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Science Forum Index » Electronics Forum » Help Identifying Capcitor
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| Phillip T. Murphy |
 Posted: Fri Sep 05, 2003 6:36 pm |
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I need to replace a broken capacitor but am unsure what it is. It has an
underlined 47 on it, and that is it. It is a ceramic disc type.
I am guessing a .047uF (which is the same as a 47,000pF?)?
Any thoughts would be greatly appreciated.
Thanks,
Phillip |
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| Rob |
| Posted: Sat Sep 06, 2003 1:16 am |
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It would be helpfull to know the physical dimensions and type of
circuit. It is most likely 47pF is size is around 5mm, but could be
47nF.
"Phillip T. Murphy" <SpPtAmMurphy@bellsouth.net> wrote in message news:<QZ96b.84$W5.83@bignews4.bellsouth.net>...
Quote: I need to replace a broken capacitor but am unsure what it is. It has an
underlined 47 on it, and that is it. It is a ceramic disc type.
I am guessing a .047uF (which is the same as a 47,000pF?)?
Any thoughts would be greatly appreciated.
Thanks,
Phillip |
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| Back to top |
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| Robert Baer |
| Posted: Sat Sep 06, 2003 1:25 am |
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"Phillip T. Murphy" wrote:
Quote:
I need to replace a broken capacitor but am unsure what it is. It has an
underlined 47 on it, and that is it. It is a ceramic disc type.
I am guessing a .047uF (which is the same as a 47,000pF?)?
Any thoughts would be greatly appreciated.
Thanks,
Phillip
Be advised most ceramic capacitors are rated in picofarads, so it is
likely that was a 47pF capacitor.
A goodly number of the small pF caps are brown or light tan in color
and rated at 1KV; approximately 0.25 inches in diameter; no values are
ever underlined.
The majority of the 10nF-99nF capacitors are marked un microfarads: eg
0.01uF, 0.05uF (the closest i have to 47nF).
However, there seems to be at least one exception; i have a 15V 47nF
ceramic that is the same physical size as those 47pF caps with a similar
color.
This particular capacitor does have "473" underlined - note it is the
value in pF - namely 47*10E3 pF.
Perhaps you have something like this. |
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| Phillip T. Murphy |
| Posted: Sat Sep 06, 2003 7:00 am |
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Rob,
Thanks for the reply. I would say it is about 0.2 to 0.3 inches in
diameter. As to what type of circuit, it is an X10 dimmer switch, 110v.
Thanks again,
Phillip
"Rob" <rrjonasar@lineisp.co.uk> wrote in message
news:b7d6fa28.0309052316.6afdc6b@posting.google.com...
Quote: It would be helpfull to know the physical dimensions and type of
circuit. It is most likely 47pF is size is around 5mm, but could be
47nF.
"Phillip T. Murphy" <SpPtAmMurphy@bellsouth.net> wrote in message
news:<QZ96b.84$W5.83@bignews4.bellsouth.net>...
I need to replace a broken capacitor but am unsure what it is. It has
an
underlined 47 on it, and that is it. It is a ceramic disc type.
I am guessing a .047uF (which is the same as a 47,000pF?)?
Any thoughts would be greatly appreciated.
Thanks,
Phillip |
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| Back to top |
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