Compatible capacitors

Old 02-10-23, 07:39 AM
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 283
Received 3 Upvotes on 3 Posts
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.

Old 02-10-23, 12:22 PM
Bob14525's Avatar
Join Date: Jun 2013
Location: USA
Posts: 1,641
Received 79 Upvotes on 69 Posts
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.
Houston204 voted this post useful.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: