The resistor color code markings are always read one band at a time starting from the left to the right, with the larger width tolerance band oriented to the right. The color bands on the body of the resistor tell how much resistance it has. Decoding the color bands throughhole, axial resistors usually use the colorband system to display their value. This chart shows you how you can read the resistor color bands. Resistor color code calculator to find the resistance value of 4band, 5band, and 6band resistors shown. These colour bands are known as resistor colour code. Weve created a simple chart to explain resistor color coding for you. Here we have a resistor colored greenredgoldsilver, which would be 5. Color coding is standardized by the electronic industries association eia.
Better be ready or your great big venture goes wrong, go. This is to prevent having metal particles in the coating. The 4 color bands on the left side are grouped together to represent the resistance value of a. You might want to know how to do this if you have quite a few random resistors just lying around the house. There are several bands to specify the value of resistance. The 4 color bands on the left side are grouped together to represent the resistance value of a resistor and the 5 th color band on the right side indicates the tolerance of the resistor the 1 st color band indicates the 1 st significant value or 1 st digit of the resistors value the 2 nd color band indicates the 2 nd significant value or 2 nd digit of the resistor value. Resistor color coding uses colored bands to quickly identify a resistors resistive value and its percentage of tolerance with the physical size of the resistor indicating its wattage rating.
Resistor color coding system applies to carbon film resistors, metal oxide film resistors, fusible resistors, precision metal film resistors, and wirewound resistors. How to read colour code of resistor, smd resistor code. Every color is different number and you can remember these numbers or you can just use the table on next step. Resistor color code chart handout pdf teach engineering. Resistor colour code solver is a featured resistor value calculator which offers both color code to value and value to color code conversions. Resistor color codes pdf download build electronic circuits. The value of the resistor is marked on the body using colors. All leaded resistors with a power rating up to one watt are marked with colour bands. Resistor colour code and resistor tolerances explained. The colored bands specify together the resistance value, the. This skill is needed by technicians, engineers, and some hobbyists. Findout the resistance using resistor color code calculator.
Resistor color code 4 band, 5 band and 6 band resistors. This system was employed for resistors when the surface area was not sufficient to print the resistance value for the past. A 5 band color code resistor has 4 color bands on left side and one color band on right side. How to read color codes from resistors the value of the resistor is marked on the body using colors. A separate code, the 25pair color code, is used to identify wires in some telecommunications cables. When you see only three color bands on a resistor, you know that it is actually a. The first band is a one 1, the second band is a zero 0, and the multiplier band or third band is one time text to the third power or one thousand. Different types of resistors and color coding in electronic. The 4 color bands on left side are very close to each other and the 5th color band on right side is separated from the first 4 bands with some space. Chapter1 resistors color coding linkedin slideshare. In carbon resistors value of resistance is indicated by four coloured bands marked on its surface as shown below in figure. Resistor colour codes usually follow the standard iec 60062, and there are others jis c 0802, jss 50401, etc. Resistor color code 1st nd digit 2 digit 3rd digit multiplier stripe tolerance 4th stripe black 0 0 0 x 1 brown 1 1 1 x 10 1% red 2 2 2 x 100 orange 3 3 3 x 1 000 yellow 4 4 4 x 10 000 green 5 5 5 x 100 000 blue 6 6 6 x 1 000 000 purple 7 7 7 grey 8 8 8 white 9 9 9 gold x 0. Sep 10, 2012 the coding is defined in the international standard iec 60062.
Try out our resistor color code calculator in our tools section standard resistor values and color. Resistor colour coding uses coloured bands to easily identify a resistors resistive value and its percentage tolerance. Together they specify the resistance value, the tolerance and sometimes the reliability or failure rate. This system was employed for resistors when the surface area was not sufficient to print the. For example, a resistor with four bands where the coding is yellow 4, violet 7, red. It consists of a set of individual colored rings or bands in spectral order representing each digit of the resistors value. Dec 20, 2016 if you want to understand resistor color coding then you are at right place where you are explained full resistor calculator depending upon the resistor colour bands which are always confusing for the electricians. Find the value and tolerance of a 4 band, 5 band, or 6 band resistor with our resistor color code calculator or download our color code pdf for reference. Use the last number of a 3digit code to magnify the first 2. View the resistors and based on the color bands determine its value. Post your answers or queries regarding resistor and its color coding and innovative electronics project ideas on resistor such as pencil resistors by posting your comments in the comments section below.
Select the number of bands, then their colors to determine the value and tolerance of the resistors or view all resistors digikey has to offer. A current that is passed through the resistor is always directly proportional to the voltage across the terminals of the resistors. In our previous post we saw that there are many different types of resistor available that can be used in both electrical and electronic circuits. Almost all resistors pinned with a power rating of up to 1 watt are marked with color bands. As shown in the following diagrams figure 1, there are 5band resistors and 4band resistors. Look for the 3 colors which they are near on each other. In the 1920s, citation needed the rma resistor color code was developed by the radio manufacturers association rma as a fixed resistor coloring code marking. Nov 23, 2012 this chart shows you how you can read the resistor color bands. It should be noted that there is a 5band color code for nonprecision resistors as well, with the first four bands serving the same purpose as in a 4band code, the extra band indicating resistor reliability. I am reluctant to pass on this godawful tradition to kids interested in electronics today. Resistor color code 6 band color code 5 band color code 4band color code gry8. Components and wires are coded with colors to identify their value and function.
Resistor color code system how to read the resistor code. A resistor is an electric element that limits the flow of the electric current into an electric circuit. Because carbon resistors are physically small, they are colorcoded to identify their resistance value in ohms. The reason for this is that any numbers printed on the component would very easily be removed and they would not be easy to read. Resistor color code system resistor color coding system applies to carbon film resistors, metal oxide film resistors, fusible resistors, precision metal film resistors, and wirewound resistors cylindrical with enlarged ends of the axial lead type. Because carbon resistors are physically small, they are color coded to identify their resistance value in ohms. If you want to understand resistor color coding then you are at right place where you are explained full resistor calculator depending upon the resistor colour bands which are always confusing for the electricians. This system is employed for resistors when the surface area is not sufficient to print the resistance value for the past time. In the case of a 3 or 4 band resistor, the first two band indicate the significant digits and the third indicates the multiplier. In 1930, the first radios with rma color coded resistors were built. Or there are much resistor calculators that you can use. Aug 22, 2018 to overcome this, resistor color coding is introduced.
Resistor color code is used to indicate the value of resistance. Before industry standards were established, each manufacturer used their own unique system for color coding or marking their components. Use the resistor color code chart below to understand how to use the color code. This scheme was developed for military purposes and is seldom seen in civilian circuitry. Resistor color code chart how to identify resistance. Jan 05, 2018 how to read colour code of resistor, smd resistor coderesistor color code. You might want to know how to do this if you have quite a.
Apr 28, 2020 look at the color of the second band to find the second number. It describes the coding standard for both resistors and capacitors. The number of bands present in a resistor varies from three. Do you remember what the colors on your resistor means. This exam will test your ability to decode a resistor s color code and calculate the resistance and tolerance of a resistor. Theory there are two ways to find the resistance value of a resistor. There may be three four or sometimes even five rings.
In the case of 5 band and 6 band resistors the first three bands indicate the significant digits and the fourth band indicates the multiplier. Resistor color code and types of resistors introduction to resistors. Resistor colour code for engineers electronics basics guide. Different codes are used for wire leads on devices such as transformers. Find the value and tolerance of a 4band, 5band, or 6band resistor with our resistor colour code calculator or download our colour code pdf for reference. The coding of color is defined in the international standard 1ec60062. Resistors cases usually have three to six bands that indicate their resistance, tolerance and sometimes their temperature coefficient of resistance tcr. If there is no tolerance band, then find the side that has. For high voltage resistors often the colors gold and silver are replaced with yellow and gray.
Form both 5 and 4band resistors, the last band indicates. Sep 28, 2015 resistor color code is used to indicate the value of resistance. This standard describes color coding for axially leaded resistors and numeric code for smd resistors. Steps in determining the value of the color coded resistor hold the resistor. They are given by several bands and together they specify the resistance value, the tolerance rate and sometimes the reliability or failure rates. The standards for color coding registers are defined in international standards iec 60062.
Updated resistor color code pdf chart resistor color. Generally, the resistance value, tolerance, and wattage rating are printed on the body of a resistor as numbers or letters when the resistors body is big. Colorcoding is standardized by the electronic industries association eia. Resistor color codes pdf download build electronic. Resistor color code chart resistors are devices that limit current flow and provide a voltage drop in electrical circuits. Arnido jr instructor, colegio san agstin bacolod 2. However the smaller resistors like those most commonly encountered are colour coded. Colorcoding is standardized by the electronic industries. This is all about different resistors and the colorcode identification for resistance values. What memory tool are schools teaching now to help keep the color code straight. Resistor color code chart understanding resistance color coding.
This standard describes the marking codes for resistors and capacitors. To the immediate right of the first colored band is a second colored band. Commercially resistors of different type and values are available in the market but in electronic circuits carbon resistors are more frequently used. The little poem involved racism and rape, if i remember correctly. This is all about different resistors and the color code identification for resistance values. These colour bands are known as resistor colour code all leaded resistors with a power rating up to one watt are marked with colour bands.
Carbon composition, carbon film, metal film, wire wound, metal oxide resistor. Resistor color codes color codes electronics textbook. Lets take a look at the color code chart below and dive right in with a. In our previous post we saw that there are many different types of resistor available that can be used in both electrical and electronic circuits the resistance value is a discrete value. Both of these conversions are available for 4 band, 5 band, and 6 band resistors. Conventional fixed resistors have coloured bands showing their value.
This tool is used to decode information for color banded axial lead resistors. Resistor color coding system applies to carbon film resistors, metal oxide film resistors, fusible resistors, precision metal film resistors, and wirewound resistors cylindrical with enlarged ends of the axial lead type. For instance, if the first band was brown and the second band. Jul 07, 2016 resistor color codes pdf download july 7, 2016 by oyvind nydal dahl 2 comments. Resistors can be found in almost every household appliance. On every pinned through hole resistor, there are colored bands which denote the value of resistance in the resistor. How to read colour code of resistor, smd resistor coderesistor color code. Given 10 different sets of color bands, determine the resistor values and tolerances. Then, consult the resistor color chart to identify the second number in the value of the resistor. The use of color bands on the body of a resistor is the most common system for indicating the value of a resistor. Identify the first 2 numbers, then add the number of zeroes represented by the last number to. In this software, you have 8 color codes for tolerance level, which include brown, red, green, blue, violet, silver, gold, and grey. The coding is defined in the international standard iec 60062. An electronic color code is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others.
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