The 2SK1317 from Renesas is a MOSFET with Continous Drain Current 2.5 A, Drain Source Resistance 9000 to 12000 milliohm, Drain Source Breakdown Voltage 1500 V, Gate Source Voltage -20 to 20 V, Power Dissipation 100 W. Tags: Through Hole. More details for 2SK1317 can be seen below.