The RM50P30DF from Rectron Semiconductor is a MOSFET with Continous Drain Current -50 A, Drain Source Resistance 4.4 to 7 milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.2 to -1 V. Tags: Surface Mount. More details for RM50P30DF can be seen below.