The Si7956DP from Vishay is a MOSFET with Continous Drain Current 4.1 A, Drain Source Resistance 88 to 115 Milliohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for Si7956DP can be seen below.