[sdiy] Diode reverse polarity protection revisited

[David G. Dixon]

> In anti-parallel I get no voltage drop (advantage) but when the input
> voltage is reversed I get a) -1V at the Cathode and b) within seconds the
> diode is too hot to touch.
> 
> ...can someone explain the benefit to this method over running it in
> Series? Right now I'm not seeing it.

Refer to my last post.  This is exactly what the polyfuses protect against.