To provide a terminal arrangement, for a semiconductor power converter apparatus, which effectively suppresses surge voltage, caused by stray inductance of the internal wiring, with conductor bars and snubber capacitors connected between DC input terminals.
Pairs of positive and negative terminals 2, 3 (2, 3) are arranged on the edge portions of the left and right sides of a rectangular upper face of the package 1, of a semiconductor apparatus for converting DC input to AC output, into which a plurality of semiconductor chips are incorporated, with the positive terminals 2, 2 and the negative terminals 3, 3 opposed facing to each other respectively. AC output terminals 4 are aligned on one of the other pair of the sides (upper side) and control terminals 5 on another side of the other side pair. Straight conductor bars 12, 12 are externally connected above the upper surface of the package 1 between the positive terminals 2, 2 and between the negative terminals 3, 3.