The TK14N65W from Toshiba is a MOSFET with Continous Drain Current 13.7 A, Drain Source Resistance 220 to 250 milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.5 to 3.5 V. Tags: Through Hole. More details for TK14N65W can be seen below.