Capacitor plague brands. Some periods are far worse than others.

Capacitor plague brands capacitor plague) in electrolytic capacitors (typically Taiwanese low-ESR types used in switching power supplies): Top 30 Electrolytic Capacitor Brands in 2025. Capacitor plague received a peer review by Wikipedia editors, which is now archived. (I assume, have yet to watch) the electrolytic capacitor plague. . qrz. Ultimately, some of the decisions The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing of the case of the capacitor The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminum electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation, often rupturing the case of the capacitor from the build-up of pressure. Even Recently on EETimes. According to Wikipedia, the capacitor plague affected all kind of electronic products but yes, mostly PC products, since the erroneous electrolyte formulation was for low ESR capacitors > Industrial espionage was implicated in the capacitor plague, in connection with the theft of an electrolyte formula. there is no problem using a 400v 10uf or 450v ``10uf capacitor instead of a 350v 10uf capacitor. It was top-end back in the day, and I felt like giving up overclocking to get better quality was a 'Industrial espionage was implicated in the capacitor plague, in connection with the theft of an electrolyte formula. There was a period in the late 90’s to early 2000’s known as the capacitor ‘plague’ where many manufacturers went with cheap low ESR capacitors from these manufacturers, only to find many power supplies were failing prematurely (within a year or two of manufacture). Electrolytic capacitors are usually found in power supplies. In addition to those there are: Suncon (former Sanyo) TDK (former Epcos) Kemet Vishay Cornell Dubilier - CDE ELNA As well there are cheaper but still decent capacitors as: SAMXON Jamicon Lelon « Last Edit: November 21, 2017, 09:42:30 pm by wraper » I'm referring here to the capacitor plague era and premature failures, NOT sound quality. This prompted several The brands affected were Nichicon and Rubycon (I've seen units of this age leaking), and to some extent, possibly Matsushita and Elna. "The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminum electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty Nichicon Corporation (ニチコン株式会社, Nichikon Kabushiki-gaisha) is a manufacturer of capacitors of various types, and is one of the largest manufacturers of capacitors in the world, [citation needed] headquartered in Karasuma Oike, Nakagyō-ku, Kyoto, Japan. 25. Capacitor Plague (2002-2005) In the early 2000s, Gigabyte and other motherboard manufacturers faced the “Capacitor Plague,” a widespread issue caused by faulty electrolytic capacitors supplied by several Taiwanese capacitor manufacturers. Including the good ones. Share Post. From formulasearchengine. I opened it up and found those 3 capacitors were swollen and just started to leak. With bigger brands they have a lot Capacitor Plague - Industrial Espionage Implicated. There was the famous "capacitor plague", but that was apparently confined to one capacitor manufacturer in Taiwan. Those instruments fail way more than other brands. 9 Legend. The story seems like it neatly epitomizes the shift of electronics manufacturing from Japan to China in that era. [1][42] This incomplete electrolyte lacked important proprietary ingredients which were essential to the long-term stability of the capacitors[4][23] and was unstable (FWIW, my opinion on the 'capacitor plague' is that it was over-rated, and applied mainly to dodgy brands and the lower-priced (to compete with the dodgy brands) lines from larger brands. Some periods are far worse than others. The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing I think people got scared during the 'capacitor plague' (here's the wiki link https: Just use good brand aluminium electrolytics, rated for 10k hours at 105C, and when buying them get same height or similar, same diameter or slightly smaller, and higher voltage than old ones. Most CRT TVs are not made during the capacitor plague, and not all capacitor brands were Higher voltage rating = physically larger capacitor = better heat dissipation = longer life mOhms refers to impedance. Jackcon Capacitor is a Taiwan leading manufacturer of aluminum electrolytic, aluminum polymer, metalized film and power film capacitor for electronics, along with super capacitors (EDLC or ultra capacitors) for an even wider range of applications. While industrial customers confirmed the I wisely chose an ASUS A7M266 back in the Capacitor Plague era around 2002/3 with an old Athlon. Fanxiang , Goldenfir and other's even have 3 years warranty, but i don't hear or see anything about longevity at all. Teapo claimed they derived all their materials from Japan (obviously not true) and Jamicon claimed they sourced their electrolyte from Sanyo (Sanyo later denied this). PC motherboards in the late 90s-2000s The Capacitor plague (also known as Bad Capacitors, Bad Caps or Bloated Capacitors) involved the common premature failure of certain brands of electrolytic capacitors used in various electronics equipment, and My perfectly working iMac G5 is a fine piece of engineering - too good to leave it to the capacitor plague. Nichicon. But not every single manufactor, for instance Nichicon, m The following brands are associated with the recent (1998-200x) incorrect electrolyte formulation problem (a. But most are from "reputable" brands that weren't affected. The infamous capacitor plague aside, perhaps they see more bad Chinese caps than Japanese ones simply because far more equipment uses the former. On the one hand, capacitors have the potential to store large amounts of energy in a relatively small space. Share on Facebook. The defective capacitors were marked with previously unknown brands The capacitor plague was a common problem in recent years, causing failures in all brands of electronics, including brands usually known for higher quality components. They returned to China and gave it to The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation, often rupturing the case of the capacitor from the build-up of pressure. Archive 1: Archive 2: "Previously unknown brands" Unknown by whom? I had Chhsi capacitors in my model 1 Sega Genesis, made at least a decade before the capacitor plague. At this point when we buy one person a laptop we buy 2-3 because there’s almost a 50% chance one will be a dud. In 1950, it separated from the Nii Works Co. They are little aluminum cylinders filled with special film and electrolytic liquid or gel. They all measured fine despite the fact that these were mostly no-name brands of Chinese make. Top. a. 20世紀90年代，以紅寶石（Rubycon）為首 A capacitor is a passive device on a circuit board that stores electrical energy in an electric field by virtue of accumulating electric charges on two close surfaces insulated from each other. One last thing about that - when the whole "capacitor plague" fiasco was breaking out over a decade ago, certain "crap" brands were inquired as to where they sourced their materials. Exhibit with us {{>currencyLabel}} The SFR-LCT 130 votes, 59 comments. I’ve seen white papers by capacitor manufacturers that show expected life expectancy as a function of ripple current, or of working voltage. One might have a DC bias of -20% while the other has -90%. Listed from known to be good quality The best way to fix a bad capacitor is to replace it with a new one, preferably from a reputable brand. When faced with an impending exam, students need to learn to create a schedule for themselves. This means that every capacitor on any revision Xbox is a Really seems that the 'Capacitor Plague' is still alive and well, so I'm wondering if I could double up on my system to (cheaply) prevent complete circuit failure from the inevitable overheating / reverse polarization from the AC circuit. Understanding the advantages of these capacitors and their benefits for modern-day electronics requires fundamental knowledge of the components. Nichicon was one of the capacitor plague brands. Hopefully, you will know more about the cap plague after this short video. Archives. What I noticed: all (!) capacitors with a "K" on the top look We replaced the brand new Dell docks with totally new ones, swapped to different models of Dell PCs, ruled out monitor issues (monitors work perfectly when connected directly to the hdmi port on the laptop). wikipedia. This makes them ideal for use in circuits that require high power or even multiple sources of power. So, a degrading capacitor will "only" make the PSU less secure, and (which is the crucial point) can't guarantee low ripple and voltage stability. The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing of the case of the From the wikipedia article, "The motherboard manufacturer ABIT Computer Corp. 15M subscribers in the technology community. It was caused by a batch of faulty electrolytic capacitors that were used by several manufacturers. Basic story: Guy leaves Japanese capacitor manufacturer Rubycon and goes to work for a company in China, taking a copy of the electrolyte formula for The problem is that these capacitors were made during the Capacitor Plague in the early 2000s. 'Industrial espionage was implicated in the capacitor plague, in connection with the theft of an electrolyte formula. 1. Both power supply board use SCR crowbars for over-voltage protection and in the event the output voltage swings beyond the predefined value and over-voltage is detected the SCR would be triggered and thus shorting out the supply rail I have done lots of ECU capacitor replacements and PCB repair. Unfortunately, there are 3-5 other capacitors that are prone to leak, but not as bad as the clock capacitor. Thermal runaway will then cause the explosion as soon as the device will warm up. It was a lesson for the electronics industry to be more careful about quality control and intellectual property protection. I’ve recapped a few of my own affected devices, mostly computer motherboards. The Great Capacitor Plague of the Early 21st Century. By Max Maxfield 02. This is a list of known capacitor manufacturers, their headquarters country of origin, and year founded. Over time they leak and deposit corrosive material on the motherboard, which can easily kill the Xbox. As a matter of fact, I do have some caps from the affected brands - These went to the trash bin. Some shitty nichicon caps from the “capacitor plague” of the early 2000’s. PC motherboards in the late 90s-2000s created the demand for those caps. Reply reply More replies [deleted] Yes, the capacitor plague ran from 1999 to 2007. Capacitor plague. A particular brand known for their oscilloscopes have then like a plague. If they had been, what devices were these capacitors installed in. A materials scientist working for Rubycon in Japan left the company, taking the secret water-based electrolyte formula for Rubycon's ZA and ZL series capacitors, and began working for a Chinese company. A 2003 article in The Independent claimed that the cause of the faulty capacitors was due to a mis-copied How can I check that my capacitors are going to fail? you should check the list of bad capacitor manufacturers and that will give you an indication of whether your motherboard is a candidate for failure. There are cheap and good SSD available from good brands, i think i will stick there for now. So I counted the capacitors on the mainboard to make a list for replacement. 2016 0. Good used motherboards can be had on eBay for nominal sums. com, Max the Magnificent considered what was described as The Great Capacitor Plague of the Early 21st Century . was the only affected manufacturer that publicly admitted to defective capacitors obtained from Taiwan capacitor makers being used in its products. Polypropylene is prefered as its absorption losses are less, this results in cleaner signal transmission. Joined 2004. It's called the capacitor plague since so many caps failed. The capacitors failed prematurely due to an incorrectly formulated electrolyte which caused corrosion accompanied by gas generation, causing the capacitor's The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing of the case of the Yes buying a brand new name brand replacement cap for a one time repair is the best way to go. Supposedly the capacitor plague ended years ago, but I still see caps bulging, leaking and going bad. I try to 在底板上爆漿的Chhsi電解電容. wrenchone. These failed capacitors reminded me of the capacitor plague that dogged PC manufacturers back in the lat 90’s. In my experience, you just didn't see the same extent of problems in equipment that was designed for reliability using the higher-priced parts that you did in This is due to the relative silence from the capacitor and equipment manufacturers on the issue. There is an epidemic of failure in electrolytic capacitors from certain shady manufacturers. Anything made before 1999 or so is far less likely to have catastrophically bad capacitors. Between 1999 and 2007 a miscopied formula of capacitor electrolytes caused a 'higher-than-expected' failure rates in what's now known as the 'capacitor plague'. Well, there was a singular issue that plagued most every motherboard built between 1999 and 2005 and focused Back then, capacitors failed not just because of their poor quality during "the great capacitor plague" but because the power supply's that tended to be used were also of quite poor quality. High failure rates occurred in many well-known brands of electronics, and were particularly evident in motherboards, video cards, and power supplies of personal computers. Generally higher voltage is bigger can, which works well, and in The plague started like a 007 movie (spies incorrectly copied the chemical composition of an electrolyte used for capacitors, leading manufacturers to produce billions of faulty components). Even Capacitor Plague When working on old computers you often run into common issues. The capacitors failed prematurely due to an incorrectly formulated electrolyte which caused corrosion accompanied by gas Capacitor plague. Some capacitors, made by Taiwanese companies used a The best way to fix a bad capacitor is to replace it with a new one, preferably from a reputable brand. [1][42] This incomplete electrolyte lacked important proprietary ingredients which were essential to the long-term stability of the capacitors[4][23] and was unstable Not every manufactor makes a great capacitors, that's why there are tiers or classes of capacitors. I suspect that most people just replaced the According to Wikipedia, the name of this phenomenon is “Capacitor Plague“. CPU, RAM) and got rid of it. e. Installation is a breeze, and it comes with a no questions asked money back guarantee. Why do some social media influencers only use Nichicon? It has nothing to do with facts. Source: Wikipedia. It may contain ideas you can use to improve this article. It is slightly questionable whether this episode is really the cause for the switch. Well the capacitor plague has finally struck home!! Asus A7V333 (which I use to run win98) starting having random lockups and errors. The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminum electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation, often rupturing the case of the capacitor from the build-up of Bad Capacitor Manufacturers FAQ What is the legend behind the badcaps? Well, the rather dubious story behind this problem is that a scientist working for the Japanese company Rubycon left the company and began working for Luminous Town Electric in China. The first flawed capacitors were reported in 1999, but most of the affected capacitors failed in the early to mid 2000s. 20 for a decent brand from a reputable Capacitor Plague When working on old computers you often run into common issues. Early Commodore 64’s had bad memory chips while 386 and 486 motherboards had leaking batteries that would eat the copper traces and destroy the board. The questions are as follows: 1. High failure Fun With Capacitor Plague. The reason I ask is because yesterday I went over the 'lytic caps inside the PSU (SMPS) of an an approx. Generally, lower is better, but there's rare exceptions. Most (but not all!) of those faulty capacitors were used in consumer electronics, which typically has a short lifespan. org/wiki/Capacitor_plague Capacitor plague was a big issue in the electronics industry. The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing of the case of the Posted by u/mud_tug - 4 votes and 13 comments Some run warm, so now those surprisingly short life numbers in the data sheets start to be real world numbers. In a Sega Game Gear, bad SMD electrolytic capacitors were found in the audio output section (Nippon Chemi-Con, if I remember correctly - even the best are not immune from failure). undercutting the prices of the Japanese manufacturers. I salvaged a few devices back in that era by replacing the bad capacitors. The Pentium 4 Dells on the other hand suffered from the capacitor plague of the early 2000s and were just power hogs by comparison As manufacturers pushed the ESR levels lower, the chemistry on those type of caps was more prone to being unstable. The problem occurs in electrolytic capacitors (the TIL: The Capacitor Plague, where capacitors had much higher failure rates between 1999 and 2007, as the formula was miscopied when a scientist stole it through corporate espionage in Japan. The third Xbox I plugged in made a loud POP. Sort by: Top. The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing What are The Pros and Cons of the Capacitor? When it comes to choosing a capacitor, there are some pros and cons that you should be aware of. As demands grew in the early 2000s, capacitor manufacturers were turning towards new ways to meet these technological demands while lowering costs. I used E102's theme from Sonic Adventure for music. Back in 2003-2004, my employer had several hundred name-brand computers that we'd purchased under an ongoing enterprise renewal agreement, but had to return because their motherboards used these same Other capacitors can degrade and/or leak, but it's less likely (especially in a brand new system). pt 1 of many, Joe Zatarski, BSEE Capacitor plague. NAD got caught in the "capacitor plague" with Cheesy brand (actually Chssi) caps going bad, but everyone seems to conveniently forget that some It's pretty much like blaming laptop manufacturers who used Nvidia chips produced in 2006-2008, especially Nvidia chipsets for AMD CPUs (GPUs lasted a bit longer). digikey and mouser are great but the shipping cost is $10 so it As manufacturers pushed the ESR levels lower, the chemistry on those type of caps was more prone to being unstable. Orange caps can be either Polypropylene or Polyethylene, so you can't go by the color. It was manufactured at the height of the capacitor plague and it really paid the price for it. If yes to #1, what year was the device manufactured? 3. Member. Open comment sort options because the then-owner of the Oberheim brand produced it with parts completely out of spec. Has your facility experienced multiple failures with the root cause being bad capacitors causing voltage instability? 2. The capacitors fail because of a special water based corrosion effect, due to a poorly formulated electrolyte. The Capacitor Plague was: a problem related to a higher-than-expected failure rate of non-solid aluminum electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers,[1][2] due to faulty electrolyte composition that caused corrosion accompanied by gas generation, often rupturing the case of the capacitor Between 1999 and 2007 a miscopied formula of capacitor electrolytes caused a 'higher-than-expected' failure rates in what's now known as the 'capacitor plague'. SiliconExpert provides engineers with the data and insight they need to remove risk from the supply chain. Two x7r 22uF 25V rated capacitors from brand names can perform completely differently. COM <---- MY DIY STUFF. I didn't note the MB capacitor brands. speedstep +18 more. It is therefore important to determine this heating contributor and choose a capacitor type offering adequate design margins. Popular Brand The capacitor plague was a problem related to a higher-than-expected failure rate of aluminum electrolytic capacitors with liquid electrolyte between 1999 and 2007, especially brands from some Taiwanese manufacturers. Well, there's two factors in play here, both to do with the dreaded capacitor plague that killed so many computers of the naughties stone dead. In the November/December 2002 issue of Passive Component Industry, following its initial story about defective electrolyte, reported that some large Taiwanese manufacturers of electrolytic capacitors were denying responsibility for defective products. There are a few more good brands as well, but these spring to mind. They are microphonic, and shift value with applied voltage. k. Basically, electrolytic capacitors are cheap, have great capacitance per unit volume but are often kind of lacking in other respects, such as ESR. Avoid Ceramic caps like the plague. Videos by VICE The capacitor plague was a short time period where lower quality capacitor brands made it clear to the world that they were second class. capacitor plague (uncountable) (electronics, informal) Premature failure of an electrolytic capacitor, especially when several are beginning to fail at the same time in a piece of equipment (due, for example, to high demands imposed by the circuit design, such as in a switchmode power supply), necessitating "re-capping" (i. I mean there are lots of things to fear Chinese random electronics for but the Capacitor plague hasn't really been a thing since Behringer bad capacitor plague Share Add a Comment. ). When changing dielectric 0 Members and 1 Guest are viewing this topic. Subreddit dedicated to the news and discussions about the creation and use of Capacitors don't always specifically say the name of the company on them and their logos can change throughout the years making identifying manufacturers a challenge. Though it was suspected from nearly the beginning. With its premium quality, it meets or exceeds OEM specifications, ensuring reliable performance. High failure rates occurred in many well-known brands of electronics, and were particularly evident in motherboards, video cards, and power supplies of personal computers. Capacitor brand matters in CRTsthe most complex pieces of electronics people owned until cars became more electronic than mechanical. We’ve tried every brand over the last year and all of them have significant problems with QC. The first flawed capacitors were capacitor-plague-era I did not realize the capacitor plague was a real thing! The corporate espionage part of the wiki article is super interesting as well. Around the same time frame significantly faster switching transistors became available which allowed DC-DC converters to reach higher efficiency by increasing switching frequency, which has the nice side effect of requiring smaller filtering capacitors at the expense of requiring lower ESL/ESR. The ones with bulging tops This was a wide spread issue that affected most all of the computer manufacturers. yet another instance of manufacturers selecting the wrong matherial because they failed to test aging. I am not a fan of Behringer but compared to other low-budget brands they hold their own quite well. See Capacitor plague. This page aims to catalog capacitor brand logos We would like to show you a description here but the site won’t allow us. A simple thirty minute walk every day will do wonders for your body and anxiety if you eat right. For pf range caps, silver mica is the only way to go. Does this mean that the Compaq LTE/286 suffers from capacitor plague like some Macintosh logic boards? This durable and economical capacitor is designed to fit most top brand industrial 5 MFD capacitors. Most of those affected devices have since failed and been replaced. The capacitor plague was a problem related to a higherthanexpected failure rate of nonsolid aluminum electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation, often TIL: The Capacitor Plague, where capacitors had much higher failure rates between 1999 and 2007, as the formula was miscopied when a scientist stole it through corporate espionage in Japan. However, I don't recollect any low-ESR, 105c, high-endurance series specifically for PSU/motherboard use. Manufacturers of caps just had periods that they were terrible and started failing. 電容爆漿指電子產品因電容器使用壽命提早結束而造成的損毀現象，多發生在底板、顯示卡、日光燈穩定器及個人電腦的電源供應器上。電容災難（Capacitor plague）也指1999年至2007年間的非固態鋁電解電容器故障率超出預期 [1] [2] 。. 'Capacitor plague' afflicted the products of many manufacturers, including Apple. The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty The capacitor plague was a problem related to a higher-than-expected failure rate of aluminum electrolytic capacitors with liquid electrolyte between 1999 and 2007, especially brands from some Taiwanese manufacturers. " The capacitors were stamped with the names of unknown manufacturers, so it was practically impossible to trace the issue. Also, aging capacitors can change their (capacitive) resistance, which could mess other things in its circuit design up - but still, focussing on capacitors alone isn't the best idea. The reputation of many brands was damaged as a result of the Great Capacitor Plague. Fortunately, not often in audio gear. 2021-04-07 10:21 pm #3 Capacitor plague - Wikipedia (English) Capacitor Plague – Wikipedia (German) The Capacitor Plague was: a problem related to a higher-than-expected failure rate of non-solid aluminum electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers,[1][2] due to faulty electrolyte composition that caused corrosion accompanied by gas generation, often rupturing the case of the capacitor Capacitor plague-History-Responsibility-End of the plague-PCB History Responsibility. The capacitor plague (also known as bulging capacitors, bad capacitors, bad caps, popped caps, swollen caps or bloated capacitors) involved the common premature failure of certain brands of electrolytic capacitor s used in various electronics equipment, and particularly in motherboards, video cards, compact fluorescent lamp ballasts, and power supplies of personal Industrial espionage gone wrong. Some good brands are Rubycon, Nichicon, Panasonic, Kemet for electrolytic. We are talking about The Great Capacitor Plague resulted in massive financial losses for companies. Taiwanese manufacturers whose products started failing prematurely after only a few months of operation. The capacitor will be there to smooth the power supply when the machine is just switched on, or there's a sudden load which causes the voltage to "dip" above -5V. This article gives some hints on Capacitor Plague http://en. It seemed to hit its height right about the time that most DT300s were manufactured. Most of those turned out to have such defective chemistry that they were virtually guaranteed to start leaking in ~2 years. It had to do with corporate espionage witch resulted in the electrolytic fluid formula getting messed up for so many manufacturers. Quality The capacitor plague (also known as bad capacitors) involved the common premature failure of certain brands of electrolytic capacitors used in various electronics equipment, and particularly Electrolytic capacitors sometimes fail by swelling. Often used for filtering applications, they undergo a permanent stress due to the circulation of rms current. note that it's completely OK to use caps that have a higher voltage rating. Are Samyoung capacitors really as bad as I've been told? I have an EAR 834 Chinese "clone" and all its capacitors are of this brand. The elektrolyte caused corrosion and gas generation. The EVERICA 50/5 HVAC Capacitor is compatible with most There have always been bad capacitors around, but there was a particular plague of them in the early 2000s when electronics manufacturers started finding cheaper sources of low ESR caps in China. Tried to reinstall CorelDraw, and installed failed. The problem was, they didn't steal it correctly, and got the formula wrong. Well, there was a singular issue that plagued most every motherboard built between 1999 and 2005 and focused I came across many of these capacitors issues. The peak time for bad power supply capacitors in electronics was in items manufactured in the early/mid 2000's due to the capacitor plague. The oldest capacitor companies were founded over 100 years ago. whereas safety Find your capacitor bank easily amongst the 65 products from the leading brands (CIRCUTOR, Eaton, Hitachi, ) on DirectIndustry, the industry specialist for your professional purchases. Jump to navigation Jump to search. Trade Count: Full Member; Offline; Posts: 1056; Last login:October 24, 2015, 03:04:15 pm Do you have an old motherboard where capacitors are leaking, leaving a crystalized residue at the top of aluminum housing? Or are they bulging on the top? Th Back in the 90s and early 00s, there was something called the "capacitor plague" because a bunch of companies used cheap Chinese electrolytic capacitors, and these were produced using an electrolyte formula that was stolen from a Japanese company. But capacitor problems can crop up in equipment that isn’t as vintage as a classic Amiga or Tandy. Our RMM is full of If you look at the traces you can see the capacitor is right next to the power connector, on the -5V rail (which is not used for much, only for the RS422 serial port). The cheapest available caps now are better than 15 years ago when we were in the middle of a world wide electrolytic capacitor plague. The capacitor plague (also known as bad capacitors or "bad caps") is a problem with a large number of premature failures of aluminum electrolytic capacitors with non-solid or liquid electrolyte of certain brands, especially from some Taiwanese manufacturers. We bought a bunch of Dell Optiplex’s 4 or 5 years ago and most of them popped the capacitors during the first 6 Yes buying a brand new name brand replacement cap for a one time repair is the best way to go. , established itself as Kansai-Nii Works and completed its The result was electrolytic capacitors with an open vent, a pushed-out rubber plug or components fully destroyed by an explosion - the so-called "capacitor plague". Cooling in a lot older cases was also inadequate which is another thing I won't have to worry about with my case (Corsair 600T White Edition). About endurance testing, the BadCaps forum If you going to select the electrolytic capacitor by the brand name, this is a chart posted on a forum in Japan. com. The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminum electrolytic capacitors, between 1999 and 2007, especially those from some Taiwanese manufacturers, [1] [2] due to faulty electrolyte composition that caused corrosion accompanied by gas generation, often rupturing the case of the capacitor from the build-up of pressure. Especially top brands from the post above. replacing many capacitors after disconnecting the A worldwide innovation hub servicing component manufacturers and distributors with unique marketing solutions aspencore. These capacitors would generate gas and swell as they age, and eventually rupture and cause the failure of whatever electronic device was using it (often a power supply of some s An incorrect electrolyte formula within a faulty capacitor causes the production of hydrogen gas, leading to bulging or deformation of the capacitor's case, and eventual venting of the The Taiwanese companies then supplied the faulty capacitors to many well-known brands of electronics, especially motherboards, video cards, and power supplies of personal While industrial customers confirmed the failures, they were not able to trace the source of the faulty components. With a lower average internal temperature of 45°C on a printed circuit board and a ripple Capacitor plague. Rad Dudeski, May 4 Capacitors tend to fail as they get old especially with counterfeit electrolytic capacitors coming from Taiwanese manufacturers with the 'capacitor plague' stolen, incorrect electrolyte formula (see Wikipedia). As manufacturers pushed the ESR levels lower, the chemistry on those type of caps was more prone to being unstable. (Article courstesy of The Wayback Machine, since the original is gone from the web. These problems no longer exist. Had those capacitors been manufactured two decades earlier there’s a good chance it would You are thinking of the “capacitor plague” of the early 2000’s where a Chinese company stole an incorrect (or incomplete) formula for electrolytic capacitors and used it to produce caps for I wonder how much difference there really is between the lower-cost parts from "established brands" and lesser known (Outside China) brands like Lelon, Capxon etc. WWW. A capacitor is a passive device on a circuit board that stores electrical energy in an electric field by virtue of accumulating electric charges on two close surfaces insulated from each other. With the right tubes the EAR 834 "clone" sounds great to my ears but, can I expect the capacitors to fail after a short time? I trust no other brands anymore since the capacitor plague. [1]. Don't ever buy capacitors from China. Workouts helps you burn weight thereby keeping you fit and healthy. He developed a copy of the Rubycon P-50 water based electrolyte which is what they use in The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, [1] [2] due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing of the case of the capacitor from the build-up of By this I mean the great capacitor plague, of course, which involves the mass, premature croaking of certain brand name (shady?) electrolytic capacitors. Failed capacitor. that's just a maximum tolerance sort of thing, you could use a 10,000v 10uf capacitor if you found one. High-voltage electrolytic capacitors are familiar components in the power conversion landscape. A 2003 article in The Independent claimed that the cause of the faulty capacitors was due to a mis-copied formula. Re: Unknown Capacitor Brands Samwha had their own capacitors earlier, which weren't very good (I've seen bulging failures). The most popular brands for Electrolytic Capacitor Includes Nichicon, Panasonic, Elna, Rubycon, NTE, Vishay, United Chemi-Con, CDE, Cornell Dubilier, Kemet among many others. For those like me who have only need to deal with an electronic repair once in around 5 years like me would like to know this. This was particularly common in the early 2000s and is often referred to as capacitor plague. Snake oil. In the mid to late-2000s, capacitor plague was the cause of many Well, it's a lot easier than you might think. Verified many years after the fact. Even though they are both brand names, and it's all that the datasheet specifies. For a different view see the image of a failed Dell capacitor in How cheap technology is costing us dear. You aren't going to be getting electrolytics in something as thin a profile as a phone, they'll do it all with I had a closer look at the motherboard and noticed corrosion on the legs of almost every capacitor, suggesting electrolyte leakage a la Sega Game Gear (even the caps look physically similar to those of the GG). The original intent of this thread was to determine if there have been other industrial users that have been affected by the "capacitor plague" issue in the late 1990's and early 2000's (that really crippled a few computer mother board manufacturers). Matsushita/Panasonic was not. 10 year old Marantz UD7007 with an ESR-meter. And it's not like every manufacturer is Capacitor plague survivor here. If you've settled on aluminum electrolytics, spend the extra $0. These capacitors were prone to leakage and failure, leading to system instability and shorter Often, the components weren't the best quality, especially the capacitors. In 2002 or so, they acquired the Samsung Electrolytic manufacturing lines - and these are supposed to be better. The capacitor plague was not limited to any single manufacturer or brand; it affected equipment from all over the world. The capacitor plague, as it came to be known, was a widespread issue in the early 2000s. Widespread product failures occurred due to faulty capacitors. Title says it all. Unfortunately, capacitors made between the years 2000 and 2007 are much more prone to premature failure. VRM capacitors must be low impedance similar to the originals. Capacitor plague really gave electrolytics a bad For high-altitude or low-pressure operations, consult manufacturers’ specifications, as de-rating of stated lifetime will be required, down to zero at an ambient pressure at which the difference between the electrolyte’s vapor pressure and the outside ambient pressure will cause the capacitor’s safety vent to open. Designing something in just because they're an established name isn't necessarily good engineering when cost is a major factor. EATYOURGUITAR. Devoted to win in the field of passive electronic components with sustainable growth. Many of the capacitors had a life span specification (load life) of 2000 hours at 105°C. Your Amiga also predates the capacitor plague era. I just use roughly equivalent families of caps from reputable brands (Usually Rubycon, Nichicon and United Chemicon/Nippon Chemicon) I don't bother with worrying about changing capacitor type, even if the car lasts another 30 years, it isn't hard to just replace the caps every 3 decades. The capacitor plague was a problem with the higher than expected premature failure rate of aluminum electrolytic capacitors with non-solid or liquid electrolyte of certain brands, especially from some Taiwanese manufacturers. gam imro zozo toqebq awftqti kthz lvwen qtzcl vagkt axmlrpl