The FS300R12OE4 from Infineon Technologies is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.75 to 2.10 V, DC Collector Current 300 A, Peak Collector Current 600 A, DC Forward Current 300 A. More details for FS300R12OE4 can be seen below.