Ceramic Disk Capacitor Markings

When the first two numbers are multiplied with the multiplier the.

Ceramic disk capacitor markings. Click here for resistor colour code and smd resistor code ceramic disc capacitors have two to three digits code printed on them. The letter j signifies the tolerance of 5. The first two significant digits represent the first two digits of the actual value which is 47. The example capacitor has a 3 digit number printed on it 103.

In addition to the capacitance value and possibly the working voltage or breakdown voltage the capacitor may be marked by its tolerance. The early style of the ceramic disc capacitor could be more cheaply produced than the common ceramic tube capacitors in the 1950s and 1970s. Two of the most common are shown here. The first is used with small ceramic capacitors and appears as a single letter.

Ceramic disc capacitor code label will normally consist of three numbers followed by a letter. Taking a look. A variety of schemes may be used. The third digit is the multiplier which is 1000.

Ceramic capacitors are generally smaller than types like electrolytic capacitors and therefore the markings need to be more concise. The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. This code indicates what the capacitance of the capacitor is. There are several tolerance marking systems used.

Typically the markings on a capacitor may give the figures like 22 and 6v. 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 indicates a 22µf capacitor with a maximum voltage of 6v. Read the tolerance code on ceramic capacitors.

They are very easy to decode to find the value. I have always been unaware of the markings on a disc ceramic capacitor such as j m and other symbols. Ceramic disc capacitors like the one on the left are printed with a code.