How To Read Resistor Color Bands

- September 26, 2018

The table can also be used to specify the color of the bands when the values are known. A color is assigned to each tolerance.

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With that knowledge realize that on a four band resistor the third color will always be blue 106 or less and on a five band resistor the fourth color will always be green 105 or.

How to read resistor color bands. Resistor color code chart. The chart below shows how to determine the resistance and tolerance for resistors. The use of the code can be understood by referring to the resistor shown in figure 1.

4 band resistor color code calculator and chart digikey electronics. The standard resistor color code table. To read an axial lead resistor hold the resistor so the gold or silver band is facing to the right.

It is simply a measurement of the imperfections. How to read color codes from resistors. Gold is 5 silver is 10.

Give each color a number according to its resistive value. This the the band farthest on the right hand end of the bands. Position the resistor with this band on the right side and again read your resistor from left to right.

Therefore manufacturers place a tolerance color band on the resistor to tell you just how accurate this resistor is made. The tolerance band the deviation from the specified value is next usually spaced away from the others or its a little bit wider. Every color is different number and you can remember these numbers or you can just use the table on next step.

Make sure to read the value of the right most color band to determine the tolerance of the resistor. Basic resistor values range from 01 ohm to 10 megaohms. Its for the lazi.

Then jot down the sequence of the colored bands reading from left to right. An automatic resistor calculator can be used to quickly find the resistor values. More online conversion calculators at digi key.

The first two bands of the resistor represent the first and second significant numbers and are brown and black which from table 1 represent 1 and 0 respectively. The value of the resistor is marked on the body using colors. Color coded carbon composition resistor.

The resistor color code calculator decodes and identifies a value and tolerance of 4 band wire wound resistors. Or there are much resistor calculators that you can use. 20 resistors have only 3 color bands the tolerance band is missing.

Tips for reading resistor codes.