![]() |
|
|
Thread Tools | Display Modes |
![]() |
#1 |
Badcaps Veteran
Join Date: Jan 2018
City & State: Central PA
My Country: United States
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 248
|
![]() I pull a buch of (Teapo, Samxon, Ltec, Taicon, etc.) caps from older power supplies and they always check out very low ESR and capacitance in spec. Are chinese caps much better than they used to be?
__________________
-------------------------------------------------------------- Ryzen 3600x 16GB Patriot 3600MHz MSI B450 Gaming Plus MSI Air Boost Vega 56 Acer 32" 1440P Freesync Rosewill Capstone 750W -------------------------------------------------------------- Hakko FX-888D Station FX-8802 Iron MG Chem .8mm 63/37 RA 2.2% |
![]() |
![]() |
![]() |
#2 |
Member
Join Date: May 2011
Posts: 56
|
![]() These brands are Taiwanese companies, where pure mainland Chinese caps are ChangX, ChongX, Xicon, Aishi...
Refrain from talking cross strait politics. |
![]() |
![]() |
![]() |
#3 | |
Badcaps Veteran
Join Date: Jan 2018
City & State: Central PA
My Country: United States
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 248
|
![]() Quote:
|
|
![]() |
![]() |
![]() |
#4 |
Super Moderator
Join Date: Jul 2005
City & State: ----
My Country: Sweden
Line Voltage: 230v 50Hz
I'm a: Knowledge Seeker
Posts: 5,066
|
![]() I would say no, for example Samxon (Man Yue) is based in China.
But both CapXon and Fuhjyyu are based in Taiwan. I would rate Samxon a few notches above those two!
__________________
"The one who says it cannot be done should never interrupt the one who is doing it." |
![]() |
![]() |
![]() |
#5 |
Member
Join Date: May 2011
Posts: 56
|
![]() if i see samxon, capxon, taicon/ teapo now, I wont hurry to replace it, also dare to gamble on Aishi but not others.
I have some bulged fujicon caps ( power decoupling & speaker coupling) in my 7 years old AA battery powered Tecsun radio, never exposed to any heat more than body temp, good job! |
![]() |
![]() |
![]() |
#6 |
The Boss Stooge
Join Date: Oct 2003
City & State: Salem, MO
My Country: United States
Line Voltage: 240V @ 60Hz
I'm a: Professional Tech
Posts: 15,003
|
![]() Some series of Samxon were known to be problematic (GF was the worst). The GA, GC, and GD Ultra-low ESR caps back in the days were great cost-effective replacements for failed motherboard caps....but have those series have been out of production for nearly a decade now.
__________________
<--- Badcaps.net Founder & Owner Badcaps.net Services: Premade Capacitor Kits Badcaps.net Capacitor Master List Motherboard Repair Services If you've come here in search of replacement capacitors or repair services, please use the links above. ![]() ---------------------------------------------- Badcaps.net Forum Members Folding Team http://folding.stanford.edu/ Team : 49813 Join in!! Team Stats |
![]() |
![]() |
![]() |
#7 |
Badcaps Veteran
Join Date: Jan 2011
City & State: New Jersey
Posts: 449
|
![]() I haven't been on this forum in years, but, now that I work in power adapter design, with a factory (wholly owned by the company) in China, here's my input:
Samxon, Aishi, Teapo, and Jianghai are quite solid, particularly if you use their higher end caps. For Samxon: SK and SH. For Aishi: RJ and RZ, and so on... We've done some accelerated life testing with these caps and have seen no issues. Most important part is to use adequately rated parts in the first place, of course. In general, I think it's less about brand (per say) and more about BOM cost targets for the product. Naturally, if a company is trying to hit some absurdly low cost target, they will first reach for the lower cost brand (i.e. switch from Japanese to Chinese), and then may even downgrade within the brand to a worse series (i.e. From Samxon SK to GF). In my opinion, Chinese companies are perfectly capable of making caps as good as Japanese companies, and for cheaper. But often times, when companies are looking for cheap, they just keep digging deeper in the barrel until they've landed on some garbage. So, when they fail, and we replace them, we might want to say "Samxon...Chinese crap!", but it was probably just improperly specified to start with. My two cents. Edit: Holy smokes, I haven't posted in 9 years? Where has the time gone? ![]() Last edited by TheLaw; 12-16-2020 at 11:02 AM.. |
![]() |
![]() |
![]() |
#8 | |
Black Sheep
Join Date: Nov 2008
City & State: Madison, IN
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Professional Tech
Posts: 16,619
|
![]() Quote:
__________________
(Insert witty quote here) |
|
![]() |
![]() |
![]() |
#9 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,446
|
![]() how many japanese company's still make japanese caps?
Panasonic has shifted factories to malasia among other places. |
![]() |
![]() |
![]() |
#10 | |
Badcaps Veteran
Join Date: Jan 2011
City & State: New Jersey
Posts: 449
|
![]() Quote:
Confirmed below: https://www.nichicon.co.jp/english/c...m_isots01.html https://www.chemi-con.co.jp/e/company/bases.html The enthusiast PC market is still beating the "WE ONLY USE JAPANESE CAPS" drum, somewhat ironically, given that half of them are not made in Japan anyway. The whole thing leaves me feeling a little weird. On one hand, it's true that the Japanese manufacturers have built a solid reputation over many years, whereas the Chinese manufacturers have a more spotty track record. But still feel like there's some baked-in subtle racism (country-ism?) there. I think advertising "Only Japanese caps!" is sort of the equivalent of slapping a "Fair Trade" sticker on coffee. Keep it simple for the consumer. Too much politics? |
|
![]() |
![]() |
![]() |
#11 | |
The Boss Stooge
Join Date: Oct 2003
City & State: Salem, MO
My Country: United States
Line Voltage: 240V @ 60Hz
I'm a: Professional Tech
Posts: 15,003
|
![]() Quote:
Ohh BTW....Nice seeing you again! |
|
![]() |
![]() |
![]() |
#12 | |
New Member
Join Date: Dec 2020
City & State: Edmonton, AB
My Country: Canada
I'm a: Knowledge Seeker
Posts: 3
|
![]() Quote:
They have 10 production sites in Japan, 1 in Indonesia. They don't make any capacitors in China. All the Rubycon capacitors I have bought from Digikey have Japan as the country of origin. Also, "Japanese Capacitor" seems to mean the capacitor is a Japanese brand, it doesn't have to be made in Japan. For example if you buy Japanese brand capacitors that are made in Malaysia, they are still high quality and maintain the quality standards of the company. |
|
![]() |
![]() |
![]() |
#13 | |
The Boss Stooge
Join Date: Oct 2003
City & State: Salem, MO
My Country: United States
Line Voltage: 240V @ 60Hz
I'm a: Professional Tech
Posts: 15,003
|
![]() Quote:
|
|
![]() |
![]() |
![]() |
#14 | |
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: 10,862
|
![]() Quote:
As for Taicon, that's probably the only brand I've seen do almost as well as Japanese capacitors in power supplies - even in applications where these were right next to failed Ltec, Teapo, and CapXon. All in all, I don't see Taicon failed too often. On that note, let's talk about Ltec: they are quite garbage, IMO. I see the LZG and LZP series break down after 5-10 years in PSU use all the time. Typical failure mode is increasing capacitance (increasing internal leakage) until electrolyte eats the foil away, produces gas, and makes the cap vent... after which is just a matter of time before the electrolyte boils out and the cap looses capacitance / goes high ESR. Now, you might say that 5-10 years doesn't seem so bad... and honestly speaking, it probably isn't considering they are cheaper caps. But from what I've been finding when recapping 5/10/15 year old Delta and HiPro PSUs is that Ltec caps are pretty much a guaranteed to failure. Teapo SC series are in a similar boat. That said, let's do Teapo next. My personal observation is that they are hit-or-miss, depending on the series. Seems that their SY series are actually not that bad at all. But SC, on the other hand, seem to break down in a similar fashion to Ltec, as mentioned above. SM is kind of similar to SC, but sometimes may do better. SEK series are general purpose 105C caps... but they somehow seem to break down similar to SC series, too, though a bit slower (and quicker without use.) Compared to equivalent Japanese 10C GP series, they don't last anywhere near as long. As for CapXon... do we really need to talk about them? ![]() I think they are pretty bad overall, regardless of series. I do have a few very old KM series, and somehow they are still in spec and haven't begun to break down. But those are the very few exceptions. Almost everything else I run into with CapXon needs a recap eventually. So I suggest to not trust them and replace when the opportunity is there. And Fuhjyyu... kind of similar to CapXon, but a bit more hit-or-miss. That is, they seem to be a miss for the most part, but occasionally will have a batch that doesn't fail. Seems their specs are a bit over-stated too. If treated very gently / underloaded, they might do OK - at least that's what I've seen from the few good ones I've pulled from PSUs. On that note, it seems that CWT PSUs always kill them. So I don't know if application there also has to do with their failure. All in all, my suggestion is similar to the one for CapXon: don't trust them and replace when possible. But if you want to play your luck with them: cool them well and make sure they are very lightly loaded. Last but not least: OST. I think with OST it's the same as with Teapo: hit-or-miss for most series, but a few series are OK. Namely, I find the RLS series to do fairly well in PSUs. But RLP series - not so much. Biostar and a few other motherboard brands used to use RLP series quite a bit. On that note, all I have to say is that the older RLP series seem to fail less often than the newer RLP, but that could have just been my luck / observation. Then there's RLG - the general purpose 105C series. I see them used in PSUs sometimes, but they don't do well there (or anywhere with more heat or high ripple current.) Put them on a linear circuit, though, and they should work pretty well and for a long time. Then there's the RLX series - meant to be ultra-low ESR for motherboards. I find these to be quite unstable, though, so avoid / replace them. And finally, the RLZ series (found on the CPU VRM of some motherboards)... no, just replace them. They will only be bad news down the line. Last edited by momaka; 12-26-2020 at 09:38 PM.. |
|
![]() |
![]() |
![]() |
#15 |
Badcaps Veteran
Join Date: Dec 2008
Posts: 5,341
|
![]() Sorry to resurrect this thread, but I just had to comment on Samxon SK.
Our local cable provider started using these in the cable boxes... Where an identical model would hade had Japanese caps, SK our there in their place. TheLaw, you make a good point, but now that there's a materials shortage around the world, can Chinese companies be trusted? Sure, Japan and China are shame-based cultures as opposed to the guilt-based culture of the west, but if faced with an electrolyte shortage, would UCC release a batch of KZE which they know to be defective? I think not. The same can't be said for Samxon.
__________________
"...I suppose he wants to be free of youthful associations, as most of us do." -Robertson Davies "...don't say oh my god, your god is far away from you. I give you massage. I am your god now." -Luo Dong |
![]() |
![]() |
![]() |
#16 | |
Comrade Glimmer
Join Date: Aug 2007
City & State: tehas
My Country: US
Line Voltage: 120VAC 60Hz
I'm a: Professional Tech
Posts: 4,817
|
![]() Quote:
__________________
Cap Datasheet Depot: http://www.paullinebarger.net/DS/ ^If you have datasheets not listed PM me |
|
![]() |
![]() |
![]() |
#17 | ||
SNES-powered
Join Date: Oct 2013
City & State: Bacau
My Country: Romania
Line Voltage: 230VAC 50Hz
I'm a: Hobbyist Tech
Posts: 1,465
|
![]() Quote:
Quote:
RLZ... I don't think I've seen them outside of some lesser known Chaintech motherboards from the P4 era like the MPM800, and a EPoX EP-4PLA3I that had them gone bad already. Anything else I've encountered mostly stuck with RLX for CPU. (and ECS is a near perfect example of this.)
__________________
Main rig: Gigabyte B75M-D3H Core i5-3470 3.60GHz Gigabyte Geforce GTX650 1GB GDDR5 16GB DDR3-1600 Samsung SH-224AB DVD-RW FSP Bluestorm II 500W (recapped) 120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB Delux MG760 case |
||
![]() |
![]() |
![]() |
#18 | ||
Badcaps Veteran
Join Date: Dec 2008
Posts: 5,341
|
![]() Quote:
The way it works is, if the box was a rental and the person threw it out, it's attached to their account and it's practically worthless unless you somehow trace it back to its owner. So those boxes get taken apart and scrapped. The boxes which are not attached can be sold in the classifieds. Quote:
Speaking of trash, I am finally re-capping an Abit KT7A I found in the trash around ten years ago (even remember the street and house where it was tossed)... I am experimenting with authentically sourced Nic Components (my first time) NRZJ series. I got them at a reduced price. Let's see how they hold up. They are made in Japan. |
||
![]() |
![]() |
![]() |
#19 | |
Badcaps Veteran
Join Date: Jul 2004
City & State: North Springfield, Vermont
My Country: USA
Line Voltage: 118-127V 59-63.5 Hz-> actualizo: pérdido de voltaje
I'm a: Knowledge Seeker
Posts: 6,029
|
![]() Quote:
Possibly the same with Fuhjyuu, where 2003 or earlier, look less likely to fail than 2004s and 2005s. But I can't be 100 percent about this! IIRC, I saw multiple 2004 Antecs with bulging and leaking Fukyuu caps at WinCycle, before the one I knew, disappeared, it was relocated and they acted like a different administration took over. But my 2003 TruePower 1.0 430W PSU never had a leaking or bulging cap when it was in use, even when I last saw the PSU. But, OTOH, my 2005 SmartPower 2.0 500W PSU, definitely had a bad Fukyuu cap, I think it was for the +5V standby, as there was a whine heard when in standby with the house very quiet one day in 2011.
__________________
ASRock B550 PG Velocita Ryzen 5 "Vermeer" 5600X 16 GB G. Skill Ripjaws V F4-3200C14D-16GVR Sapphire Nitro+ Radeon RX 6600 XT eVGA Supernova G3 750W Samsung 970 Pro 512 GB NVMe SSD "¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr"!" -mí mismo "There's nothing more unattractive than a chick smoking a cigarette" -Topcat "Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat "did I see a chair fly? I think I did! Time for popcorn!" -ratdude747 Last edited by RJARRRPCGP; 10-31-2021 at 08:54 PM.. |
|
![]() |
![]() |
![]() |
#20 | |
Badcaps Veteran
Join Date: Dec 2008
Posts: 5,341
|
![]() Quote:
I also had an Antec Truepower "New" up until a couple or so weeks ago in my optical drive tower (an Antec 900 fitted with 8 optical drives and 1 floppy -- used for my media testing... see my posts at myce.com). This PSU was a classifieds purchase, and it's an all-Japanese cap, early Seasonic DC-DC design from 2011 or so. It developed an odd intermittent condition where my HDD started spinning up and down on power up. It was immediately decomissioned and replaced with an Antec "Neo Eco V2" 650W PSU: Besides the primary, all Cheapo Teapo SC, save for 1 Teapo SY and two Jun Fu WG. I liked the price of this PSU though, and I liked that it doesn't use the new fancy DC-DC design. I'm just powering some dumb optical drives with it, not an RTX 3070... And the lack of complexity meant that this thing was extraordinarily easy to preemptively re-cap. The soldering on the bottom was beautiful and the alloy was very good and almost fooled me into thinking it was leaded. I think this is an Delta OEM but I can't be sure. The cap dates were mid-2020. But at least I won't have odd issues like that overly complex Truepower New... Sure it's all very nice... But one little tin whisker can ruin all the fun. This TruePower goes in my "old, expensive PSUs that need to be scrapped, because they are impossible to diagnose and repair due to their complexity" pile. Last edited by mockingbird; 10-31-2021 at 09:16 PM.. |
|
![]() |
![]() |
![]() |
Thread Tools | |
Display Modes | |
|
|