The TK22V65X5 from Toshiba is a MOSFET with Continous Drain Current 22 A, Drain Source Resistance 140 to 170 milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 4.5 V. Tags: Surface Mount. More details for TK22V65X5 can be seen below.