[Elecraft] Capacitors...simple yet complex question

Tue Dec 24 11:27:00 2002

One difference is due to the max temperature, something like 85 C or 105
C. Another one is the ESR - Equivalent Series Resistance - the smaller
the better, but also often larger and more expensive.

Sverre
LA3ZA
www.qsl.net/la3za

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Bob Tellefsen
> Sent: 24. desember 2002 00:30
> To: Timothy A. Raymer; [email protected]
> Subject: RE: [Elecraft] Capacitors...simple yet complex question
> 
> 
> Tim
> I believe the difference in size is due to voltage ratings. 
> Small caps usually have a low voltage rating.  High voltage 
> caps are much larger. 73, Bob N6WG
> 
> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]]On > Behalf Of Timothy A.
Raymer
> Sent: Monday, December 23, 2002 12:45 PM
> To: [email protected]
> Subject: [Elecraft] Capacitors...simple yet complex question
> 
> 
> Kind Listees,
> 
> I have a question about capacitors.  When working on two 
> power supplies 
> recently, I came across two types of capacitors.  One type 
> are the regular 
> axial or radial Electrotic Caps that are, for example, 4700uF 
> Capacitors.  Then, there are the Computer grade monster cans 
> that are in 
> Astron supplies.  Same capacitance value, but always much larger in 
> physical size.  I know there are differences between the two 
> in how they 
> are constructed, but my question is do the differences make 
> one or the 
> other better?
> 
> Thanks.
> 
> Tim Raymer
> Timothy A. Raymer               <[email protected]>
> Missouri Department of Health   <[email protected]>
> and Senior Services
> 
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