There is an exception when the fourth band is either Gold or Silver. Fourth and fifth bands are used to indicate multiplier and tolerance respectively. The first three bands are used to indicate the first three significant values of resistance. The rest of the bands indicate the same things as four band color code. High precision resistors have an extra band which is used to indicate the third significant value of the resistance. #2.2K RESISTOR COLOR CODE CODE#
The color code table for four band resistors is as shown below.įor example, if the colors on a four band resistor are in the order Green, Black, Red and Yellow then the value of resistance is calculated as 50 * 104± 2 % = 500KΩ± 2%. This gap helps in resolving the reading direction.
There is a significant gap between third and fourth bands. The fourth band is used to indicate tolerance. The third band is used to indicate the multiplier. The first two bands from the left are used to indicate the first and second significant digits of resistance. Four band color code is the most common representation in resistors. 
This means the resistance value lies in the region of 3760Ω to 5640Ω.
The color code table corresponding to three band resistors is shown below.įor example if the colors on the resistor are in the order of Yellow, Violet and Red from left, then the resistance can be calculated as. The tolerance for three band resistors is generally 20%. The third band indicates the multiplier. The second band indicates the second significant number. The first band from the left indicates the first significant figure of the resistance. 
The three band color code is very rarely used.
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