Especially when electromechanical relays' lifetime is to short to fulfill the application's requirements, the advantages these new photoMOS relays offer come into play. By employing modern MOSFET transistors for the output of the AQV251G, it is possible to realize a typical ON-resistance of just 0,035#. Because there is negligible loss at the output, the maximum continuous load current at room temperature can be specified with a current of 3.5A.