These capacitor colour codes are less common than in previous years, but some may still be seen. Today most capacitors are marked with alphanumeric codes but older capacitors may be seen that have colour codes. These markings and codes indicate various properties for the capacitors and it is essential to understand them in order to select the required type.
CERAMIC CAPACITOR CODE CHART 22 HOW TO
You have to choose the right one for your electronic application needs.Capacitor Codes & Markings Capacitors have a large number of markings and codes that indicate their value, tolerance and other essential parameters.Ĭapacitor uses Capacitor types Electrolytic capacitor Ceramic capacitor Tantalum capacitor Film capacitors Silver mica capacitor Super capacitor SMD capacitor Specifications & parameters How to buy capacitors - hints & tips Capacitor codes & markings Conversion tableĬapacitors have a variety of marking codes on them. Each Capacitor has a colour code with its own set of technical specifications.
There are tens of Capacitors for commercial grade, high voltage, high temperature, Aero space, Defense, RF and microwave, and power optimized applications. This five - Band Polyester Capacitor can be read at 47nF from above Colour Code with 10% of Tolerance and 250V working voltage. It can range from - 20% to + 80% ie If 100F Capacitor with Tolerance of 20% can vary from 80F to 120F.
CERAMIC CAPACITOR CODE CHART 22 PLUS
Tolerance rating is expressed as plus or minus Value in Pico Farads for low value Capacitors which are less than 100pF or a percentage higher than 100pF for high value Capacitors. Tolerance represents how much more or less you can expect Capacitors actual capacitance to be from rat capacitance which is printed on the capacitor. It is safe to operate capacitor within its rat voltage. Working voltage is written on capacitors which refers to the maximum voltage that can be applied across capacitor. Working voltage is the most important of all characteristics. The last colour indicates voltage rating.
The Colour Code chart is given below: following table shows working voltage depending upon Capacitor: Type J - dip Tantalum Capacitors, Type K - Mica Capacitors, Type L - Polyester / Polystyrene Capacitors, Type M - Electrolytic 4 Band Capacitors, Type N - Electrolytic 3 Band Capacitors in code above and B indicate 1 and 2 digits and D is multiplier and T is Tolerance. There are different colors used on Capacitor, Each colour has its own digit, multiplier tolerance and temperature co - efficient. * Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions. As you can see, it is so easy that you can do this in your head.
Here is another example, Code 104 is 10 followed by four zeros, hepF. Engineers usually do not require calculators because the code is so simple. If you are new to Capacitor codes, then the best way to start is with a chart, because that way, you can see the arrangement of code. Ceramic disc Capacitor does not have polarity and connects in any direction on print circuit board. Hence, value of Capacitor above is 47000 pF 5%. Since this is an EIA coding system, value will be in pico Farads. The third digit is the multiplier, which is 1000. The first two significant digits represent the first two digits of actual value, which is 47. They are very easy to decode to find value. The Ceramic disc Capacitor Code / label will normally consist of three numbers followed by letter.