The PRM4R0N03N3 from PFC Device is a MOSFET with Continous Drain Current 30 to 70 A, Drain Source Resistance 3.7 to 5.8 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 2.5 V. Tags: Surface Mount. More details for PRM4R0N03N3 can be seen below.