The TK4R3A06PL from Toshiba is a MOSFET with Continous Drain Current 68 A, Drain Source Resistance 3.3 to 7.2 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.5 to 2.5 V. Tags: Through Hole. More details for TK4R3A06PL can be seen below.