PTC component is called PTC critesister ceramics , it is a kind of the semiconductor function ceramics having the pure temperature modulus. Before PTC changing the temperature, electric resistance follow the temperature power-up but come down, between the temperature of temperature from the change temperature to heat out of control, rise but notable electric resistance increase with the temperature, the PTC component has constant temperature fever heat , natural life-span is long , energy conservation , fury , safe function are good , calorific capacity a series of tradition such as easy to measure and small by mains input effect heats merit had no way to compari-son by component with electric energy. Now the PTC component already has applied to a lot of fields such as domestic appliances , elec-tric power facilities , electronic equipment and automobile industry broadly.
      PTC ceramics heater element may need fabrication to become the various form and to be unlike specification in the light of. Comm-on having makes movie consistent , the rectangle , strong point are bar-like.