Ceramic Disk Capacitor Markings

I have always been unaware of the markings on a disc ceramic capacitor such as j m and other symbols.
Ceramic disk capacitor markings. Read the tolerance code on ceramic capacitors. Ceramic disc capacitor code label will normally consist of three numbers followed by a letter. The third digit is the multiplier which is 1000. There are several tolerance marking systems used.
When the first two numbers are multiplied with the multiplier the. Two of the most common are shown here. The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. Ceramic disc capacitors like the one on the left are printed with a code.
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. The first two significant digits represent the first two digits of the actual value which is 47. Typically the markings on a capacitor may give the figures like 22 and 6v. A variety of schemes may be used.
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. An american company in the midst of the apollo program launched in 1961 pioneered the stacking of multiple discs to create a monolithic block. The example capacitor has a 3 digit number printed on it 103.
This code indicates what the capacitance of the capacitor is. This indicates a 22µf capacitor with a maximum voltage of 6v. The first two digits in this case the 10 give us the first part of the value. In addition to the capacitance value and possibly the working voltage or breakdown voltage the capacitor may be marked by its tolerance.
Taking a look. They are very easy to decode to find the value. The letter j signifies the tolerance of 5.