The power rating of common resistors is indicated by its size. You must select the proper power rating for a resistor whenever required. If the third band is gold or silver, the resistor has a value of less than 10 ohms. The more common and versatile type is with three pins called potentiometer or simply a “pot”. If the variable resistor has two pins, it is called a rheostat. Resistors also come in variable forms, which means its value can be varied by some means.
#Ohm resistor color code code#
The values associated with the various band colors are shown:įor example, a resistor code having colors yellow, violet, orange, and gold corresponds to a value of 47 × 1000 ± 5% Ohms. The next band is the second digit, the third band is a third digit (in the case of 5 band resistor), the next band is the multiplier, and the last band is for determining tolerance value.The color band nearest to one of the end is considered as the 1st digit of the value. As pictured in the above 100-ohm resistor, the bands are grouped toward one end of the resistor.The lower power resistors typically seen in circuits are marked with color-coded bands painted that give the resistance and the tolerance (i.e., the range of resistance value) as shown in the above figures. Resistors are widely used and available in a variety of values and power ratings. Let’s Brush-up resistor color code table and method to find value: Now, 4th digit is multiplier value (10^0 = 1) which is zero, therefore, 4th band will be of black color.Įverything will be the same from the value to the power rating for 5-band resistor and 4 band resistance except the bands painted on them. The next 2nd digit is ‘ 0 ‘, ∴ look for color in chart having value 0, then it is 2nd band color (say black).ģrd digit is ‘ 0 ‘, ∴ look for color in chart having value 0, then it is 3rd band color (say black). The 1st digit is ‘ 1 ‘, ∴ look for color in chart having value 1, then it’s your 1st color(say brown). The 100R 5-band resistor color code is b rown, black, black, black, gold and it is found as: Image showing 100 ohm resistor color code of 5-band resistor: If the 4th band is absent it should be considered as 20% tolerance. For Silver, it is 10%, and 2% tolerance is indicated by Brown. In this case, it is Gold which indicates a 5% tolerance value. The last band in 4 and 5-bands resistors is the indicator of tolerance value of the resistor.Next 3rd digit ‘0’ (but value 10^1 = 10) is multiplier ‘ 1 ‘, ∴ look for color in chart having value 1, then it’s your 3rd color (say brown). Therefore, the value of this resistor is 56 10 2. The third band is the multiplier, with red representing a multiplier value of 2 (10 2 ). By using the color code chart, one finds that green stands for 5 and blue for 6. The next 2nd digit is ‘ 0 ‘, ∴ look for color in chart having value 0, then it’s your 2nd color (say black). In the example shown here, the 4 bands are green, blue, red and gold. So for 100-ohm resistor, 1st digit is ‘ 1 ‘, ∴ look for color in chart having value 1, then it’s your 1st color(say brown). Description: From the chart below we got the color code of resistor with respect to the decimal value of the respective band taken from left to right.
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