The Si7998DP from Vishay is a MOSFET with Continous Drain Current 30 A, Drain Source Resistance 7.6 to 12.4 Milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for Si7998DP can be seen below.