The Si2319DDS from Vishay is a MOSFET with Continous Drain Current -3.6 A, Drain Source Resistance 62 to 100 milliohm, Drain Source Breakdown Voltage -40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1 to -2.5 V. Tags: Surface Mount. More details for Si2319DDS can be seen below.