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Search: Posts Made By: AleXis6
Forum: General Capacitor Questions & Issues 04-03-2022, 02:52 PM
Replies: 8
Views: 438
Posted By AleXis6
Re: Something is knocking at Nippon Chemi-con

15V instead of 110 is almost nothing to show the problem
Forum: General Capacitor Questions & Issues 04-03-2022, 02:43 PM
Replies: 10
Views: 573
Posted By AleXis6
Re: new apple studio display uses capxon caps

I think it is a Planned obsolescence.
marketers want customers to update their gadgets more often
Forum: General Capacitor Questions & Issues 02-23-2022, 11:10 AM
Replies: 27
Views: 1,568
Posted By AleXis6
Re: Sacon FZ revival experiment

video about vloss - it is very inaccurate (https://www.youtube.com/watch?v=-fZiFeFLekk)
Forum: General Capacitor Questions & Issues 02-08-2022, 10:47 AM
Replies: 27
Views: 1,568
Posted By AleXis6
Re: Sacon FZ revival experiment

thanks
I have the same opinion
Forum: General Capacitor Questions & Issues 01-31-2022, 01:25 AM
Replies: 27
Views: 1,568
Posted By AleXis6
Re: Sacon FZ revival experiment

I did it couple times with 2 different testers (LCR T4 and LCR TC1).
It is more or less easy to repair -change the processor and write a new firmware (if it is available for your device).
and one...
Forum: General Capacitor Questions & Issues 01-31-2022, 01:14 AM
Replies: 27
Views: 1,568
Posted By AleXis6
Re: Sacon FZ revival experiment

please advice: "V_loss" corresponds to what parameter in the datasheet?
I have a couple different "transistor testers" and can't fully understand what this "V-loss" tells.
Forum: General Capacitor Questions & Issues 01-28-2022, 03:59 AM
Replies: 10
Views: 1,476
Posted By AleXis6
Re: Manufacturing Date of Electrolytic capcitor

So finally Digikey confirmed, that sold capacitors (2012-2014 YYYY) are to old .

also I received some their internal mails:
"The parts are too old to be used in the application.
We can credit...
Forum: General Capacitor Questions & Issues 01-21-2022, 02:05 AM
Replies: 10
Views: 1,476
Posted By AleXis6
Re: Manufacturing Date of Electrolytic capcitor

thank you for the response.
I ordered SMG ,SMQ Nippon series based on their pdf dated 2020 as a replacement for more old series which now installed in my online UPS.
Since the PDF of 2020, I...
Forum: General Capacitor Questions & Issues 01-20-2022, 01:13 AM
Replies: 10
Views: 1,476
Posted By AleXis6
Re: Manufacturing Date of Electrolytic capcitor

Digikey answered:
For all of these parts, the last time we received stock for these parts was in 2013/2014 and the date codes for these parts would before that time that we received stock in for the...
Forum: General Capacitor Questions & Issues 01-19-2022, 12:59 AM
Replies: 9
Views: 963
Posted By AleXis6
Re: sancon china caps

thanks for the details.
Forum: General Capacitor Questions & Issues 01-18-2022, 11:42 PM
Replies: 9
Views: 963
Posted By AleXis6
Re: sancon china caps

could you explain how better ripple current will lead to the problem described above?
Forum: General Capacitor Questions & Issues 01-18-2022, 12:08 AM
Replies: 34
Views: 4,577
Posted By AleXis6
Re: Modern Samxon and Teapo caps much better these days?

because almost no possible to buy good caps in my country in 1 day.
I bought it and soldered to repair my soldering station a half year ago, now can replace it. and this red Capxon had price as...
Forum: General Capacitor Questions & Issues 01-17-2022, 12:20 AM
Replies: 34
Views: 4,577
Posted By AleXis6
Re: Modern Samxon and Teapo caps much better these days?

I am not sure is it KF or not but sure in bright red color, it was relatively expensive and with low ESR 17mOhm (1000 x 63V). https://i.ibb.co/mcX6NGZ/2022-01-17-9-23-09.jpg (https://imgbb.com/)...
Forum: General Capacitor Questions & Issues 01-14-2022, 12:53 PM
Replies: 10
Views: 1,476
Posted By AleXis6
Re: Manufacturing Date of Electrolytic capcitor

Somebosy at this forum advised me to buy capacitors from digikey.
It is very far from me but I did an order and now can not understand is Digikey sold me >8 yers old capacitors? or May be Nichicon...
Forum: General Capacitor Questions & Issues 12-21-2021, 02:37 AM
Replies: 6
Views: 1,142
Posted By AleXis6
Forum: Troubleshooting Power Supplies and Power Supply Design 12-14-2021, 09:06 AM
Replies: 60
Views: 25,714
Posted By AleXis6
Re: Powerware 9120 Online UPS

lamps are constantly lighting rarely. for example during fast charge phase for 3 hours.
usually 1or2 just lights for several seconds, others - not, because 6*13.7=82.2V, and Ippon supplies 82.15V...
Forum: Troubleshooting Power Supplies and Power Supply Design 12-14-2021, 06:43 AM
Replies: 60
Views: 25,714
Posted By AleXis6
Re: Powerware 9120 Online UPS

capacitors like AD 10uFx350VAC usually with very short leads (5mm) at least which are available
Forum: Troubleshooting Power Supplies and Power Supply Design 12-14-2021, 06:41 AM
Replies: 60
Views: 25,714
Posted By AleXis6
Re: Powerware 9120 Online UPS

scheme similar as you described also works - 2 zener diodes (6.8V) + 1 resistors 5W
I tried it for a year .
it works but slowly and not accurate.
after that - I took TL431, tip127 some resistors...
Forum: Troubleshooting Power Supplies and Power Supply Design 12-14-2021, 06:31 AM
Replies: 60
Views: 25,714
Posted By AleXis6
Re: Powerware 9120 Online UPS

the length of the lead is just 5 mm

as about LE thank you, I tried to find,
but even digikey doesn't has any from my list (100x25v, 220x25v)
https://i.ibb.co/dJ9GZtc/le.jpg (https://imgbb.com/)
Forum: Troubleshooting Power Supplies and Power Supply Design 12-14-2021, 02:09 AM
Replies: 60
Views: 25,714
Posted By AleXis6
Re: Powerware 9120 Online UPS

sorry for the late reply. my current UPS with simple battery balancers still work well and I have time to setup Powerware9120 without urgency.
(I made battery balancers 3 years ago and has been...
Forum: General Capacitor Questions & Issues 12-13-2021, 07:54 AM
Replies: 9
Views: 963
Posted By AleXis6
Re: sancon china caps

Suncon?
https://www.sunelec.co.jp/eng/company/history/

some sellers mention as SUNCON(SANYO)
i have a couple nominals
Forum: General Capacitor Questions & Issues 11-05-2021, 06:32 AM
Replies: 34
Views: 4,577
Posted By AleXis6
Re: Modern Samxon and Teapo caps much better these days?

is the CapXon KF (red, low ESR) also bad?
Forum: General Capacitor Questions & Issues 10-19-2021, 11:44 PM
Replies: 3
Views: 634
Posted By AleXis6
Re: Question about capacitor size with same rating

just some information here
https://www.badcaps.net/forum/showthread.php?t=26134
https://www.badcaps.net/forum/showthread.php?t=18911
https://www.badcaps.net/forum/showthread.php?t=53198
Forum: General Capacitor Questions & Issues 10-11-2021, 04:37 PM
Replies: 26
Views: 3,748
Posted By AleXis6
Re: Question electrolytic capacitor from 1990`s

check and replace bad capacitors.
Forum: General Capacitor Questions & Issues 10-11-2021, 03:06 PM
Replies: 1
Views: 547
Posted By AleXis6
Re: Old electrolytic capacitors

1. As a read producers adviced to keep capacitors in ziplock packs to prevent shortage of their life
2. I bought LCR meter and evaluate the capacity, ESR, Z, D and other parameters and compare...
Showing results 1 to 25 of 42

 
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