Aside from interpreting the color code, the utility can also decode the threedigit or fourdigit code on sm resistors. Scribd is the worlds largest social reading and publishing site. Resistor color coding resistor color code 0 black 1 brown 2 red 3 orange 4 yellow 5 green 6 blue. It helps me in calculating the colour code of any resistor. To distinguish left from right there is a gap between the c,and d bands. Resistor color codes pdf download build electronic circuits. These colour bands are known as resistor colour code.
Resistor colour code and resistor tolerances explained. When you see only three color bands on a resistor, you know that it is actually a 4band code with a blank 20% tolerance band. Resistor color code chart handout edit, fill, sign online. 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. Download resistor color code calculator 4, 5 and 6 band. A helpful little utility that allows you to find the value of a standard resistor without memorizing the color codes. Most of these resistors will have four bands of color circling the resistor. Resistor color code is used to indicate the value of resistance. Resistor color codes pdf download build electronic. The attractive rainbow colors adorning most fixed resistors serve a purpose beyond catching your eye. Also includes and ohms law calculator and a resistor color code quiz currently in the process of being implemented. Resistor color code calculator and chart 4band, 5band or 6. If there is no tolerance band, then find the side that has.
Updated resistor color code pdf chart resistor color. Enter the color of your resistor and resistor color code will manage to provide you the matching value. Well resistors have standard colors for the purpose of identification of their resistance. Colorcoding is standardized by the electronic industries association eia.
Here we have a resistor colored greenredgoldsilver, which would be 5. Most of the time, such values have to be memorized and if you do not get used to these items. If it is gold, the tolerance value of the resistor is 5% and if it is silver the tolerance is 10% of the value. Coding is standardized by the electronic industries alliance eia. Download resistor color code software for pc for free. Resistor color code may suit anyone involved in electronics whether he is a student or a professional. Resistor values are often indicated with color codes. 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. The quiz and worksheet help you evaluate your knowledge of color codes on resistors. Our resistor color code calculator is a handy tool for reading carboncomposition resistors whether its a 4band, 5band or 6band type. This standard describes color coding for axially leaded resistors and numeric code for smd resistors. Resistor color codes color codes electronics textbook.
Did you think reading and decoding the information on resistors is tough. Most of the resistors have colour bands grouped closer at one end. Download resistor color code software for pc for free windows. Resistor color code chart handout edit, fill, sign. Before industry standards were established, each manufacturer used their own unique system for color coding or marking their components. Different types of resistors and color coding in electronic. In this instructable, you will learn how to decode the colored bands on resistors. Color coding is a method used to indicate the resistive value, tolerance, and temperature coefficient of resistors with low wattage rating because of their small size. 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. Components and wires are coded with colors to identify their value and function. Take the quiz beforehand to check what you already know, and.
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. Resistor pdf file free downloadresistor colour code. Resistors can be constructed out of a variety of materials. Following are the ways to understand which end of the resistor must be used for reading the colour codes.
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. They are given by several bands and together they specify the resistance value, the tolerance rate and sometimes the reliability or failure rates. Apr 23, 20 download resistor color code calculator for free. Resistors come in a range of tolerances but the two most common are the e12 and the e24 series. All leaded resistors with a power rating up to one watt are marked with colour bands. Resistor color coding carbon resistors are small, so their r value in ohms is marked using a colorcoding system. Carbon resistors and their colour coding definition. Conventional fixed resistors have coloured bands showing their value. Resistor color code 6 band color code 5 band color code 4band color code gry8. Practically all leaded resistors with a power rating up to one watt are marked with color bands. However the smaller resistors like those most commonly encountered are colour coded. Resistor colour code for engineers electronics basics guide. 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.
Resistors are the most fundamental and commonly used component in all the electronic circuits. Because carbon resistors are physically small, they are color coded to identify their resistance value in ohms. Updated explain the different types of resistors pdf. Resistor color coding carbon resistors are small, so their r value in ohms is marked using a color coding system. You might want to know how to do this if you have quite a few random resistors just lying around the house. Check out all about circuits resistor color code calculator, a handy tool for reading resistor color code values. Colorcoding identifies the nominal value and tolerance of most resistors.
Sep 28, 2015 resistor color code is used to indicate the value of resistance. The coding is defined in the international standard iec 60062. Colorcoding is a method used to indicate the resistive value, tolerance, and temperature coefficient of resistors with low wattage rating because of their small size. Resistor color code system how to read the resistor code. Printable and fillable resistor color code chart handout. Color coding is standardized by the electronic industries association eia. For example, a resistor with four bands where the coding is yellow 4, violet 7, red.
The five and six band resistor colour code is more commonly associated with the high precision 1% and 2% film types while the common garden variety 5% and 10% general purpose types tend to use the four band resistor colour code. This system was employed for resistors when the surface area was not sufficient to print the. Download the latest version of resistor color code free in. The colors brown, red, green, blue, and violet are used as tolerance codes on 5band resistors only. There may be three four or sometimes even five rings. In both of these calculations, the color code scheme is applicable for 4, 5, and 6 band resistors. Color bands are used because they can be easily and cheaply printed on a small electronic component. There are several bands to specify the value of resistance.
This is to prevent having metal particles in the coating. Jul 07, 2016 resistor color codes pdf download july 7, 2016 by oyvind nydal dahl 2 comments. A resistor is an electric element that limits the flow of the electric current into an electric circuit. In these resistors, a thin film of conductive though still resistive material is wrapped in a helix around and covered by an insulating material. In 1930, the first radios with rma color coded resistors were built. The color code starts near the edge of one side of the resistor and consists of several. Over many decades, as the organization name changed rma, rtma, retma, eia so was the name of the code. Different types of resistors and its color code calculation in electronics resistors are the most commonly used components in electronic circuits and devices. When looking at the chart, note the illustration of three round resistors with numerous color code bands. The use of color bands on the body of a resistor is the most common system for indicating the value of a resistor. Use the resistor color code chart below to understand how to use the color code system. Most common, modern resistors are made out of either ac arbon, metal, or metaloxide film. This tool is used to decode information for color banded axial lead resistors. 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.
For high voltage resistors often the colors gold and silver are replaced with yellow and gray. They have different numbers of color bands and hence provide different information. Electronics club resistors values, colour code, ohm. 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. In this paper, a novel approach has been applied to detect the resistors with color code recognition.
Decoding the color bands throughhole, axial resistors usually use the colorband system to display their value. 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 standards for color coding registers are defined in international standards iec 60062. The main purpose of a resistor is to maintain specified values of voltage and current in an electronic circuit. Pdf realtime resistor color code recognition using. The main function of a resistor within an electrical or electronic circuit is to oppose or resist the flow of current, hence named as resistor. The tolerance of a resistor is shown by the fourth band of the colour code. Try out our resistor color code calculator in our tools section. Pth resistors use a colorcoding system which page 5 of 16. To use this tool, simply click on a particular color and number and watch how the actual bands on the resistor illustration change. Hold the resistor with these grouped bands to your left. Also includes and ohms law calculator and a resistor color code quiz currently in. Do you remember what the colors on your resistor means. You can easily calculate the resistance by using the chart and applying the formula given along with.
Resistor color code calculator and chart 4band, 5band. Having a unique purpose, the software is lightweight and does not consume lots of cpu resources. 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. Edit, fill, sign, download resistor color code chart handout online on. Resistor color code and types of resistors introduction to resistors. 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. Pdf realtime resistor color code recognition using image. In our previous post we saw that there are many different types of resistor available that can be used in both electrical and electr resistor color code pdf chart free download for the electronics students. Resistor color code chart resistors are devices that limit current flow and provide a voltage drop in electrical circuits.