The TK39A60W from Toshiba is a MOSFET with Continous Drain Current 38.8 A, Drain Source Resistance 55 to 65 Milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.7 to 3.7 V. Tags: Through Hole. More details for TK39A60W can be seen below.