The TK15A20D from Toshiba is a MOSFET with Continous Drain Current 15 A, Drain Source Resistance 120 to 180 Milliohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.5 to 3.5 V. Tags: Through Hole. More details for TK15A20D can be seen below.