The Si8817DB from Vishay is a MOSFET with Continous Drain Current -2.9 A, Drain Source Resistance 61 to 320 Milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -1 to -0.4 V. Tags: Surface Mount. More details for Si8817DB can be seen below.