divided into three types:

　　①Slowly variable thermistor, this type is the most used type in actual use;

　　② The critical temperature coefficient thermistor (CRT) with VO2 as the basic component has a sharp decline in its organization at a specific temperature. This thermistor can be used to make a solid-state non-contact switch, which is widely used in automatic temperature control. , in overheating protection and refrigeration equipment;

　　③Ceramic thermal elements with linear resistance-temperature characteristics, generally for CdO-Sb2O3-WO3 series and CdO-SnO2-WO3 series ceramic materials, their resistivity and temperature are in a wide temperature range (-100~ 300℃). The linear relationship, due to the linearization of the resistance-temperature characteristic, makes the measurement convenient and easy to digitize.

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