These calculators can convert the 3-digit value codes and alphabetical tolerance codes found on some capacitors into the corresponding value and vice-versa. Both parts of each calculator work separately – you do not have to enter both value code and tolerance code. Details of capacitor markings can be found in the. This calculator is used to find the value of a capacitor from the digit code printed on its side.

Enter the code in the box below and then hit the button to calculate the value of the capacitor. If the rightmost digit is zero, then the code may be a value in pF instead of the 3-digit code. Quick comprehensive reference about the variety of capacitor markings and codes used to indicate the value and other parameters of a capacitor performance.

F with the J meaning a tolerance. A second letter will be a temperature coefficient if its . This table is designed to provide the value of alphanumeric coded ceramic, mylar and mica capacitors in general. However, if there is only one letter after the code , this is usually the tolerance code , not the unit.

P and N are uncommon tolerance codes , but they do exist. Capacitor codes , simple and easy way. Need to determine the value of an Orange Drop cap? When I first started doing electronics, capacitors (caps) were a real puzzle, and I often just substituted them in a breadboarded circuit until I found one that worked. Now I have a DMM that reads capacitance, which makes identifying capacitors much simpler . The only difficult to read capacitors are the very small ones because there is not much space on them to put a value.

These small capacitors have numbers on them and sometimes only two. If there are only two numbers you will have to read the value as pf. For instance the number printed on a capacitor means its pf. Ceramic caps may be tiny, but they have lots of non ideal qualities so calculating total tolerance can get ugly. There is a voltage dependency that is in addition to both the initial tolerance and the temperature coefficient.

For some types, operating at full rated voltage reduces the capacitance to less than half . Over time, a series of standard capacitor values have evolve just as with resistors and inductors. In the latter case the third digit signifies the number of zeros following the first two digits. Large capacitor have the value printed plainly on them, such as 10.

F (Ten Micro Farads) but smaller disk types along with plastic film types often have just or three numbers on them? First, most will have three numbers, but sometimes there are just two numbers. An example: printed on. The lot number (production batch number) ensures . All pages on the capacitor guide about capacitor codes. This page will convert capacitor codes to values or capacitor values to codes.

Back to capacitors page. By decoding the colorful stripes sported by many resistors and the alphanumeric markings that appear on certain types of capacitors , you can determine the nominal value and tolerance of the specific . Electronics can sometimes be difficult to decipher. They are very easy to decode to find the value. The first two significant digits represent the first two digits of the actual value, which is 47.

The letter J signifies the tolerance of ±. The actual capacitance depends on the measuring frequency and the ambient temperature. Standardized conditions for capacitors are a . There are special codes and marking on capacitor, which tell about the value of capacitor. Click image for zooming. Most capacitor numerical markings are digit and express the value in pF (pico Farad = 10^-Farad) with the last digit being a power of multiplier.

Once you have a clear picture of capacitor codes and capacitor color codes, it is easier to identify.