The 2N3819 is a symmetrical FET. source and drain are interchangeable.
Ken
Ken
--- In cgs_synth@yahoogroups.com, "woof_dave" <David.Woof@...> wrote:
>
> Just stuffing my boards, and I noticed the PCB marking for the source and drain of the 2N3819 is reversed from what I see on my Fairchild 2N3819:
>
> http://www.ee.buffalo.edu/courses/elab/2N3819.pdf
>
> ...so I'm not clear now which way round this should go...
>
> If I mount it matching the outline on the PCB, the D & S legs will need to be reversed....
> No mention anywhere though of this part needing mounting backwards, so can anyone shed any light?
>