The RM13P40S8 from Rectron Semiconductor is a MOSFET with Continous Drain Current -13 A, Drain Source Resistance 12 to 15 milliohm, Drain Source Breakdown Voltage -40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.5 to -1.3 V. Tags: Surface Mount. More details for RM13P40S8 can be seen below.