The TK13A50DA from Toshiba is a MOSFET with Continous Drain Current 12.5 A, Drain Source Resistance 390 to 470 milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for TK13A50DA can be seen below.