6 band resistor has 4 color bands on left side and 2 color bands on right side.
Here the first 3 color bands represent significant digits, fourth one represent multiplier and the 5th one on right side represents tolerance. 5 band resistor - has 4 color bands on left side and one color band on right side. First two bands represent significant digits, the 3rd band represents multiplier and the fourth band on right side represents tolerance. So here are the key points 4 band resistor has 3 color bands on left side and one color band on right side. For a 6-band resistor, an additional temperature coefficient band is provided.Ģ The gap between the multiplier and the tolerance specifies the left and right side of the resistor. How to Identify Resistor Color Code The figure below shows the layout of the bands, the multiplier and the tolerance value of a resistor. However they too can depend on multimeter to identify resistance values. The next drawback is for a specific group of people color blind people can not identify the device using color codes. But this is not a major concern as the exact value can be easily identified using a multimeter (in case of confusion). The first one appeals to general users where it becomes difficult to distinguish between colors (for example Red and Brown ) when the component is over heated.
This technique of color coding has 2 disadvantages. Color coding technique makes it easy to print values (based on color codes) on small components, such as resistors and facilitates cost effective manufacturing. Hence a standard was formed in 1920 by then Radio Manufacturers Association (now part of EIA Electronic Industries Alliance) to identify values and ratings of electronic components by printing color codes on them.
Electronic components like resistors are very small in size and its difficult to print its value directly on to the component surface. In the case of resistors, color coding is used to identify a specific resistance value, for example a 100 ohms resistor or a 1 kilo ohms resistor with 5% tolerance. 1 RESISTANCE COLOR CODING Resistor Color Code Chart Understanding Color coding is used in electronics to identify between different components.
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