The IRF630S from Vishay is a MOSFET with Continous Drain Current 5.7 to 9 A, Drain Source Resistance 0.40 milliohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for IRF630S can be seen below.