Something along the lines of an AQY221xx which is essentially an optical photoMOS switch activated by a current through a LED. The important DC parameters would the LED current and voltage drop, in addition to the ON and OFF resistance of the MOS FET and Drain to Source Output Cap should also be possible to set. This is an optically isolated device so a breakdown voltage is extra credit. The switching times for these are pretty fast for a switch (10’s to 100’s of uS) with no bounce, so that is also extra credit.