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Re: [CAD_CAM_EDM_DRO] 470/100 caps (was Suitable Cap for Gecko's wasRe: 8-wire 1/2coil stepper?

Posted by Jon Elson
on 2002-05-08 22:21:26 UTC
Alan Marconett KM6VV wrote:

> Hi Dave,
>
> Thanks, I did something similar. Only I looked for low-leakage caps. I
> think we want a better cap then a cheap electrolytic (Tantalum low
> ESR's, I think). I couldn't remember the "low ESR" last time I posted.
> All I found were 6v caps. Otherwise, I'd have a bag of 'em!

I don't think you can get Tantalum caps over 35 V. I hate the small
of those burning up, anyway, and they have a REAL talent for spectacular
burn-ups!

Low ESR electrolytic caps are available, but you do have to search for them a bit.
Several smaller aluminum electrolytics in parallel, with a modest multilayer
ceramic can usually beat one big electrolytic. Say, 4 100 uF and a 1 uF
MLC might be 5 times better than one 470 uF aluminum cap.

Jon

Discussion Thread

Jon Elson 2002-05-08 22:21:26 UTC Re: [CAD_CAM_EDM_DRO] 470/100 caps (was Suitable Cap for Gecko's wasRe: 8-wire 1/2coil stepper? Alan Marconett KM6VV 2002-05-09 11:18:32 UTC Re: [CAD_CAM_EDM_DRO] 470/100 caps (was Suitable Cap for Gecko's wasRe: 8-wire 1/2coil stepper?