The 5P40 from Goford Semiconductor is a MOSFET with Continous Drain Current -5 A, Drain Source Resistance 57 to 150 milliohm, Drain Source Breakdown Voltage -40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -3 to -1 V. Tags: Surface Mount. More details for 5P40 can be seen below.