Labeling On Ceramic Capacitors

In addition to the capacitance value and possibly the working voltage or breakdown voltage the capacitor may be marked by its tolerance.

Labeling on ceramic capacitors.

The two most common types are multi layer ceramic capacitors and ceramic disc capacitors. Class 1 and class 2. Two of the most common are shown here. To get this value you multiply the leading digits 68 in this case by 10 raised to the power of the last digit 3 and the result is the capacitance in picofarads in this case we get 68x10 3 pf.

There are three exceptions for the last digit. The above image shows a mylar film capacitor. These figures indicate that the capacitor is of 22µf and 6v is its maximum voltage. The smaller values in the kit are 50v rated ceramic capacitors.

The letter j signifies the tolerance of 5. For the example of the capacitor code shown in the diagram the two figures 47 indicate the significant figures and the 5 indicates the multiplier of 5 i e. 7 is not. The first two significant digits represent the first two digits of the actual value which is 47.

Ceramic disc capacitor code label will normally consist of three numbers followed by a letter. 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 is used with small ceramic capacitors and appears as a single letter. Characteristics precision and tolerances.

There are several tolerance marking systems used. Capacitor identification capacitor marking review. The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. The top 683 marking indicates the capacitance value which is 68 000 picofarads pf.

The third digit is the multiplier which is 1000. A ceramic capacitor is a fixed value capacitor where the ceramic material acts as the dielectric it is constructed of two or more alternating layers of ceramic and a metal layer acting as the electrodes the composition of the ceramic material defines the electrical behavior and therefore applications. The markings on a ceramic capacitor are more concise in nature since it is smaller in size as compared to electrolytic capacitors. Let s face it a farad is a lot of capacitance.

This letter represents the tolerance of the capacitor meaning how close the actual value of the capacitor can be expected to be to the indicated value of the capacitor. From left to right. Capacitor values are usually tiny often in the millionths or billionths of a farad. There are two classes of ceramic capacitors available today.

These are small nonpolarized caps with yellow blob for their body. When the first two numbers are multiplied with the multiplier the resulting value is the value of the capacitor in picofarads. Ceramic disc capacitors have two to three digits code printed on them. Ceramic capacitor definition a ceramic capacitor is a capacitor which uses a ceramic material as the dielectric.

On the occasions that there is space for a marking or code the simple three figure format like that shown below is often used especially for capacitors such as ceramic formats.