Re: What is the expected lifetime for an electrolytic capacitor?
- From: "Arfa Daily" <arfa.daily@xxxxxxxxxxxx>
- Date: Fri, 23 Mar 2007 10:45:01 GMT
<meow2222@xxxxxxxxx> wrote in message
news:1174570113.266571.292880@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On 22 Mar, 12:17, d...@xxxxxxxxxxxxxx wrote:
I'm wondering what the expected lifetime is for electrolytic
capacitors in recent years. I'm sure temperature and operating
voltage play a role.
It varies hugely. Some have lives of thousands of hours, some of over
a century.
Ripple current also affects them.
Capacitors failng to do the job are often not down to bad caps, but
rather bad design with insufficient margins.
??????????? Isn't that rather what I was saying in that thread last week,
when you were contending that a 40v cap is good to 40 volts long term, and
implying that by saying anything different, I did not know what I was
talking about? Sorry to bring it up, and I really don't want to start all
that up again, but I was gobsmacked when I read what you now seem to be
saying ...
Arfa
I'm no fan of replacing good caps with other good caps that are just
as likely to fail, but if you've found bad caps in there then any
others the same make are probably best replaced.
NT
.
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