Resistor Color Code

                                                       Resistor Color Code

The electronic color code is used to find out the ratings and values of different electronic components  usually in case of resistors but also for capacitor, inductors and others.

How to read the code??

As shown in the given table different colors have their specific code.Now we will discuss and demonstrate with the help of diagrams that how to read these codes.Most of the resistors have four color bands while some have five or six bands.

Band #1 is the first significant figure of the component value.

Band #2 is the second significant figure of the component value. (In case of five bands the third band is also the 3rd significant figure of the component value.)

Band #3 is the decimal multiplier.

Band #4 if present then it shows the tolerance value.In case band #4 is not present than the tolerance value will be taken as 20%.

Now for a better concept let us take an example of a resistor which has (yellow violet red and gold) color code combination. Yellow color relates to the digit 4 as shown in the table, so the first digit in the value of resistance is 4.Now the violet color is related to the digit 7 so the second digit is 7.And red color is related to the digit 2 in table and also the 3rd digit represent the decimal multiplier.So this value will become 4700.Now the fourth color which is gold represents +-5% tolerance.So the value of the resistance lies between 4465 and 4935.

For remembering that which code is related to which digit I recommend a sentence, the first letter of each word in sentence represent a color.The sentence is "Big Boys Race Our Young Girls But Violet Generally Wins".

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