These are read as pico farads. The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier.
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How to read capacitor codes large capacitor have the value printed plainly on them such as 10uf ten micro farads but smaller disk types along with plastic film types often have just 2 or three numbers on them.
Pdf capacitor code. How to read a capacitor. The first two significant digits represent the first two digits of the actual value which is 47. The working voltage for a capacitor is very important and therefore this parameter is often marked on capacitors and particularly in situations where there is space for alphanumeric coding.
Capacitor tolerance letter codes table. Ceramic disc capacitor code label will normally consist of three numbers followed by a letter. They are very easy to decode to find the value.
Unlike resistors capacitors use a wide variety of codes to describe their characteristics. First most will have three numbers but sometimes there are just two numbers. Physically small capacitors are especially difficult to read due to the limited space available for printing.
Click here for resistor colour code and smd resistor code ceramic disc capacitors have two to three digits code printed on them. Three digit codes are often accompanied by an additional tolerance letter code as given below. Capacitor working voltage codes.
47 10000 470000 pf 470 nf 047 uf with the j meaning a 5 tolerance. Download the pdf here electrolytic capacitor. Looking at our capacitor we will see its marked 474j this should be read as follows 47 times the value that can be found in table 1 corresponding to the 3rd number in this case 10000.
View download or print capacitor code chart pdf completely freethis chart is easily accessible and can be incorporated into any of your personal uses. Method of finding the valuemeaning of codes of capacitor. Ceramic disc capacitor values code label.
For example the digits 471 4710 470pf. Heres a clear explanation of what these codes mean and how to read them. A three letter code consists of the two value digits and a multiplier much like the resistor colour codes in the resistors section.
These calculators can convert the 3 digit value codes and alphabetical tolerance codes found on some capacitors into the corresponding value and vice versa. Some capacitors will have their capacitance and voltage ratings printed directly on the component but some may have a three or four digit code. View download or print capacitor code chart pdf completely freethis chart is easily accessible and can be incorporated into any of your personal uses.
In many instances where the capacitor is small no voltage coding is provided and care must be taken when using a capacitor without any knowledge of its working voltage. Both parts of each calculator work separately you do not have to enter both value code and tolerance code. The third digit is the multiplier which is 1000.
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