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Groups > comp.os.linux.misc > #88674
| From | alan_m <junk@admac.myzen.co.uk> |
|---|---|
| Newsgroups | comp.os.linux.misc, uk.d-i-y |
| Subject | Re: Anyone else seen this. |
| Date | 2026-07-05 12:05 +0100 |
| Organization | At Home |
| Message-ID | <naus2rFdlsrU1@mid.individual.net> (permalink) |
| References | <1128k1p$3fgrb$1@dont-email.me> <nas58eFlreU1@mid.individual.net> <5oo9EBFQWXSqFw2g@bancom.co.uk> <natf7gFmk5sU1@mid.individual.net> <112d846$v187$1@dont-email.me> |
Cross-posted to 2 groups.
On 05/07/2026 10:28, The Natural Philosopher wrote:
> On 04/07/2026 23:19, jkn wrote:
>>> And.. change the mostly useless power supply Capacitors!..
>>
>> Is this actually true, specifically referring to Draytek routers? Or
>> just to Set Top Boxen (in which case I probably agree)
>>
> No. And in fact mostly today capacitors are not as prone to failure as
> they once were.
>
> There was a period where bad chemistry was taking out millions of them.
> They have all gone
Yes, especially equipment that came out of S Korea. Often the ones I've
had to replace have brand names that maybe pretend that they are from a
well known company such as SamYoung (Not Samsung!). I've generally found
that the failed capacitors tend to be physically smaller (often the same
diameter but shorter) than replacements for reputable capacitor
manufactures.
There is still the 10C rule for electrolytic capacitors where in general
the life span doubles with every 10C drop in temperature, and shortens
by x2 for every 10C increase in temperature.
A reputable capacitor manufacture may quote 10,000 hours at 85C which is
approx 1.3 years if your equipment is operated continuously at 85C. In
reality well designed equipment would be running at, say, a maximum of
60C so life expectancy is 5+ years when operated continuously.
More reputable equipment manufactures would use capacitors rated and
10,000 hours at 105C or 10,000 hours @ 125C. Obviously the latter cost
more and unlikely to be fitted in cheap electronics. However, for repair
the difference in price for sourcing a one off of the better specified
capacitor is minimal vs the cost of 85c capacitor. The recommendation
is to always go for the capacitor rated at 105C, and with a low Z, low
equivalent series resistance (ESR) if fitting to a power supply.
--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk
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Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 16:21 +0100
Re: Anyone else seen this. Andy Burns <usenet@andyburns.uk> - 2026-07-03 16:37 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:10 +0100
Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 16:45 +0100
Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 18:52 +0100
Re: Anyone else seen this. [Draytek rebooting] The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:17 +0100
Re: Anyone else seen this. [Draytek rebooting] The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:16 +0100
Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 22:29 +0100
Re: Anyone else seen this. [Draytek rebooting] Theo <theom+news@chiark.greenend.org.uk> - 2026-07-04 00:33 +0100
Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-04 07:45 +0100
Re: Anyone else seen this. [Draytek rebooting] The Natural Philosopher <tnp@invalid.invalid> - 2026-07-04 12:39 +0100
Re: Anyone else seen this. Theo <theom+news@chiark.greenend.org.uk> - 2026-07-03 17:43 +0100
Re: Anyone else seen this. Richard Kettlewell <invalid@invalid.invalid> - 2026-07-03 22:09 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:46 +0100
Re: Anyone else seen this. Pancho <Pancho.Jones@protonmail.com> - 2026-07-03 23:14 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:20 +0100
Re: Anyone else seen this. Adrian <diy@ku.gro.lioff> - 2026-07-03 17:51 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:26 +0100
Re: Anyone else seen this. Pancho <Pancho.Jones@protonmail.com> - 2026-07-03 19:28 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:28 +0100
Re: Anyone else seen this. "Jeff Gaines" <jgnewsid@outlook.com> - 2026-07-03 19:38 +0000
Re: Anyone else seen this. John Rumm <see.my.signature@nowhere.null> - 2026-07-03 21:15 +0100
Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 22:32 +0100
Re: Anyone else seen this. John Rumm <see.my.signature@nowhere.null> - 2026-07-04 00:30 +0100
Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-04 08:55 +0100
Re: Anyone else seen this. John Rumm <see.my.signature@nowhere.null> - 2026-07-04 12:36 +0100
Re: Anyone else seen this. Rich <rich@example.invalid> - 2026-07-04 05:30 +0000
Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-04 11:23 +0100
Re: Anyone else seen this. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-07-04 17:06 +0000
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-04 19:08 +0100
Re: Anyone else seen this. c186282 <c186282@nnada.net> - 2026-07-05 02:36 -0400
Re: Anyone else seen this. tony sayer <tony@bancom.co.uk> - 2026-07-04 22:05 +0100
Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-04 23:19 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:28 +0100
Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 10:38 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:53 +0100
Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 19:24 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 23:55 +0100
Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-05 12:05 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 13:57 +0100
Re: Anyone else seen this. tony sayer <tony@bancom.co.uk> - 2026-07-06 13:01 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-06 13:15 +0100
Re: Anyone else seen this. Rich <rich@example.invalid> - 2026-07-06 14:15 +0000
Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-05 09:18 +0100
Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 10:40 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:54 +0100
Re: Anyone else seen this. tony sayer <tony@bancom.co.uk> - 2026-07-06 13:06 +0100
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-06 13:18 +0100
Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-05 12:32 +0100
Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 17:24 +0100
Re: Anyone else seen this. c186282 <c186282@nnada.net> - 2026-07-06 00:49 -0400
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-06 12:24 +0100
Re: Anyone else seen this. "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-07-04 21:52 +0800
Re: Anyone else seen this. c186282 <c186282@nnada.net> - 2026-07-04 23:34 -0400
Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:50 +0100
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