The 2MBI550VX-170-50 from Fuji Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 2.15 to 3.35 V, DC Collector Current 550 to 1100 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.6 uA. More details for 2MBI550VX-170-50 can be seen below.