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Old 18th September 2003, 05:36 AM   #1
Arx is offline Arx  Canada
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Default Capacitor Substitution and my Junkbox BOZ

2 general questions, one specific one.

Is there any reason not to use capacitors which are rated way over the req'd voltage?

In conditions where a reduced cutoff frequency is not important (noise filtering, decoupling) is it a problem to use a higher capacitance than needed?

specificly, with refrence to the project at hand, is there any reason not to use 200v 220uf caps that I have on hand, in place of the 63v 100uf caps which are called for?

As far as I can tell, it shouldn't really matter, but I'm a newbie compared to a lot of you guys, and I'd rather check than blow stuff up.
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Old 18th September 2003, 01:29 PM   #2
Anorgan is offline Anorgan  Croatia
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"Is there any reason not to use capacitors which are rated way over the req'd voltage?"
No, it is better to use higher voltage rated cap's.

"is there any reason not to use 200v 220uf caps that I have on hand, in place of the 63v 100uf caps which are called for?"
No, I used a 100V 100uF, it worked fine. 220uF shouldn't be a problem, if you have more of them - put them in series, that way you split capacitance, but resistance is bigger. Try anyway - Pass put all those parts because he had them on shelves - he said that a couple of times, it's not that crucial.
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