Understanding Electronics http://www.
kitronik.
co.
uk Ceramic disc capacitor values
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kitronik.
co.
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Kitronik Ltd – Understanding ceramic disc capacitor values
Ceramic disc capacitor values
Ceramic disc capacitors like the one on the left...
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Understanding Electronics http://www.
kitronik.
co.
uk Ceramic disc capacitor values
www.
kitronik.
co.
uk Page 1 of 1
Kitronik Ltd – Understanding ceramic disc capacitor values
Ceramic disc capacitor values
Ceramic disc capacitors like the one on the left are printed with a code.
This code
indicates what the capacitance of the capacitor is.
The example capacitor has a 3
digit number printed on it (103).
The first two digits, in this case the 10 give us the
first part of the value.
The third digit indicates the number of extra zeros, in this case
3 extra zeros.
So the value is 10 with 3 extra zeros, or 10,000.
Ceramic disc capacitor codes are always measured in pico Farads or pF.
So it is a
10,000pF capacitor.
pico Farads/nano Farads
When lots of zeros need to be written to specify the capacitor value, the capacitance can be given in nano
Farads (nF), where 1000 pF = 1 nF.
So in the example the 10,000 pF capacitor can be written as a 10 nF capacitor.
Two digit markings
When a
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