The RM15N650HD from Rectron Semiconductor is a MOSFET with Continous Drain Current 15 A, Drain Source Resistance 230 to 260 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: Surface Mount. More details for RM15N650HD can be seen below.