Ceramic Disk Capacitor Code

Ceramic disc capacitors like the one on the left are printed with a code.

Ceramic disk capacitor code. Ceramic disc capacitor values. Sometimes figures such as 10n will be seen and this indicates a 10nf capacitor. Similarly n51 indicates a 0 51nf or 510 pf capacitor etc. The first two digits in this case the 10 give us the first part of the value.

The early style of the ceramic disc capacitor could be more cheaply produced than the common ceramic tube capacitors in the 1950s and 1970s. Ceramic capacitor codes how to read a ceramic capacitor with numeric coding. The capacitance value will be calculated as follows. The example capacitor has a 3 digit number printed on it 103.

Ceramic disc capacitor values. Read the tolerance code on ceramic capacitors. When the first two numbers are multiplied with the multiplier the. Then by just using numbers and letters as codes.

An american company in the midst of the apollo program launched in 1961 pioneered the stacking of multiple discs to create a monolithic block. Then the 4 1 st digit the 7 2 nd digit the 3 is the multiplier in pico farads pf and the letter j is the tolerance and this translates to. They are very easy to decode to find the value. The letter j signifies the tolerance of 5.

Click here for resistor colour code and smd resistor code ceramic disc capacitors have two to three digits code printed on them. 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. It is very easy to decode to find the capacitor value. I have always been unaware of the markings on a disc ceramic capacitor such as j m and other symbols.

47pf 1 000 3 zero s 47 000 pf 47nf or 0 047uf the j indicates a tolerance of 5. Ceramic disc capacitor code label will normally consist of three numbers followed by a letter. So this is how a capacitor value code calculator calculates the ceramic capacitor value from the capacitor code or vice versa. 15 100 1500 pf.

The capacitor on the left is of a ceramic disc type capacitor that has the code 473j printed onto its body. The third digit is the multiplier which is 1000. Surface mount capacitors are often very small and do not have the space for markings. The first two significant digits signify the first two digits of the actual capacitance value which is 47 the above capacitor.

A variety of schemes may be used. Multiplier table ceramic number multiply by additional of zeros 0 none 0 1 10 1. Often the value may be given in picofarads. Similarly if the capacitor code is 152 the 3 rd digit is 2 so multiplier factor is 100.

Method of finding the value meaning of codes of capacitor. Smd ceramic capacitor codes. The first two significant digits represent the first two digits of the actual value which is 47. Taking a look.