The MCG4D8N04Y-TP from Micro Commercial Components is a MOSFET with Continous Drain Current 53 to 75 A, Drain Source Resistance 3.8 to 4.8 milli-ohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.0 to 4.0 V. Tags: Surface Mount. More details for MCG4D8N04Y-TP can be seen below.