Sensistor

Sensistor is a resistor whose resistance changes with temperature.

Example of electronic circuit with the sensistor Rs

The resistance increases exponentially with temperature,^[1] that is the temperature coefficient is positive (e.g. 0.7% per degree Celsius).^[2]

Sensistors are used in electronic circuits for compensation of temperature influence or as sensors of temperature for other circuits.^[3]

Sensistors are made by using very heavily doped semiconductors so that their operation is similar to PTC-type thermistors. However, very heavily doped semiconductor behaves more like a metal^[4] and the resistance change is more gradual than it is the case for other PTC thermistors.

See also

• thermistor