The Si7820DN from Vishay is a MOSFET with Continous Drain Current 2.6 A, Drain Source Resistance 200 to 250 Milliohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for Si7820DN can be seen below.