The RM20N150LD from Rectron Semiconductor is a MOSFET with Continous Drain Current 20 A, Drain Source Resistance 59 to 65 milliohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 to 4.5 V. Tags: Surface Mount. More details for RM20N150LD can be seen below.