The RM5N500IP from Rectron Semiconductor is a MOSFET with Continous Drain Current 5 A, Drain Source Resistance 1100 to 1500 milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for RM5N500IP can be seen below.