Expert Thermocouple & RTD &Temperature Sensor Manufacturer.

The difference between the thermistor and varistor1

2021-01-11

JVTIA

299

1, thermistor: is a kind of resistance change with temperature change and produce resistance, widely used in the thermal protection components need or control of the products. Used in power supply products in high power amplifier tube thermal protection, when the temperature of the tube is increased thermistor resistance changes using shunt resistance network work input to the tube current decreases, and thus reduce amplifier output power decrease fever, after such amplifier tube thermal equilibrium is reached stable output, so that the tube have been protected.

2, pressure sensitive resistance: is a kind of resistance changes with the voltage change of resistance, widely used in the need for constant voltage protection and input products. Used in power supply products in high power amplifier input protection and control, the current voltage changes, pressure sensitive resistance tolerance changes using partial pressure resistance network work that input to the voltage stability of the amplifier tube so that stable output amplifier tube, this tube is stable output and protected.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor

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