The D3S280N65B-U from D3 Semiconductor is a MOSFET with Continous Drain Current 8.9 to 14.1 A, Drain Source Resistance 267 to 630 milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.3 to 4.5 V. Tags: Through Hole. More details for D3S280N65B-U can be seen below.