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Old 10-10-2005, 01:58 AM   #1
japlytic
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Question Are we losing confidence in Nichicon capacitors?

We have all heard about the Dell GX270 boards with bulging Nichicon capacitors.
Next, there is a Medion system with bulging Nichicon capacitors.
Nichicon has been in the industry since 1950.

Are we losing confidence in Nichicon low-ESR electrolytics?
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Old 10-10-2005, 06:19 AM   #2
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Default Re: Are we losing confidence in Nichicon capacitors?

This issue was due to one of two factors, both affecting the HM, HN series. A certain shift at Nichicon's Hong Kong plant was found to be over-filling the caps with electrolyte, thus causing their early failure. In an unrelated incident, some SARS disinfectants were found to harm the caps. I personally would use Nichicon, but have found a better price on ChemiCon KZE.
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Old 10-10-2005, 08:03 AM   #3
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Default Re: Are we losing confidence in Nichicon capacitors?

The company I work for - not in the computer biz - uses Nichicon a lot, though not the HM or HN series (we use 35V and higher, and those series don't go that high). In my testing, I see PR, PJ, PW, LXV, and LXZ as peers. FC doesn't fare as well, and PM (PL) does even worse. My testing is well beyond the parts' ratings, though. HE, KZE, and ZL have endured very well, and I see them as peers; YXG and FM haven't done as well as ZL, et al, but still much better than PW, et al. HE (and similar), KZE (and similar), FM, and most Rubycons use a different electrolyte technology than do PR, PJ, PW, FC, LXV, LXY, and LXZ, and are lower impedance (sometimes called "ultra-low impedance").
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Old 10-29-2005, 12:51 AM   #4
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Default Re: Are we losing confidence in Nichicon capacitors?

Hello. I don't think we're losing confidence in Nichicon capacitors. Nichicons can bulge as much as they want in Dells, and I'll still have confidence in their superiority in today's markets because they rarely fail else where.
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Old 10-29-2005, 12:56 AM   #5
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Default Re: Are we losing confidence in Nichicon capacitors?

I've only seen the HM and HN series nichi's fail. The PL and PM series are still very high on my ranks of good caps. Just avoid the HM and HN series caps.

Rubycon is by far my favorite brand though.
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Old 10-29-2005, 12:14 PM   #6
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Default Re: Are we losing confidence in Nichicon capacitors?

PM is basically lead-free PL.
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Old 12-08-2005, 12:37 AM   #7
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Default Re: Are we losing confidence in Nichicon capacitors?

I like to use the HE's because of the high life.

What is interesting is that higher life values occur if you can use higher than 10v or larger than 10mm diameter.

(and Digikey stocks them)
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