The RM15P55LD from Rectron Semiconductor is a MOSFET with Continous Drain Current -15 A, Drain Source Resistance 60 to 75 milliohm, Drain Source Breakdown Voltage -55 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -3.5 to -1.5 V. Tags: Surface Mount. More details for RM15P55LD can be seen below.