The MCU30N02 from Micro Commercial Components is a MOSFET with Continous Drain Current 30 A, Drain Source Resistance 5.6 to 14 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.45 to 1 V. Tags: Surface Mount. More details for MCU30N02 can be seen below.