I haven't gone through my backlog of e-mails entirely yet, but people seem
to be calling small, axial-leaded diode products "DO-5" for some reason.
They're not. DO-5 is a 1/4" stud-mount diode outline...
WB2WIK/6
"If everything seems under control, you're just not going fast enough." -
Mario Andretti
> -----Original Message-----
> From: 2 [SMTP:2@vc.net]
> Sent: Thursday, July 18, 2002 6:09 AM
> To: AMPS; Douglas R Snowden
> Subject: Re: [Amps] Bias Zener Diodes In Parallel ?
>
> ** A DO-5 case 3A rectifier dissipates c. 2.2W at 3A. Since rectifier
> junctions typically have higher allowable junction temps than zener
> junctions, running a DO-5 case zener at 4.5w is bananas.
>
> >> You should have enough headroom. That's only .8^2 * 5.6= 3.6 watts per
> >> diode. Maybe the heatsink is too small, or mounting is incorrect.
> >
> >Woops. Shouldn't be a square in there. .8 times 5.6 at about 4.5W is
> >correct. 73, Tom W8JI
> >W8JI@contesting.com
> >
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> >
>
>
> - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
> www.vcnet.com/measures.
> end
>
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