FW: [Amps] Bias Zener Diodes In Parallel ?

[Steve Katz]

> 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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> 
> 
> -  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, 
> www.vcnet.com/measures.  
> end