ROHM MCR03EZHJ683 is a surface-mount N-Channel MOSFET. It is a 30V MOSFET, meaning it will switch loads up to 30V, and as it is an N-Channel MOSFET this implies it is an enhancement mode MOSFET. It has a maximum current rating of 6.8A, and a maximum drain-source resistance of 0.045Ohms. It is an industry standard package type with an approximate overall size of 3.20mm x 1.80mm. This makes it suitable for applications where space is limited or surface-mount technology is required.