Calculating Resistor Color Codes
three Band Resistor Color Code
For a three-band resistor Color codes, the primary bands constantly denote the primary digits of the resistance fee even as the 0.33 band represents the multiplier.

In the instance we have, the bands are brown, black and brown. The first band is the brown band closest to the edge. We appearance up our resistor Color code chart, and discover that brown has the first great fee of one and black has the second one great fee of 0. The 0.33 band is brown, this means that that the multiplier is 1. Using the formula, the resistance is for this reason calculated to be:

As the three-band resistor has no fourth tolerance band, the default tolerance is taken to be at 20%.

four Band Resistor Color Code
The four-band resistor Color code is the maximum typically used resistor. Similar to the three band resistor, the primary bands constantly supply the primary 2 digits of the resistance fee. The 0.33 band represents the multiplier even as the fourth band represents tolerance.

For a four band resistor Color code, we will start via way of means of first locating the tolerance band as it also includes gold or silver. The tolerance band is likewise without problems diagnosed because of the expanded hole among the tolerance band and the multiplier band. In this example, it’s far gold and for this reason offers a tolerance of ±five% whilst we appearance up the resistor Color code chart. Starting from the alternative end, the primary band is for this reason diagnosed to be brown which has a 1st great digit of one. The 2nd band is crimson and has a 2nd great digit of 2. The third band is inexperienced this means that that the multiplier is 105. Using the formula. The resistance received is 12 × 105 = 1,two hundred kΩ. Lastly, the tolerance band which we diagnosed to be gold offers a tolerance fee of ±five%.

Sometimes for a four band resistor Color code, the tolerance band may be left blank, ensuing in a three-band resistor. In this case, the resistance fee could continue to be the same, besides that the tolerance could be ±20% as though it have been a three-band resistor.

five Band Resistor Color Code
five band resistors are resistors with better precision, and that they have a further band for a third great digit. As such, the primary 3 bands denote the great digits of the resistance and the whole thing else shifts to the proper, making the fourth band the multiplier and the 5th band the tolerance.

In this example, the tolerance band is brown and is diagnosed via way of means of the expanded area among itself and the multiplier band. From the resistance Color code chart, we attain a tolerance fee of ±1% for brown. Beginning from the alternative end, the primary band and 2nd band is yellow and violet, which offers the first and second great digit of four and seven respectively. The more 0.33 band is blue and so the third great digit is five. The fourth band is black and offers the multiplier fee of a hundred. Using the formula, we get the resistance fee of 475 × a hundred = 475 Ω.

6 Band Resistor Color Code
A 6 band resistor is basically a five band resistor with a further ring that denotes the temperature coefficient or sometimes, the failure rate. The maximum not unusualplace Color for the 6th band is brown (a hundred ppm/K), this means that that for each 10℃ alternate in temperature, the resistance fee adjustments via way of means of 0.1%.

For this example, the resistor Color code bands may be grouped into 2 companies consistent with the distance among the multiplier band and the tolerance band. Place the bigger organization at the left and the smaller organization at the proper and study the resistor from left to proper. Again, we test the resistor Color code chart for crimson, violet and yellow, and the primary, 2nd and 0.33 bands supply the great digits of 2,7 and four respectively. The fourth band is black, giving a multiplier fee of a hundred. Hence, we are able to get a resistance fee of 274 × a hundred = 274Ω. The 5th tolerance band offers a tolerance fee of ±2%. The 6th band is black and offers a temperature coefficient fee of 250 ppm/K.