![]() So according to the formula the resistance will be: 16 * 100 = 1600 Ohms or 1.6K Ohms with 5% tolerance. Let’s take an example of a 4-band resistor with the colors given in the above image (brown, blue, red and gold). ‘ d’ represents the 4 th significant digit, which is the fourth band color of resistor and this is the tolerance value. ‘ c’ represents the 3 rd significant digit, which is the third band color of resistor and this is the multiplier value. ![]() ![]() ‘ b’ represents the 2 nd significant digit, which is the second band color of resistor. The second stripe is violet, which means the next digit is a 7. ‘ a’ represents the 1 st significant digit, which is the first band color of resistor. Resistor Color Codes The first stripe is yellow, which means the leftmost digit is a 4. Just have a look to the resistor color code chart below and see the calculations, how the resistance value is calculated according to this chart.Ĭalculating resistance for a 4-band resistor ![]() The colors used in tolerance band of four-band resistors are as follows: Red 2. To calculate the resistance of a resistor, you can select the appropriate color bands in the above resistor color code calculator. The fourth band on a resistor designates its tolerance. A resistor is identified by its pattern of color of bands. Resistor Color Code Band 1 Band 2 Band 3.22 ohm R22 Red Red Silver.27 ohm R27 Red Purple Silver.33 ohm R33 Orange Orange Silver.39 ohm R39 Orange White Silver. ![]()
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