A thermistor is a sensing resistor component (NTC/PTC) whose resistance changes with temperature, making it suitable for temperature detection, temperature compensation, and related control applications. Compared with ordinary fixed resistors, thermistors respond more noticeably to temperature changes and are therefore widely used in electronic devices and temperature monitoring systems.
The term“thermistor”is formed from the words thermal and resistor, reflecting its function as a resistor with temperature-sensitive characteristics.