The RD3P050SN from ROHM Semiconductor is a MOSFET with Continous Drain Current -5 to 5 A, Drain Source Resistance 135 to 205 Milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for RD3P050SN can be seen below.