How To Read Resistor Code

When decoding the resistor color code consult a resistor color code table. 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 less.

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Also the first band is usually the closest to a lead.

How to read resistor code. Tolerance band on the right hand end of the colors refer to the tolerance chart below for exact values. Select the number of bands then their colors to determine the value and tolerance of the resistors or view all resistors digi key has to offer. Learn more about resistors and resistor color codes.

The value of the resistor is marked on the body using colors. How to read color codes from resistors. Basic resistor values range from 01 ohm to 10 megaohms.

The reading direction might not always be clear. In the sections below examples are given for different numbers of bands but first some tips are given to read the color code. Sometimes the increased space between band 3 and 4 give away the reading direction.

2 numbers to indicate the resistor value and 1 letter for the multiplier. Heres how you use the color code to figure out the nominal value of the resistor refer to the figure. This tool is used to decode information for color banded axial lead resistors.

So final value is 47k. Yellow and violet to begin which have digit values of 4 and 7 47. To determine the value of a given resistor look for the gold or silver tolerance band and rotate the resistor as in the photo on the left.

Position the resistor with this band on the right side and again read your resistor from left to right. Every color is different number and you can remember these numbers or you can just use the table on next step. Decide which band is the first band.

If the multiplier band is gold or silver then the decimal point is moved to the left one or two places divided by 10 or 100. Or there are much resistor calculators that you can use. Tips for reading resistor codes.

For the first two color bands is for most significant value. Read the color of the right most band. Usually the colored band at one end is closer to that end than is the colored band at the other end.

Its for the lazi. In this system the marking exists out of three digits. In the table below the values for each code is given which are basically the values from the e96 series.

Compare the ends of the resistor. The two first numbers represent a code that indicates a resistance value with three significant digits. The third band is red which indicates that the 47 should be multiplied by 10 2 or 100.

Determine the tolerance of the resistor. A gold band indicates that the actual resistance of the resistor will be within 5 percent of the value indicated by the coding. If the 3rd band would be red instead of brown the multiplier would be 10 2 100 instead of 10 and the resistor value would be 56 x 100 5600 ohms 56 k ohms.

How to read the code. Look at the first color band and determine its color. A silver band indicates that the actual resistance of the resistor will be within 10 percent of the number indicated by the coding.