The FGW40N120WD from Fuji Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 2 to 2.6 V, DC Collector Current 40 to 65 A, DC Forward Current 20 to 36 A, Junction Temperature -40 to 175 Degree C. More details for FGW40N120WD can be seen below.