Patent ID: 6932928

Claim:
A method of producing a resistor device, said resistor device comprising a PTC-polymer element and a varistor element, said PTC-polymer element and said varistor element being, at least in part, electrically parallel to each other, wherein said PTC-polymer element and said varistor element are fabricated by molding PTC-polymer material and varistor polymer material during one common molding process into one common mold, and wherein, during the molding process, a first one of the PTC-polymer material and the varistor polymer material is introduced into the mold as a first material and is cooled down by the mold to increase its viscosity, and the second one of the PCT-polymer material and the varistor polymer material is introduced into the mold as a second material to contact a still fluid surface of the first one of the PTC-polymer material and the varistor polymer material.