The IRFI9634G from Vishay is a MOSFET with Continous Drain Current -4.1 A, Drain Source Resistance 1000 milliohm, Drain Source Breakdown Voltage -250 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2 to -4 V. Tags: Through Hole. More details for IRFI9634G can be seen below.