The RAF040P01 from ROHM Semiconductor is a MOSFET with Continous Drain Current -4 to 4 A, Drain Source Resistance 22 to 68 Milliohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -8 to 0 V, Gate Source Threshold Voltage -3 to -1 V. Tags: Surface Mount. More details for RAF040P01 can be seen below.