The STGW50H65DFB2-4 from STMicroelectronics is a IGBT with Gate Emitter Voltage -30 to 30 V, Saturated Collector Emitter Voltage 1.85 V, DC Collector Current 53 to 86 A, DC Forward Current 38 to 60 A, Junction Temperature -55 to 175 Degree C. More details for STGW50H65DFB2-4 can be seen below.