SK 45 WT 12 is a three-phase rectifier bridge module manufactured by Semikron. It is designed to convert alternating current (AC) to direct current (DC). It features a rated voltage of up to 1200 Vac, a power range of up to 45kW, and a plusmini wafer size of 12mm. It is designed to be used in a wide range of applications such as welding, UPS, motor drives, power supplies, and lighting. It has a maximum leakage current of 5mA at 50°C and an insulation distance of 4mm. The module is also rated for up to 4500V transient overvoltage and is RoHS-compliant.