The 6MBI300V-120-50 from Fuji Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.75 to 2.65 V, DC Collector Current 300 to 600 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.6 uA. More details for 6MBI300V-120-50 can be seen below.