The RSR025N05 from ROHM Semiconductor is a MOSFET with Continous Drain Current -2.5 to 2.5 A, Drain Source Resistance 70 to 160 Milliohm, Drain Source Breakdown Voltage 45 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for RSR025N05 can be seen below.