PSIS25/12 with Brake chopper is an electronic part manufactured by Powersem. It has a maximum rated voltage of 1.2kV and a rated current of 21A. The device also features a peak current of 35A and is part of the Eco-Pac 2 series. It is soldered and its construction makes it suitable for applications where power needs to be switched quickly and without much arcing or sparking.