The TK72E12N1 from Toshiba is a MOSFET with Continous Drain Current 179 A, Drain Source Resistance 3.6 to 4.4 milliohm, Drain Source Breakdown Voltage 120 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for TK72E12N1 can be seen below.