If they did that , what would be the point of even voting in future elections ? <| sep |> Thanks , this is great ! I should have clarified 1 . The switching frequency will be very low . This is controlling a water valve . It will be on for a few seconds and off for minutes or hours at a time . 2 . I ' d like a part with throughhole mounting , for breadboarding and my oldskool soldering skills . That limits the selection quite a bit more a lot of the low voltage parts are surface mount . 3 . Overkill is fine as long as there ' s no downside other than cost the shipping will cost more than the parts anyway ! 4 . I will definitely use a pulldown resistor and a flyback diode as seems to be standard in this type of circuit . I ' m confused by your notes on Figure 1 The 3 V Vgs line looks like it starts at 6 A on the Id axis and goes up from there . Where do I read 500 mA on there ?