The RM45P20D3 from Rectron Semiconductor is a MOSFET with Continous Drain Current -45 A, Drain Source Resistance 5.8 to 12 milliohm, Drain Source Breakdown Voltage -19 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -1 to -0.4 V. Tags: Surface Mount. More details for RM45P20D3 can be seen below.