Online electrical calculator to determine the resistance of three band resistors. This convenient index was created by radio manufactures association now. Starting from the other end, identify the first band write down the number associated with that color. 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 color code system how to read the resistor code. Printable and fillable resistor color code chart handout. Download the latest version of resistor color code free in. For axial resistors, read the color bands from left to right which will tell you the ohmic value, multipliers, and tolerance.
Resistor color codes color codes electronics textbook. This is to prevent having metal particles in the coating. Just have a look to the resistor color code chart below and see the calculations, how the resistance value is. Resistor colour codes four band resistor colour code the colour codes used on resistors in carbon, carbon film and metal film types are widely used and a must learn for electronics engineers. Colors are assigned to all the numbers between 0 and 9, and the color bands basically. 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 resistor needs to be large enough to dissipate the heat into the surrounding area without changing its own value beyong the tolarance allowed. Given 10 different sets of color bands, determine the resistor values and tolerances. Resistors of different type the value of a resistor is usually indicated by 4 color band over the resistor shown in fig. So, colour bands are printed on them to represent the electrical resistance.
The resistance value is displayed on the field below together with the. Updated resistor color code pdf chart resistor color. The first band is a one 1, the second band is a zero 0, and the multiplier band or third band is. Carbon composition, carbon film, metal film, wire wound, metal oxide resistor. 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. Resistor color code chart handout pdf teach engineering. The use of color bands on the body of a resistor is. In the four band resistor colour code illustrated in. We have presented 3 charts below which are exactly resistor color code charts for 4 band, 5 band and 6 band resistors respectively. 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. Do you remember what the colors on your resistor means.
Components and wires are coded with colors to identify their value and function. The main purpose of a resistor is to maintain specified values of voltage and current in an electronic circuit. Resistors can be integrated into both hybrid and printed circuits. Resistor color code chart resistors are devices that limit current flow and provide a voltage drop in electrical circuits. Weve created a simple chart to explain resistor color coding for you. I never remember them, so i always have a handy table of the resistor color codes nearby. The first two bands represent the most significant digits of the resistance value. In the case of a 3 or 4 band resistor, the first two band indicate the significant digits and the third indicates the multiplier. Resistor color code chart the chart below shows how to determine the resistance and tolerance for resistors.
The coding is defined in the international standard iec 60062. Resistor color code chart handout edit, fill, sign. Resistor color code may suit anyone involved in electronics whether he is a student or a professional. Now read the next color, here it is red so write down a 2 next to the two. For the purpose of calculating the value of the resistor of a particular resistor you require color codes. Thus resistors play an important role in running circuits. Without a resistor an electric circuit cannot work properly. Resistor color code is used to indicate the value of resistance. How to read a resistor color code if we are to work with resistors we must learn how to determine their values from the color bands that are printed on them.
Better buy resistors or your grid bias voltages go west better be right or your great big venture goes west. Resistors and the color codes although the color code is not only for resistors, the ability to read the resistor color code is more required among engineers and scientists. The 4band code is used for marking low precision resistors with 5%, 10% and 20% tolerances. In the case of 5 band and 6 band resistors the first three bands indicate the significant digits and the fourth band. The use of color bands on the body of a resistor is the most common system for. In a previous article about basics information about resistors, we have seen, there are four color bands on each resistor. Well, let us tell you its a cakewalk now with resistor color code chart. Different types of resistors and its color code calculation in electronics resistors are the most commonly used components in electronic circuits and devices. Did you think reading and decoding the information on resistors is tough. However the smaller resistors like those most commonly encountered are colour coded. Before using any resistor in the electrical circuit, you need to find out the resistance value of the resistor. Fiveband color code precision resistors often use a fiveband code to obtain more accurate r values. For high voltage resistors often the colors gold and silver are replaced with yellow and gray.
This physics video tutorial explains how to use the resistor color code chart to determine the value of the. This chart shows you how you can read the resistor color bands. Or there are much resistor calculators that you can use. Every color is different number and you can remember these numbers or you can just use the table on next step. This system was employed for resistors when the surface area was not sufficient to print the. Different codes are used for wire leads on devices such as transformers or in building wiring. Look at the 1st color band and determine its color. Axial resistors are cylindrical with a group of color bands, while surface mounted resistors are rectangular with alphanumeric codes. Resistor color codes pdf download build electronic. How to read colour code of resistor, smd resistor code resistor color code. To calculate the resistance of a resistor, you can select the appropriate color bands in the above resistor color code calculator. Brown corresponds to the value 1 in the color chart. Well resistors have standard colors for the purpose of identification of their resistance. The tables on this page illustrate three common forms for four, five and six band resistors.
Our resistor color code calculator is a handy tool for reading carboncomposition resistors whether its a 4band, 5band or 6band type. Resistor color code calculator and chart 4band, 5band. The colors brown, red, green, blue, and violet are used as tolerance codes on 5band resistors only. Edit, fill, sign, download resistor color code chart handout online on. To use this tool, simply click on a particular color and number and watch how the actual bands on the resistor illustration change. Identifying the value will become easy with a little practice, as there are only a few simple rules to remember. Enter the color of your resistor and resistor color code will manage to provide you the matching value. Most of the time, such values have to be memorized and if you do not. The first three stripes indicate the first 3 digits in the r value. This tool is used to decode information for color banded axial lead resistors. The table can also be used to specify the color of the bands when the values are known. This may be difficult on small or oddly colored resistors. A separate code, the 25pair color code, is used to identify wires in some telecommunications cables.
Resistor color code chart how to identify resistance. Because carbon resistors are physically small, they are color coded to identify their resistance value in ohms. 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. 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. There are several bands to specify the value of resistance. Let us consider the color code for the resistor with the bands brownblackredgold. A 6 band color code resistor consists of 6 color bands. Resistors are available in many different values, shapes, and physical sizes. How to read color codes from resistors the value of the resistor is marked on the body using colors. Resistor color coding system applies to carbon film resistors, metal oxide film resistors, fusible resistors, precision metal. The 5th color band on the right side represent the tolerance of the resistor and the 6th color band represents the tcr temperature coefficient of resistance. Resistor color code 4 band, 5 band and 6 band resistors.
Read resistor color laboratory 20112012 the first litter word to represent color resistor code in table 1 table 2 resistor tolerance view the resistors and based on the color bands determine its value. It describes the coding standard for both resistors and capacitors. This standard describes color coding for axially leaded resistors and numeric code for smd resistors. The 4 color bands on the left side are grouped together to represent the resistors resistance value. Surface mounted resistors smd use another coding system that uses alphanumeric codes printed on its surface instead of color codes. Because carbon resistors are physically small, they are colorcoded to identify their resistance value in ohms. Three 3 band resistor resistance color code calculator.
Izmir university of economics eee 205 fundamentals of electrical circuits lab experiment 1 resistors resistors of differerent tal film resistor. Try out our resistor color code calculator in our tools section. An automatic resistor calculator can be used to quickly find the resistor values. There may be three four or sometimes even five rings. 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.
These colour bands are known as resistor colour code. Table 1 lists the colors found on resistors and shows what each color band represents 12 110,000 n 110 brown t yellow 0000 fig. The standards for color coding registers are defined in international standards iec 60062. Since resistors restrict the flow of electricity, friction causes heat to build up heat inside the component. A resistor is identified by its pattern of color of bands.
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