The 1MBI50U4F-120L-50 from Fuji Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.9 to 2.15 V, DC Collector Current 75 to 150 A, DC Forward Current 75 to 150 A, Junction Temperature 150 Degree C. More details for 1MBI50U4F-120L-50 can be seen below.