Author Topic: Capacitor substitution  (Read 296 times)

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Offline Dapp927Topic starter

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Capacitor substitution
« on: October 08, 2024, 04:24:45 pm »
Greetings all! I'm doing a recap on a Paco C-20 and C9 calls for a .02 uf, 400V, tubular, precision. Can I use one of these three, or do I need to get the exact capacitor? Thanks in advance!
 

Offline TimFox

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Re: Capacitor substitution
« Reply #1 on: October 08, 2024, 04:54:22 pm »
Greetings all! I'm doing a recap on a Paco C-20 and C9 calls for a .02 uf, 400V, tubular, precision. Can I use one of these three, or do I need to get the exact capacitor? Thanks in advance!

None of those units is "precision", apparently 10% or 20% tolerance.
What is the purpose of C9 in that unit?
Normally, to replace a 400 V tubular capacitor, I would use an axial-lead polypropylene unit, with voltage rating 400 V or more (600 and 630 V are common).
If you have an LCR meter, you could sort a few to get the best result, or buy 0.01 uF units and sort to get a good pair.
 

Offline Dapp927Topic starter

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Re: Capacitor substitution
« Reply #2 on: October 08, 2024, 08:13:08 pm »
Thanks Tim! I’m in the process of ordering this one from DIGI-KEY. Ironically, the capacitor is for a capacitor tester :-DD 

I can’t make this stuff up :-//
 

Offline TimFox

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Re: Capacitor substitution
« Reply #3 on: October 08, 2024, 08:15:27 pm »
That should work.  The extra price is probably due to the tight tolerance, 2%.
 


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