The Si5908DC from Vishay is a MOSFET with Continous Drain Current 5.9 A, Drain Source Resistance 32 to 52 Milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.4 to 1 V. Tags: Surface Mount. More details for Si5908DC can be seen below.