The TK28V65W from Toshiba is a MOSFET with Continous Drain Current 27.6 A, Drain Source Resistance 99 to 120 Milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.5 to 3.5 V. Tags: Surface Mount. More details for TK28V65W can be seen below.