The 6MBI550V-120-50 from Fuji Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.85 to 2.95 V, DC Collector Current 550 to 1100 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.6 uA. More details for 6MBI550V-120-50 can be seen below.