The IRFI9520G from Vishay is a MOSFET with Continous Drain Current -5.2 A, Drain Source Resistance 600 milliohm, Drain Source Breakdown Voltage -100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2 to -4 V. Tags: Through Hole. More details for IRFI9520G can be seen below.