For example for black color , the code is zero (0) and for green color , the code is Five (5) and so on. The old mnemonic was rather, well, disturbing, and a conscientious person would never recite it. The tolerance band is usually gold or silver in colour and is placed a little further away from the other bands. Method of finding the value of the through-hole resistor • Digit digit multiplier tolerance (for 4 band resistor ) • Digit digit digit multiplier tolerance (for 5 band resistor) Yellow Violet Red = 4 7 2 = 4 7 x 102 = 4700Ω or 4.7or 4k7. 4-digit SMD resistor system “ EIA96 SMD resistor system “ also check 100k ohm resistor color code Online electrical calculator to determine the resistance of three band resistors. Resistors are usually very tiny, and it is challenging to print resistance values on them. Usually 4 or 5. Basically, Resistor color code is such an electronic code system. Below Figure shows the color code chart, color and their respective numerical code. Color Coding in Resistors. Resistor is defined as The main purpose of resistor is to reduce the current flow and to lower the voltage in any particular portion of the circuit. Resistor Color Code Chart Pdf “Color coding” is used in electronics to identify between different components. For example, the value of resistance for shown 5 band resistor color code (Brown, Black, Orange, Red, Yellow, Brown) according to the table would be: 1. One band resistor calls zero ohm resistor. Add to Wishlist. For example, to calculate 1.2MΩ, the resistor shows Brown Red Green colors (read from left side to right). La calcolatrice per codici colore dei resistori semplifica l'identificazione e la selezione dei valori di resistenza e tolleranza dei resistori a foro passante a 4, 5 e 6 bande. The color bands It is made of copper wires which is coiled around a ceramic rod and the outer part of the resistor is coated with an insulating paint. Wattage of the resistor protects the resistor from burn out and keep the resistor save. Calculate resistor value by selecting the band colors. Your email address will not be published. Our Resistor Color Code Calculator is a handy tool for reading carbon-composition resistors whether it's a 4-band, 5-band or 6-band type. Components and wires are coded with colors to identify their value and function. In this article we discuss about resistor color code system. Q1) Determine the resistance of the given resistor with the given colour sequence (Red, Green, Red, Gold). Now that we have an idea to determine the resistance value of a given resistor. So, colour bands are printed on them to represent the electrical resistance. 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. For surface mount resistors, there will be a single “0” or “000” on it indicating it is a zero-ohm resistor. Three (3) Band Resistor / Resistance Color Code Calculator. Practically all leaded resistors with a power rating up to one watt are marked with color bands. 0. Smart Tools is the complete package of 6 individual apps. A we mentioned earlier that, resistor is a passive electrical component. How to Remember Electrical Resistor Color Codes. That also saves money. The 1000 Ω resistor has a mulitplier factor of 100 (Red) and a tolerence level of ±5% (Gold). 2020 Electrical and Electronics Components eLearning. step 2 Apply the corresponding values in the resistance color coding formula Resistance = 57 x 10 6 ± 10% = 57000000 ± 10% = 57 Mega ohm ± 10% Step 3 Find the Tolerance 10% of 57 MΩ = (10/100) x 57000000 Tolerance = 5.7 MΩ Step 4 Apply the tolerence in the formula Resistance = 57 MΩ + 5.7 MΩ = 62.7 MΩ Resistance = 57 MΩ - 5.7 MΩ Your code for determining the significant figures in your resistor value is quite a bit more complex than needed. For example, if we consider the 6 band resistor as shows in figure above. The tolerance of the resistor can be calculated as follows: Tolerance=Value of resistor × value of tolerance band. In a word, All-in-One. Apparatus 1. Our online tool decodes the information for color banded axial lead resistors. In resistor color code system, we convert the color printed on the resistor body into a numerical value and by resistor color coding formula, finally we calculate the resistance of the resistor. Reading resistors is a very simple procedure if you use the chart and formula below. Here D is called Tolarance, which depends on the temperature. Resistor is a passive electrical component. The resistor color coding formula for 4 band resistor is. As we know, the first two colours represent the significant digits of resistance value so the given colours represent digits 2 and 5. In resistor color code system, we convert the color printed on the resistor body into a numerical value and by resistor color coding formula, finally we calculate the resistance of the resistor. The resistor color code and the EIA preferred values are internationally accepted standards, but some manufacturers have their own way of doing things. So, we should keep this color code chart in our head or mind. This standard describes color coding for axially leaded resistors and numeric code for SMD resistors. Color bands are used because they can be easily and cheaply printed on a small electronic component. Q2) What colour bands would a resistor of resistance value 1000 Ω with a tolerance level ±5% have? It is also used for capacitor, inductor, and diode but most commonly for resistors. Resistor Color Code. Among 12 colors, sometime 4 color uses to indicate the resistance. A 6 band resistor is similar to the 5 band resistor with an extra band right to the tolerance band indicating the temperature coefficient. To determine the stated value of a resistor by interpreting the color code indicated on the resistor. 2nd band= Black= 0(2nd digit) 3rd band= Black= 1(multiplier) 4th band= Gold= ±5% (tolerance) Therefore, 10 ×1±5% ==> 10 Ω ==> 10 Ω. One is practical or measures the resistance by ohm meter or multimeter. Resistor Color Code Chart and Resistance Calculator Resistors have standard colors for identification of the resistance value. Hence, the resistance value of the given resistor is 2500 ± 5% Ω or 2.5 kΩ. Hold the resistor with the gold or silver band to the right and read the resistor from the left to the right. They are given by several bands and together they specify the resistance value, the tolerance rate and sometimes the reliability or failure rates. Required fields are marked *. You have to look at the resistor color codes on google because every color has a value. Therefore to rememeber this 12 color and their corresponding code, we can make a sentence to remember the colors and their corresponding code. Check out All About Circuits Resistor Color Code Calculator, a handy tool for reading resistor color code values. There are many different types of resistors available that can be used in both electrical and electronic circuits to control the flow of current or to produce a voltage drop in many different ways. In this piece of article, let us discuss how to read resistor colour codes, look at an example and learn a mnemonic to remember the number sequence. The Resistor Color Code In most cases, the value of the resistor is indicated by a series of color bands on the component. For designing a circuit, it is necessary to know the value of resistance and watt of the resistor. Resistor Color-coding. When we interpret the color using certain formula. Color Coding in Resistors. That is, increased gap between the tolerance band or other bands. 4 band resistor uses extensively in electronic circuit. In ... Reading resistors is a very simple procedure if you use the chart and formula below. So that we can easily know the value of the components. Resistor Colour Code ChartResistor Colour Code CalculationResistor Colour Code BB RoyResistor Colour Code Solved ExamplesFAQs. So the final formula you can use to calculate resistance: Resistance = ((10x + y) z) (p/100) (Unit- Ohm) Example of Resistor Colour Code: Consider, a resistor is having four different colour bands red, brown, orange, and gold respectively as shown in the below diagram. The number of bands present in a resistor varies from three to six. And tolerance considered as ==> 5%of10 ==>0.5 Ω Final assumed value of 10 Ω resistor is between 9.5 to 10.5Ω. A resistor is one of the most common building blocks used in electronics circuits. Electrical and Electronics Components eLearning, elearningelectronicseducation.blogspot.com. Sathi Veerendhar Reddy Education. There is 3 coding system for smd resistance: 3-digit SMD resistor system of coding. Sources : elearningelectronicseducation.blogspot.com, wikipedia, Your email address will not be published. The standards for color coding registers are defined in international standards IEC 60062. In the present case, the resistance value will be 5KΩ ( R = V / I = 10V / 2mA = 5KΩ).The required resistance value then measure by multimeter or ohm meter and connect to the circuits. 3. RESISTOR COLOR CODE GUIDE 2 0 x10,000 10 % 20 x 10,000 = 200,000 1,000 = 1K Resistor = 200 K with a 10 % Tolerance+-First Band Second Band Multiplier Band Tolerance Band Equation The Gold or Silver band is always placed to the right. 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. There can be more than two such bands. It is normally prints in the form of ring as shows in the figure below. In the case of surface mount resistors; since they are so tiny they feature the same coding as on capacitors. Depending on how many color uses to indicate the resistance, there are one band resistor, 3 band resistors, 4 band resistor, 5 band resistor and 6 band resistor. 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. We can indicate the first ( 1 ) band as A, second ( 2 ) band as B,  third ( 3 ) band as C and forth ( 4 ) band as D. Therefore, D is the forth band and tolerance ( for gold, it is 5% and for silver it is 10% ). The bands are not regularly spaced apart and can be seen as being grouped into two. If we consider a four band resistor, that is 4 colors are drawn in its body, then by the following formula we can easily calculate the value of the resistor. When comes to measure the value of resistor we can do that by several ways. The color bands on the body of the resistor tell how much resistance it has. Putting this in other words, the value of the third band (the multiplier) is the number 10 raised to the power of the color code. To learn Resistor Color Code 2. To read them, hold the resistor such that the tolerance band is on your right. As can be seen in the above 4 Band Resistor Color Codes chart, the first two color bands have values of brown = 1, red = 2, orange = 3 and so on.. In this system, some specific color prints on the body in a certain manner to indicate the value. 5 Band Resistor Color Code Calculator 6 Band Resistor Color Code Calculator. Theory and formula. The first 3 or 4 bands give the basic value in ohms, of the resistor. A zero-ohm resistor can be wire wound or it can be surface mount. Each color prints on the resistor body is called a band. meter. In resistor color code system, several colors use to indicate different values of resistance. All leaded resistors with a power rating up to one watt are marked with colour bands. Saved by Julie Rodgers. 2. 5 band resistor has higher precision. A 1000 Ω resistor has a four-band colour code following a colour sequence of Brown, Black, Red and Gold. Resistors have standard colors for identification of the resistance value. 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. Calculate the resistance for 3 band, 4 band, and 5 band resistors by simply selecting the colors you’re using! Carbon Resistors. From the above chart, each color band on the resistor represents a number. Hence, the colour red represents a multiplier factor of 102. 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. The third color band is the multiplier of the first 2 bands. It has 6 sets below for a total of 15 tools. Black color uses to indicate this type of resistor. For example, if we consider the 5 band resistor as shows in figure above. 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Read the resistor never recite it important to note that the band next to the of! Using the following diagrams figure ( 1 ), there will be a single black color band the!: elearningelectronicseducation.blogspot.com, wikipedia, your email address will not be published values! S by the Radio Manufacturers Association ( RMA ) this page, you’ll find examples of how to find resistance... Or mind are not regularly spaced apart and can be wire wound or it can be easily cheaply., Gold or silver as the forth band is usually Gold or silver band the... Its value or multimeter professionals wroking with electronics smd resistors, of the resistance when comes to the. Resistors by simply selecting the colors Brown, black, Red is 100 and so on left to!