Compatible capacitors


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Old 02-10-23, 07:39 AM
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Compatible capacitors

I'm looking at replacing the capacitors in all three of my outside condensing units but what specs should I look at for compatibility?

I see microfarads, percentage of variation, AC volts, etc but wanted to know if some of those can be close or if they need to be spot-on for replacements to avoid damaging the unit. Amazon has some deals on similar products that doesn't exactly match but are close.

Thanks!
 
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Old 02-10-23, 12:22 PM
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The two most important parameters are the capacitance and the voltage. Ideally, the capacitance should be an exact match to the original, and unless it's an odd value that can't easily be found, I would make the replacement value the same. As for the voltage, as long as the voltage on the replacement is the same or higher, it's fine. Generally speaking, higher voltage is better, however as long as it's not lower than the original, it's fine.
 
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