The AOK20B135D1 from Alpha & Omega Semiconductor is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.57 to 2 V, DC Collector Current 20 to 40 A, Peak Collector Current 80 A, DC Forward Current 20 to 40 A. More details for AOK20B135D1 can be seen below.