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Old 08-03-2012, 09:38 PM   #12
vsmGuy
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Join Date: Jul 2006
City & State: southern california
Posts: 28
Default Re: Need tips in fixing APC 1500VA UPS having buzzing noise

Quote:
Originally Posted by budm View Post
You should try to look up the spec of the original cap to see if it is non-inductive type, high pulse type, low ESR type. just match the new cap spec with the old cap spec.
Quote:
Originally Posted by Toasty View Post
That being said, Epcos B32232 sheet attached. Metallized Polyester Film.
I found caps of similar rating (20uF 250V) that are $3 each: http://www.bgmicro.com/24uf220vac.aspx

1. However, these are 12 years old (made in October 1998) - should it be good to go or it's too old to be of use?

2. I am assuming Metallized Polyester Film, specified Metallized Mylar should be better quality being a brand name and not a generic Polyester cap, or is Mylar and Polyester used pretty much interchangeably
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