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#341 |
MrMazda
Join Date: Sep 2013
City & State: Nature Coast, FL
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 100
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![]() Enercon GS, used by Funai Corporation Inc. in its consumer electronics brand Magnavox.
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#342 |
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() Well, I wouldn't say it's a malpractice, but you certainly have to know what you are doing if you are using general purpose caps for a switching power supply. Take for example CRT monitors and TVs - a lot of them use general purpose caps in their power supplies. Yet, many of them lasted 10 years or more - even the ones with dodgy cap brands. A lot of my CRTs are actually close to 20 years old now and still function properly. I've pulled caps from a few just for fun, and they tested within specs too. So again, if the designed of the device know what they are doing, they can get away with general purpose caps. But for most things built nowadays, I wouldn't count on it.
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#343 |
Member
Join Date: Apr 2019
City & State: Italy
My Country: Italy
I'm a: Knowledge Seeker
Posts: 87
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![]() Yes, even good CRT monitor use generic capacitors on the secondary of the switching power supply section.
For example a pair of Samxon GS which have very relaxed specifications. They still measures correctly. Replaced them with low E.S.R. counterparts though. Some CRTs from the 2000s have Elite, they fail in the secondary and develop high E.S.R. on the B+ rail (without failing). |
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#344 |
Badcaps Veteran
Join Date: Jun 2012
City & State: Melbourne
My Country: Australia
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 692
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![]() Not a capacitor, but I just came across this knockoff Panasonic battery on Reddit - "Penesamig".
https://www.reddit.com/r/crappyoffbr..._and_got_this/ |
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#345 |
New Member
Join Date: Aug 2020
City & State: North Yorkshire
My Country: England
Line Voltage: 240vac 50Hz
I'm a: Knowledge Seeker
Posts: 4
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![]() Are Sanyo ok !
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#346 |
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() If they are legitimate, YES.
However, their WF series is known to have a lot of problems, particularly with being heat-sensitive and going bad very quickly if not used. All in all, the failure mode is very similar to United Chemicon KZG. So avoid Sanyo WF series. WG is OK. WX and SE if I recall are OK as well. Also, I think Sanyo now makes caps under the Suncon name, so if you see any new Sanyo caps (especially from cheap sites like eBay, Amazon, AliExpress, and etc.), beware that they could be counterfeit. |
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#347 |
Badcaps Veteran
Join Date: Oct 2009
City & State: Thessaloniki, Greece
My Country: Greece
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 2,137
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![]() Not sure about Fujitsu
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#348 |
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() Yeah, the spambot that made the 1st post with that half-baked cap list looked iffy to me right from the beginning, but there was nothing wrong with it that I could flag it for. Generally, though, whenever I see a new user post some irrelevant garbage in an old sticky thread, I don't reply and only monitor that user, as chances are it's a spam bot. Sure enough when that spam bot made the 2nd post, it contained garbage spam links.
Last edited by momaka; 09-08-2020 at 06:27 PM.. |
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#349 |
Member
Join Date: Dec 2020
City & State: athens
My Country: Greece
I'm a: Knowledge Seeker
Posts: 34
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![]() inside on a brand new https://www.badcaps.net/forum/attach...=1607258169amp
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#350 |
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() Wow! ^
![]() Talk about small caps hidden in big cans. ![]() What capacitance did it measure? If it measured 4700 uF, I bet it probably was a lower voltage cap then (like maybe 25V or 35V?) On the plus side, all of that empty space inside the can could allow a lot of gas to build up when the cap starts failing. If you have more of these caps, it would certainly be interesting to subject them to more tests to see how/what they do over time (like maybe install in some inexpensive equipment and abuse the crap out of them, if that's possible.) |
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#351 |
ghettomodmaster
Join Date: Nov 2016
City & State: Bulgaria
My Country: Bulgaria
Line Voltage: 230VAC 50Hz
I'm a: Student Tech
Posts: 940
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![]() TV-s are usually not that hot and the components are not that cramped. Especially the CRT TV-s. For computer PSU-s I always use 105C caps.
__________________
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#352 |
Member
Join Date: Feb 2021
City & State: Minsk
My Country: Belarus
Line Voltage: 220VAC 50Hz
I'm a: Knowledge Seeker
Posts: 62
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![]() NCC TMV - another bad series from NCC, same as KZG, but these, mostly 680uf 4v, don't have vent on top, so they bulge on bottom, put 4-5 out from an 775 Asus board, they were bulged on bottom.
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#353 |
Member
Join Date: Feb 2013
City & State: Klaipeda
My Country: Lithuania
I'm a: Knowledge Seeker
Posts: 95
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![]() KY WIN ROBOT Store
sold me brand new FAKE caps. https://ky1943479.aliexpress.com/sto...6c5d4a1eZVPpYJ 10pcs/bag 10 * 17mm 400V / 10UF electrolytic capacitor EUR 0.97 X1 10pcs 400V 6.8UF 10x13mm 105C Radial High-frequency low resistance Electrolytic Capacitor 6.8UF 400V EUR 0.97 X1 20pcs electrolytic capacitors 4.7UF 400V 8x12mm 105C Radial High-frequency low resistance Electrolytic Capacitor EUR 1.02 X1 Total price EUR 5.11 Caps are out of spec, legs are made from iron, sticks to magnet like crazy. |
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#354 | |
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() Quote:
Cheap Chinese store that sells all kinds of cheap electronics junk typically will also sell same type of capacitors. While the photos in that store show Sanyo caps, note that there is nothing in the description that says you will get Sanyo caps. And looking at the reviews, I see a lot of people showcasing Chong/ChengX caps with measurements on their cheapo ESR meters - as if that has any meaning at all. The problem with cheap caps is not only that they may not measure in spec (in fact, you were probably unlucky, because cheap caps usually DO measure in spec), but that they likely won't last any reasonable time. They are "good" for a cheap, temporary repair. And how long that "temporary" can go on, no one can tell, because cheap caps are just so inconsistent. They could last for years... or more than likely, they will just last a few months and go bad, especially if they are used in any kind of stressful application. If you do want to buy caps online from AliExpress or eBay, the key is to look what else the seller has in their store. If they seem to sell only caps and/or NOS electronic components, they actually might have genuine branded capacitors. But if they don't... I pass. You're better off reusing caps from old TVs than use these cheap caps. |
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#355 |
Senior Member
Join Date: Aug 2010
City & State: Phoenix, AZ
My Country: USA
Line Voltage: 120v 60hz :(
I'm a: Hobbyist Tech
Posts: 130
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![]() Caps labeled FOAI FZL 470uf 6.3v and 25v in a Motorola SB6141 cable modem bought in 2015. Started having T3 errors.
just opened it yesterday and found this: ![]() I replaced all the swollen and non swollen FOAI caps and it seems to be working better now.
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"...off the record, unnamed government sources alluded to unsubstantiated innuendos about alleged indiscretions and insinuated that they are rumored not to be without basis for further speculation..." |
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#356 |
MrMazda
Join Date: Sep 2013
City & State: Nature Coast, FL
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 100
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![]() Weird. My SB6121 has only polys.
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#357 |
Badcaps Veteran
Join Date: Aug 2005
City & State: San Jose, CA
My Country: USA, Unsure of Planet
Line Voltage: 120VAC, 60Hz & 115VAC, 400Hz
I'm a: Professional Tech
Posts: 3,396
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![]() Yep, those caps are preggers and not going to deliver anything good. FWIW, the date on the PWA is February 2012.
__________________
PeteS in CA Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells. **************************** To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it. **************************** Anti-Covid-Vaxxer pig crap claim/prediction, Doctor: Heart Failure from mRNA Jabs "Will Kill Most People" | Principia Scientific Intl. ; Dr. Geert Vanden Bossche Warns COVID-19 Jab Injuries and Deaths Will Soon "Collapse Our Health System" (VIDEO) ; Fully Vaxxed May 2021; Since that time I've done 7 5Ks, 1 8K, 8 10Ks, and 4 half marathons |
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#358 |
New Member
Join Date: Sep 2015
City & State: Melun
My Country: France
I'm a: Knowledge Seeker
Posts: 2
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![]() Tawainese Wang's Cap and CapXon are really bad brand as well (found for example in Atari STs).
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