Ceramic Disk Capacitor Markings

The example capacitor has a 3 digit number printed on it 103.

Ceramic disk capacitor markings.

The first is used with small ceramic capacitors and appears as a single letter. I have always been unaware of the markings on a disc ceramic capacitor such as j m and other symbols. The first two significant digits represent the first two digits of the actual value which is 47. They are very easy to decode to find the value.

When the first two numbers are multiplied with the multiplier the. There are several tolerance marking systems used. The third digit is the multiplier which is 1000. Ceramic disc capacitor code label will normally consist of three numbers followed by a letter.

This code indicates what the capacitance of the capacitor is. Method of finding the value meaning of codes of capacitor. The early style of the ceramic disc capacitor could be more cheaply produced than the common ceramic tube capacitors in the 1950s and 1970s. Read the tolerance code on ceramic capacitors.

In addition to the capacitance value and possibly the working voltage or breakdown voltage the capacitor may be marked by its tolerance. Typically the markings on a capacitor may give the figures like 22 and 6v. The first two digits in this case the 10 give us the first part of the value. Ceramic capacitors are generally smaller than types like electrolytic capacitors and therefore the markings need to be more concise.

Click here for resistor colour code and smd resistor code ceramic disc capacitors have two to three digits code printed on them. The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. This indicates a 22µf capacitor with a maximum voltage of 6v. Two of the most common are shown here.

Taking a look. Ceramic disc capacitors like the one on the left are printed with a code. The letter j signifies the tolerance of 5.