Capacitor plague-History-Responsibility-End of the plague-PCB

- Feb 10, 2017-

Capacitor plague-History-Responsibility-End

of the plague-PCB

History

Responsibility

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.

While industrial customers confirmed the failures, they were not able to trace the source of the faulty components. The defective capacitors were marked with previously unknown brands such as "Tayeh", "Choyo", or "Chhsi". The marks were not easily linked to familiar companies or product brands. Failed e-caps with well known brands may have had failures not related to defective electrolyte.

The motherboard manufacturer ABIT Computer Corp. was the only such manufacturer that publicly admitted to defective capacitors obtained from Taiwan capacitor makers being used in its products. However, the company would not reveal the name of the capacitor maker that supplied the tainted products.

End of the plague

With the first publicized press releases about the widespread problem with premature failures of Taiwanese electrolytic capacitors appearing in September 2002, it might be assumed that by mid-2003 the affected capacitor manufacturers would have changed their production process and used a "correct" electrolyte mixture. Assuming a typically shortened life span of about 1.5 to 3 years for the faulty capacitors, the failures should have remained common from mid-2003 to the start of 2005, then tapered off through mid-2006. The last of the bad capacitors should have failed by 2007. Commentators on the Internet often predicted the year 2007 would be the end point for "bad capacitors".


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