Re: Why so many caps?

From: Spehro Pefhany (speffSNIP_at_interlogDOTyou.knowwhat)
Date: 07/14/04 

Date: Wed, 14 Jul 2004 12:07:36 GMT

On Wed, 14 Jul 2004 09:14:54 GMT, the renowned "alpha_uma"
<none_such@home.com> wrote:

>"Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> wrote in message
>news:gh05f0hh0pnj10mcbit3h2qiqbkacfkrjr@4ax.com...
>>
>> They want to use 0.50 worth of e-caps instead of $20 worth of ceramic
>> caps.
>>
>
>If money is of no concern (big IF, I know, but it's just hypothetical), and
>if there are ceramic caps that would meet the specs, would you use ceramics
>instead of electrolytics on a motherboard? In the current state of
>consumer-oriented motherboard designs, are there (non-finanacially related)
>reasons where electrolytics must be used in circuits?
> Al-U

I really can't think of any, particularly in a motherboard that
doesn't have to operate below 0°C. Parts in the 100uF-330uF 6.3V range
are available. They are the weakest link in motherboard life (not
counting obsolescence and processor fans).

Best regards,
Spehro Pefhany 

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