Semiconductor power module with excess current protection unit has fuse unit surrounded by explosion protection material connected across conductive tracks by narrower leads than power semiconductor

摘要

A semiconductor power module (1) with an excess current protection unit comprises a housing with external load connections (42, 44, 46) and a substrate with mutually insulated metallic connection tracks of different polarity, at least one with a semiconductor power element (70, 72) with a connection of given cross-section. A fuse unit comprises a second connection element of smaller lead cross-section between two tracks or a track and a load connection and this unit is encased in a section of explosion-protecting material.