NTC Thermistors What is a Thermistor?

- Basic Knowledge of Thermistors -

Thermistors are electronic components in which the resistance changes with the change of temperature.
Thermistors are categorized into the following 2 types according to how the resistance changes.

NTC Thermistors

Function The resistance drops as the temperature increases.
For temperature sensing, compensation and inrush current suppression.
Temperature
Characteristics
Appearance / shape

PTC Thermistors

Function The resistance remains constant up to a certain temperature, and suddenly increases at a certain critical temperature.
For overheat sensing, overcurrent protection, inrush current suppression and heater.
Temperature
Characterristics
Appearance / shape