The Si1022R from Vishay is a MOSFET with Continous Drain Current 0.33 A, Drain Source Resistance 1250 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for Si1022R can be seen below.