Sicherung in Kartenbauart und Verfahren zu ihrer Herstellung

摘要

A card type fuse, aimed at reducing production costs and improving a forming precision of an exothermic fusing portion. The card type fuse comprises an insulation substratum (1), fuse circuits (2) arranged on the insulation substratum and having a narrow exothermic fusing portion, and a cover layer (3) covering fuse circuits. The cover layer is made of a heat resisting film. The fuse circuits are printed on the heat resisting film by means of a conductive paste. The insulation substratum is made of a heat resisting thermoplastic resin suitable for SMT. The insulation substratum is integrally formed on the side having the fuse circuits on the heat resisting film.