Nichicon HN M Series.
I find it interesting, and somewhat scary, that the HN M series is failing in both the Apple G5's and the OEM Intel Boards (either Foxconn or Asus, not sure). Any thoughts on trends or has anyone found any other cases of the HN M series taking a crap? Counterfeits? Remarking? Incorrect chemical forumla?
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this was just discussed on another thread, I believe... one shift at one nichicon assembly line was overfilling the caps with electrolyte, or something similar to that.
--Randy -
Willawake posted this link which talks about the problem:
http://www.ait.iastate.edu/sales/showitem.php?id=41Last edited by willawake; 05-12-2005, 03:59 AM.Comment
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I should read more before I open my mouth. Thanks all, and I hope that this is the only time that Nichicon screwed up.Comment
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nope
read down to : There were an enormous number of electrolytic capacitors that went boom in Car audio systems. Surprisingly, it was only the capacitors made by Nichicon and almost always the 7mm high capacitors. Pity, nichicon was the low bidder on almost everything, and they were the only supplier in the world of 7mm high axial electrolytics.
http://slashdot.org/articles/02/11/04/1751210.shtmlComment
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this problem has existed longer than anyone wants to admit.
just recapped a asus p4b with these caps blown up.
this board is what 2-3 years old?
btw this is the second time i have had this board for service.
first time just the 16v caps at the vrm input were leaking.
3 months later ALL nichicon caps are vented/leaking.Comment
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Hello All, I have on the bench a couple of PSU's which have some failed Nichicon PL series caps. They didn't "puke" their guts through the top, but instead "diarrhea'ed" corrosive brown electrolyte through the bottom, down the legs and onto the board. On one cap, the electrolyte rotted the cap right off the board leaving 2 little stubs, and also corroded a trace on the foil side.
The PSU's are Power-One MAP series and are ringing-choke topology. The semiconductors have date codes in 1993. The PSU's were used in a commercial application, fan-cooled. They had failed... -
I want to calculate capacitor ESR referring to below guide.
https://forum.digikey.com/t/calculat...-from-tan/2633
I must find out dissipation factor(Tan(δ)) for nichicon lxj series(6.3v 1500uf,25v 1000uf ,10v 2200uf)
I finally found out datasheet which has all series of nichicon capacitor.But unfortunately, It removed old nichicon capacitor.
Is there anyone who still has old nichicon datasheet which has information of LXJ series? -
A few days ago,I destroyed one of my japanese retro game console by pluging it to 220v outlet.
https://www.badcaps.net/forum/troubl...e-been-blew-up
and I finally fixed​ this retro game console by soldering varistor and glass fuse.
But I noticed that When I measure voltage of PSU's 5pin connector, it is 8.80-9.07v, 5.13v,3.40-3.48v,GND,GND instead of its rated voltage of 9v 5v 3v GND GND.
I have spare console... -
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