The Si7540ADP from Vishay is a MOSFET with Continous Drain Current 8 A, Drain Source Resistance 11.5 to 43 Milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -1.4 to 1.4 V. Tags: Surface Mount. More details for Si7540ADP can be seen below.