Ptc Thermistor Circuit Diagram. The thermistor has to be connected to a control circuit which can convert the resistance signal which again has to disconnect the motor. The socket side includes a ptc thermistor for overcurrent protection.
These ptc thermistors are used a switch in motor starting circuits degaussing circuits etc. The diagram below shows an example of a protection circuit that uses a replaceable plug in spd. The plug side includes an arrestor and a varistor for overvoltage protection.
Ntc thermistors are the most commonly used especially the 10kω ntc thermistor and along with an addition series resistor r s can be used as part of a simple potential divider circuit.
Tdk offers a comprehensive lineup of ptc thermistors for telecom applications. Ptc thermistor as fuse. Ceramic ptc thermistors are a replacement to conventional fuses to protect loads such as motors transformers etc. These ptc thermistors are used a switch in motor starting circuits degaussing circuits etc.
