The TK40E10N1 from Toshiba is a MOSFET with Continous Drain Current 90 A, Drain Source Resistance 6.8 to 8.2 Milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for TK40E10N1 can be seen below.