The RM48N100D3 from Rectron Semiconductor is a MOSFET with Continous Drain Current 48 A, Drain Source Resistance 11.3 to 22 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -12 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for RM48N100D3 can be seen below.