The FS450R17OP4 from Infineon Technologies is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.70 to 2.20 V, DC Collector Current 450 A, Peak Collector Current 900 A, DC Forward Current 450 A. More details for FS450R17OP4 can be seen below.