The TW045N120C from Toshiba is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 45 to 67 milliohm, Drain Source Breakdown Voltage 1200 V, Gate Source Voltage -10 to 25 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Through Hole. More details for TW045N120C can be seen below.