The IRFI640G from Vishay is a MOSFET with Continous Drain Current 9.8 A, Drain Source Resistance 180 milliohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for IRFI640G can be seen below.