The 4MBI600VC-120-50 from Fuji Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.85 to 2.35 V, DC Collector Current 600 to 1200 A, DC Forward Current 600 to 1200 A, Junction Temperature 175 Degree C. More details for 4MBI600VC-120-50 can be seen below.