When the ambient temperature is the same, the operating time of Fuser thermistor is shortened sharply with the increase of current; when the ambient temperature is relatively high, Fuser thermistor has shorter operating time and smaller holding current and operating current.

Fuser thermistor can also be used as electronic circuit components for instrument circuit temperature compensation and thermocouple cold junction temperature compensation. Using the self-heating characteristics of the NTC thermistor, automatic gain control can be realized to form an RC oscillator amplitude stabilization circuit, a delay circuit and a protection circuit. When the self-heating temperature is much higher than the ambient temperature, the resistance value is also related to the heat dissipation conditions of the environment. Therefore, the characteristic of Fuser thermistor is often used in flow meters, flow meters, gas analyzers, and thermal conductivity analysis to make special detection elements.
Fuser thermistor is mainly used for overheat protection of electrical equipment, non-contact relay, constant temperature, automatic gain control, motor start, time delay, automatic degaussing of color TV, fire alarm and temperature compensation.