EV heating element self-regulates, ensuring stability

Whereas cars with combustion engines can use waste heat for heating the passenger compartment, electric vehicles require electrical heating. In electroceramic components with Positive Temperature Coefficient (PTC) characteristics, the electrical resistance increases as a function of the rising temperature, creating a self-regulating effect.

The flow of current increases not only the temperature of these ceramic elements, but also their resistance, thereby limiting the current and establishing a stable equilibrium. Depending on customer requirements, the EPCOS PTC heating elements can be manufactured in a variety of geometries and with different electrical and thermal properties.