The TK56A12N1 from Toshiba is a MOSFET with Continous Drain Current 112 A, Drain Source Resistance 6.2 to 7.2 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 TK56A12N1 can be seen below.