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Old 12-28-2020, 11:22 AM
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SHS SHS is offline
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Circuits in ref to Capacitor

My very old Geek Squad UPS any way I replace a Su'scon MK 33uF 200v which had gone bad with Nichicon UVZ VZ 33uF 200v, 12.5mm x 20mm capacitor the UPS seem to charge but only up to 60% then seem stop so I wondering dose size diff of Nichicon have anything to do with it being it bigger ? or do I need replace with very same one made by Su'scon.
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Old 12-28-2020, 02:29 PM
JustFred JustFred is offline
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Originally Posted by SHS View Post
My very old Geek Squad UPS any way I replace a Su'scon MK 33uF 200v which had gone bad with Nichicon UVZ VZ 33uF 200v, 12.5mm x 20mm capacitor the UPS seem to charge but only up to 60% then seem stop so I wondering dose size diff of Nichicon have anything to do with it being it bigger ? or do I need replace with very same one made by Su'scon.
In my experience, Nichicon makes reliable caps. Physical size (in itself) doesn't affect the operating characteristics of the cap. But more importantly, this application probably calls for a low-ESR cap. The datasheet for the UVZ series doesn't specify that it's low-ESR (so it's more likely to self-overheat when used in a UPS.) The Nichicon UPS or UPJ series might be a better choice.
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Old 12-28-2020, 08:29 PM
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Originally Posted by JustFred View Post
In my experience, Nichicon makes reliable caps. Physical size (in itself) doesn't affect the operating characteristics of the cap. But more importantly, this application probably calls for a low-ESR cap. The datasheet for the UVZ series doesn't specify that it's low-ESR (so it's more likely to self-overheat when used in a UPS.) The Nichicon UPS or UPJ series might be a better choice.
I did find UPS2A330MPD and UPJ2A330MPH6 off ebay but there only rate at 100v.
It hasn't over heated one bit just not full charger, I guest I have order the same Su'scon MK 33uF 200v that it come with and just have to wait forever for it come from china and hope it solve the problem.
The only other option is add an external battery maintainer charger

Any way Thanks JustFred that very used full info
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Old 12-28-2020, 09:09 PM
JustFred JustFred is offline
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Digikey is a good source for small quantities. Their web page shows 815 of the UPS-series in stock: https://www.digikey.com/en/products/...QASvMABUA8rTpA

Check the dimensions. You might need the UPJ instead.
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Last edited by JustFred; 12-28-2020 at 09:11 PM.
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Old 12-28-2020, 09:27 PM
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Originally Posted by JustFred View Post
Digikey is a good source for small quantities. Their web page shows 815 of the UPS-series in stock: https://www.digikey.com/en/products/...QASvMABUA8rTpA

Check the dimensions. You might need the UPJ instead.
The UPJ are way to big fit at 16mm round
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