Resistor color code is used to indicate the resistance value. Imagine how many blind technicians there would be otherwise. The general purpose carbon film resistors which are used in electrical and electronic circuits are marked using a four colored bands. In carbon resistors value of resistance is indicated by four coloured bands marked on its surface as shown below in figure.
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. Every color is different number and you can remember these numbers or you can just use the table on next step. Resistors are devices that limit current flow and provide a voltage drop in electrical circuits. View the resistors and based on the color bands determine its value. An introduction to resistor color code circuit crush. 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. Components and wires are coded with colors to identify their value and function.
Resistor color code chart handout pdf teachengineering. The use of color bands on the body of a resistor is the most common system for indicating the value of a resistor. Resistors 4band capacitors and inductors and 3band inductors. This chart shows you how you can read the resistor color bands. Resistor color code system how to read the resistor code. Resistors are identified by a standard color coding system.
This system was employed for resistors when the surface area was not sufficient to print the resistance value for the past. Resistor colour code solver is a featured resistor value calculator which offers both color code to value and value to color code conversions. And also, the entire body of the resistor is colored. Resistor color codes pdf download build electronic. Token resistor color coding system applies to carbon film, metal oxide film, fusible, precision metal film, and wirewound cylindrical with enlarged ends of the axial lead type. The use of color bands on the body of a resistor is. Updated resistor color code pdf chart resistor color code pdf in our previous post we saw that there are many different types. It describes the coding standard for both resistors and capacitors. Now look at the 2nd color band and match that color to the same chart. The coding of color is defined in the international standard 1ec60062.
Better buy resistors or your grid bias voltages go west better be right or your great big venture goes west. Thus resistors play an important role in running circuits. Resistor color codes and values for practical application brief. 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. Try out our resistor color code calculator in our tools section. Color code charts use the following charts to calculate component values for color band resistors. Updated resistor color code pdf chart resistor color. 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. 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. Ive got a duch one to remember the colors on resistors. 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.
Without a resistor an electric circuit cannot work properly. This is all about different resistors and the colorcode identification for resistance values. Commercially resistors of different type and values are available in the market but in electronic circuits carbon resistors are more frequently used. But in order to do this the actual resistor needs to have some form of resistive or resistance value. Look at the 1st color band and determine its color. 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. Resistor color code 4 band, 5 band and 6 band resistors. The colors brown, red, green, blue, and violet are used as tolerance codes on 5band resistors only. Resistors are available in a range of different resistance values from fractions of an ohm. Well resistors have standard colors for the purpose of identification of their resistance. This system is employed for resistors when the surface area is not sufficient to print the resistance value for the past time.
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. Our resistor color code calculator is a handy tool for reading carboncomposition resistors whether its a 4band, 5band or 6band type. Resistor color code chart resistors are devices that limit current flow and provide a voltage drop in electrical circuits. The color code consists of various color bands, which indicate the resistance values of resistors in ohms as well as the tolerance rating. Composition resistors are color coded to indicate resistance values or ratings. 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. This maybe difficult on small or oddly colored resistors. Resistors and the color codes hirophysics 6 band resistor color code calculator resistor color code guide resistors and the color codes hirophysics. Just have a look to the resistor color code chart below and see the calculations, how the resistance value is. A separate code, the 25pair color code, is used to identify wires in some telecommunications cables. The value of the resistor is marked on the body using colors. Now look at the 2nd color band and match that color to the same resistor colour code chart. The resistor color code calculator decodes and identifies a value and tolerance of 4 band wire wound resistors.
Resistors can be integrated into both hybrid and printed circuits. Here is the tutorial about 3, 4, 5 and 6 band resistors color codes, tolerance letter coding. This may be difficult on small or oddly colored resistors. Surface mounted resistors smd use another coding system that uses alphanumeric codes printed on its surface instead of color codes. This physics video tutorial explains how to use the resistor color code chart to determine the value of the resistance of a resistor in an electric circuit. Well, let us tell you its a cakewalk now with resistor color code chart. 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. Because carbon resistors are physically small, they are colorcoded to identify their resistance value in ohms. The first band you start with when reading resistor color. This is to prevent having metal particles in the coating. Resistor color coding system applies to carbon film resistors, metal oxide film resistors, fusible resistors, precision metal film resistors, and wirewound resistors. 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. To distinguish left from right there is a gap between the c and d bands. A resistor is identified by its pattern of color of bands.
They are certainly helpful for any techie smart with their hands. In the case of a 3 or 4 band resistor, the first two band indicate the significant digits and the third indicates the multiplier. The color bands are always read from left to right starting with the side that has a band closer to the edge. For the purpose of calculating the value of the resistor of a. If you would like to print this out and hang it near your workbench, you can download the pdf. For high voltage resistors often the colors gold and silver are replaced with yellow and gray. This tool is used to decode information for color banded axial lead resistors. This system was employed for resistors when the surface area was not sufficient to print the resistance value for the past time. If there is no tolerance band, then find the side that has. Different codes are used for wire leads on devices such as transformers or in building wiring. To use this tool, simply click on a particular color and number and watch how the actual bands on the resistor illustration change. This convenient index was created by radio manufactures association now part of electronic industries alliance in early 1920s. Calculating resistor values the fifth bands is used to determine the percentage. R value first band second band x 10 third band band four specifies resistor tolerance red 2% gold 5% silver 10% none 20%.
Almost all resistors pinned with a power rating of up to 1 watt are marked with color bands. Therefore, it is necessary to be familiar with this system. Resistor color codes color codes electronics textbook. As the electronics industry evolved, one of the first things that the industrys players did was standardize the color code marking on resistors. Both of these conversions are available for 4 band, 5 band, and 6 band resistors. It consists of a set of individual colored rings or bands in spectral order representing each digit of the resistors value. To calculate the resistance of a resistor, you can select the appropriate color bands in the above resistor color code calculator. 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.
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