The STGW40H120F2 from STMicroelectronics is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 2.1 V, DC Collector Current 40 to 80 A, Junction Temperature -55 to 175 Degree C, Gate Emitter Leakage Current 0.25 uA. More details for STGW40H120F2 can be seen below.