The AOK40B120M1 from Alpha & Omega Semiconductor is a IGBT with Gate Emitter Voltage -30 to 30 V, Saturated Collector Emitter Voltage 1.95 to 2.55 V, DC Collector Current 40 to 80 A, Peak Collector Current 120 A, DC Forward Current 40 to 80 A. More details for AOK40B120M1 can be seen below.