The SM3020PSUC-TRG is a Trench MOSFET P (30 V, 43 A, 2.5 V @ 250 uA, 18 mO @ 20 A, 10 V) manufactured by Sinopower with drain-source breakdown voltage of 30V, a maximum continuous drain current of 43A, Gate-source threshold voltage of 2.5V at 250uA, maximum drain-source on-resistance of 18mO, maximum drain current of 20A under 10V and using the TO-252-2 RoHS package type.