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Help Identifying Capcitor

  • Thread starter Phillip T. Murphy
  • Start date
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Phillip T. Murphy

Jan 1, 1970
0
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

Jan 1, 1970
0
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.
 
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Robert Baer

Jan 1, 1970
0
Phillip T. Murphy said:
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

Jan 1, 1970
0
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
 
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