The Si7220DN from Vishay is a MOSFET with Continous Drain Current 4.8 A, Drain Source Resistance 48 to 75 Milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for Si7220DN can be seen below.