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Search: Posts Made By: stj
Forum: General Capacitor Questions & Issues 10-04-2019, 02:44 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

yes, but there is a limit to how low the esr can go, usually related to the frequency of the circuit.
Forum: General Capacitor Questions & Issues 10-03-2019, 03:53 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

the dubilier cap had the lowest esr - that's why it had the best performance.
Forum: General Capacitor Questions & Issues 09-14-2019, 03:37 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

well 13mm is wrong, the official size is 12.5mm,
if your trying to size-match there is nothing wrong with increasing the voltage to 16 or even 25v

have you seen this chart?
Forum: General Capacitor Questions & Issues 09-13-2019, 08:15 PM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

damn, well i think YXF is still sold.
Forum: General Capacitor Questions & Issues 09-13-2019, 03:24 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

i meant the YXA,B,F series :)

you obviously speak japanese - why not email Rubycon and ask them if they have old datasheets or compatability tables?
Forum: General Capacitor Questions & Issues 09-13-2019, 03:13 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

well get the datasheet and see if the size you want even exists i suppose.
Forum: General Capacitor Questions & Issues 09-12-2019, 03:41 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

check YX range, YXA is highest esr, YXF is probably good for the job.
Forum: General Capacitor Questions & Issues 05-20-2019, 03:21 PM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

PS/PJ look similar to rubycon YXJ series.
Forum: General Capacitor Questions & Issues 05-17-2019, 10:31 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

polymer in an ancient psu?
let us know if it works - but i expect issues.
Forum: General Capacitor Questions & Issues 05-16-2019, 08:57 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

well list the series of caps your interested in.
Forum: General Capacitor Questions & Issues 05-16-2019, 02:50 AM
Replies: 29
Views: 2,485
Posted By stj
Re: Macintosh polymer recap & ESR considerations

in the 80's you got low esr by putting 3-6 (or more) caps in parallel with ceramics,

here is a datasheet collection.
http://www.paullinebarger.net/DS/
Showing results 1 to 11 of 11

 
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