What are the general inspection items of ntc thermistor

　　An NTC thermistor is a very simple temperature sensor that is very common in consumer electronics. NTC thermistor is a typical temperature-sensitive semiconductor resistor, and its resistance decreases stepwise with the increase of temperature.

　　Classification of NTC thermistors (different by application)

　　Power NTC Thermistor

　　Compensated NTC Thermistor

　　Temperature measurement type NTC thermistor

　　The role of NTC thermistor

　　Inrush current suppression, temperature measurement, temperature compensation, liquid level measurement, overheat protection.

　　NTC thermistor detection items

　　NTC thermistors generally need to do visual inspection and dimensional inspection, zero-power resistance value, B value or resistance ratio, insulation resistance, withstand voltage test, resistance/temperature characteristic test, dissipation coefficient detection, thermal time constant caused by changes in ambient temperature test, thermal time constant test with natural post-cooling, terminal strength test, rapid temperature change test, vibration test, solder heat resistance test, free drop test, solderability test, thermal shock, cold, dry heat, steady-state damp heat , Continuous application of maximum current durability at room temperature, durability under B3 and Pmax, upper limit category temperature durability, climate sequence, component solvent resistance, logo solvent resistance, salt spray test and other tests.

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NTC critical temperature thermistor resistance

Z002&004

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