866 Ohm Resistor Color Code
Resistor color code is a color code to indicate the resistance of that resistor. Resistor color code can be formed with 3, 4, or 5 color bands. Each band has their own number to form a resistance number. The body color doesn't have any meaning.
The figure below shows the color coding of the 866 Ohm resistor with a tolerance of ±1%. The color code of resistor with 5 bands will be with colors of the bands are Gray, Blue, Blue, Black and Brown.
How To Read a Resistor Color Code for 5-band resistor
The color of the first band indicates the value of the first significant digit. The first band is Gray, which corresponds to the value 8.
The color of the second band indicates the value of the second significant digit. This band is Blue, which corresponds to the value 6. This is added to the right of the first digit (from band one). Therefore the digits from band one and band two are: 86.
The color of the third band indicates the value of the third significant digit. This band is Blue, which corresponds to the value 6. This is added to the right of the second digit (from band two). Therefore the digits from band one, band two and band three are: 866.
The fourth color band represents a decimal multiplier by which the first three digits must be multiplied to obtain the resistance value of the resistor. Takes the digits and multiplies them by a value given by this band. The actual multiplier is 10n, where n is the value of the band color. In this case, the fourth band is Black which corresponds to the number 0. Therefore the multiplier is 100 = 1.
So the total value of the resistance given by the colors is 866 x 100 Ω = 866 Ω.
The fifth band indicates the tolerance values. A Brown band is used in this example, giving us a tolerance of 1%.
As a result, the resistance value of the resistor with the color bands of Gray Blue Blue Black Brown is 866 Ohm with ±1% tolerance.