How To Know Ceramic Capacitor Value

The color of the ceramic body material can be sometimes helpful.

How to know ceramic capacitor value.

A ceramic disc capacitor does not have a polarity and connects in any direction on the printed circuit board. Similarly n51 indicates a 0 51nf or 510 pf capacitor etc. Class 1 caps np0 c0g ceramics. Like resistors has some coding which needs to decipher printed digits on ceramic capacitors also needs deciphering.

Hence the value of the capacitor above is 47000 pf 5. A variety of schemes may be used. Imagine if we had to shrink their complete specifications down and print them on the capacitor. 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.

This is why manufacturers started using a three digit code to mark ceramic capacitors. Here is how to read ceramic capacitor values. Surface mount capacitors are often very small and do not have the space for markings. 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.

How to calculate the value of ceramic non polarized capacitors. Reading values printed on electrolytic capacitors is easy digits on ceramic capacitors need to know some theory. When the first two numbers are multiplied with the multiplier the resulting value is the value of the capacitor in picofarads. 99 9 of them are not marked at all.

Sometimes figures such as 10n will be seen and this indicates a 10nf capacitor. A ceramic capacitor is a fixed value capacitor where the ceramic material acts as the dielectric it is constructed of two or more alternating layers of ceramic and a metal layer acting as the electrodes the composition of the ceramic material defines the electrical behavior and therefore applications. The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. How do i identify an smd ceramic capacitor and how do i find its value you don t.

We d need a microscope to read them. Ceramic disc capacitors have two to three digits code printed on them. There are special codes and marking on capacitor which tell about the value of capacitor. 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.

It s difficult to read their values even with the code. About ceramic capacitor codes. Below is a very useful chart for calculation the right value of ceramic non polarized capacitors.