OMRON's MOSFET relays currently lead the industry in solid state relay technology, utilizing an input LED, photodiode dome array (PDA) used as photocoupler, and MOSFET chip in the load switching current. The G3VM series of relays offer many benefits including low maintenance costs, small footprint, and high-speed switching. As a suitable replacement for a mechanical relay, MOSFET relays are displacing reed relays as well as relays containing mercury.