How To Know Ceramic Capacitor Value

How to calculate the value of ceramic non polarized capacitors.

How to know ceramic capacitor value.

Smd ceramic capacitor codes. Ceramic capacitors are tiny. Reading values printed on electrolytic capacitors is easy digits on ceramic capacitors need to know some theory. Imagine if we had to shrink their complete specifications down and print them on the capacitor.

Similarly n51 indicates a 0 51nf or 510 pf capacitor etc. Sometimes figures such as 10n will be seen and this indicates a 10nf capacitor. Surface mount capacitors are often very small and do not have the space for markings. Below is a very useful chart for calculation the right value of ceramic non polarized capacitors.

99 9 of them are not marked at all. Hence the value of the capacitor above is 47000 pf 5. This letter represents the tolerance of the capacitor meaning how close the actual value of the capacitor can be expected to be to the indicated value of the capacitor. We d need a microscope to read them.

About ceramic capacitor codes. Ceramic capacitors which are usually tiny pancakes with two pins typically list the tolerance value as one letter immediately after the three digit capacitance value. Like resistors has some coding which needs to decipher printed digits on ceramic capacitors also needs deciphering. Ceramic disc capacitors have two to three digits code printed on them.

Class 1 caps np0 c0g ceramics. This is why manufacturers started using a three digit code to mark ceramic capacitors. A ceramic disc capacitor does not have a polarity and connects in any direction on the printed circuit board. Often the value may be given in picofarads.

The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. When the first two numbers are multiplied with the multiplier the resulting value is the value of the capacitor in picofarads. If you are new to capacitor codes then the best way to start is with a chart because that way you can see the arrangement of the code. The color of the ceramic body material can be sometimes helpful.

A variety of schemes may be used. It s difficult to read their values even with the code. There are special codes and marking on capacitor which tell about the value of capacitor.