The FS500R17OE4D_B81 from Infineon Technologies is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.95 to 2.45 V, DC Collector Current 500 A, Peak Collector Current 1000 A, DC Forward Current 500 A. More details for FS500R17OE4D_B81 can be seen below.