The RM80N80HD from Rectron Semiconductor is a MOSFET with Continous Drain Current 80 A, Drain Source Resistance 7.2 to 8.5 milliohm, Drain Source Breakdown Voltage 80 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for RM80N80HD can be seen below.