The TK40A06N1 from Toshiba is a MOSFET with Continous Drain Current 60 A, Drain Source Resistance 8.4 to 10.4 Milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for TK40A06N1 can be seen below.