First post, by joek
Hi
I have an old Dell PC XPS 410 / Dimension 9200 built in 2007
It still works fine but I noticed one of the caps bulging on the motherboard and I want to replace the cap.
The bulged Cap is an electrolytic Cap UCC KZJ series 2200uF 6.3V ESR 12 mOhms & Ripple of 2700 mA 10x16mm
The mother board has 6 of these caps in total on the Board and I want to replace the entire lot as the UCC KZJ series was a known bad series of caps made by UCC
Since low ESR caps are no longer produced and hard to come by I'm assuming the only choice I have is to replace with a poly cap.
I did find some similar NOS Electrolytic caps on Mouser , Nichicon HN series caps ( they only have 23 left in stock) 2200uf 10v ESR of 9 mOhms and ripple of 3190 mA , 10x25 mm , these a re little taller which is fine for me as space is not an issue and voltage is a little bit higher and should not be an issue with ESR & Ripple being similar https://au.mouser.com/ProductDetail/nichicon/ … urrencycode=AUD
Should I replace my faulty UCC KZJ caps with these NOS Nichicon HN series caps or use new polymer Caps ?
Also what Poly caps should I use ?
I did find the equivalent in a Poly cap 2200uF 6.3V ESR 12 mOhms Ripple 5000mA https://au.mouser.com/ProductDetail/Nichicon/ … gSLVsG42QpIQ%3D
Are these poly caps OK to use ?
I do remember reading somewhere that if you use poly caps to replace Electrolytic caps that you should use HALF the capacitance or 1100 uF in my case which confuses me even more
Any advice would would be greatly appreciated