This part is a kind of semiconductor called 2MBI650VXA-170E-50.

Function of this product has IGBT Module.

Manufacturers : Fuji Electric

Image and pinout :

Some of the text within the PDF file :

http://www.fujielectric.com/products/semiconductor/ 2MBI650VXA-170E-50 IGBT Modules IGBT MODULE (V series) 1700V / 650A / 2 in one package Features High speed switching Voltage drive Low Inductance module structure Applications Inverter for Motor Drive AC and DC Servo Drive Amplifier Uninterruptible Power Supply Industrial machines, such as Welding machines Maximum Ratings and Characteristics Absolute Maximum Ratings (at Tc=25°C unless otherwise specified) Items Collector-Emitter voltage Symbols VCES Conditions Gate-Emitter voltage VGES Inverter Ic Continuous Collector current Ic pulse -Ic -Ic pulse Collector power dissipation Pc Junction temperature Tj Operating junction temperature (under switching conditions) Tjop Case temperature TC Storage temperature Tstg [ ... ]

2MBI650VXA-170E-50 PDF Datasheet Download