Ceramic Capacitor Markings 104

In addition to the capacitance value and possibly the working voltage or breakdown voltage the capacitor may be marked by its tolerance.

Ceramic capacitor markings 104.

Ceramic disc capacitors have two to three digits code printed on them. Sometimes figures such as 10n will be seen and this indicates a 10nf capacitor. The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. The first is used with small ceramic capacitors and appears as a single letter.

Often the value may be given in picofarads. When the first two numbers are multiplied with the multiplier the resulting value is the value of the capacitor in picofarads. Two of the most common are shown here. The 3 digit capacitor code 104 stands for 100 nf in words.

The smallest capacitors made from ceramic film or tantalum use units of picofarads pf equal to 10 12 farads. Larger capacitors the cylindrical aluminum electrolyte type or the double layer type use units of microfarads uf or µf equal to 10 6 farads. There are several tolerance marking systems used. A variety of schemes may be used.

One hundred nanofarads capacitance.