What does PTC mean in a car?

[DeMia]

PTC in a car refers to the automotive PTC heater. PTC is the abbreviation for Positive Temperature Coefficient, which denotes semiconductor materials or components with a large positive temperature coefficient. It is used to preheat the engine in winter and provide heating for the truck cab or passenger compartment. It can be directly fixed on the inner wall of the vaporization chamber to heat the gasoline inside, rapidly increasing its temperature, thereby improving the fuel combustion and vaporization effect. Due to the automatic temperature control and constant heating characteristics of PTC thermistor elements, these PTC heater components operate in a contactless state when controlling temperature, making them highly suitable for use in cars where conditions constantly change, especially in bumpy environments.