> In the Digikey catalog, 5w zeners are axial-lead air-cooled devices.
>
> >
> //They surely are, and should be. They're not DO-5's however. The "DO"
> number only means "diode outline" and the number that follows it has
> nothing to do with power, dissipation, or any other rating. They were
> just issued sequentially, starting with DO-1.
>
> -WB2WIK/6
> >
> >> > [Steve Katz] Hi Rich. Case temp of a DO-5 stud,
> >>
> >> I have never seen anything smaller than 10w in a stud mount. 3A axial
> >> lead rectifiers are in a DO-5 case.
> >>
> > ??? Not sure what you mean, here. The DO-5 zener devices I use are
> >normally rated 50W at 55 degrees (C) Tc. Readily available from many
> >sources for a few dollars. The advantage is their high peak current
> rating,
> >usually hundreds of Amperes for a low-value Vz. 3A axial lead rectifiers
> >aren't DO-5, they're usually DO-2, DO-41, DO-42, etc.
> >
> > -Steve WB2WIK/6
> >
> >
> >
> >> - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
> >> www.vcnet.com/measures.
> >> end
> >_______________________________________________
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> >Amps@contesting.com
> >http://lists.contesting.com/mailman/listinfo/amps
> >
>
>
> - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
> www.vcnet.com/measures.
> end
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