(Says z)īand D: The fourth band (D) or last band shows the tolerance in percentage (%). (Says y)īand C: Third colour band (C) is the decimal multiplier and gives the number of zero after two digits. (Says x)īand B: The second colour band (B) represents the second digit of the numerical value of resistance. Here, each band position and its colour has specific significance to calculate resistance value.īand A: A first colour band (A) represents the first digit of the numerical value of the resistance. You can use this simple phrase to remember the sequence color band and its values. Note: I know, it is not easy to remember the value corresponding to each color band. And the last band (D) shows the tolerance of resistance in percentage.įirstly, you should refer the resistor colour band table given below. The first of three different colour band (A, B, C) shows a different value of resistance. We consider as, a resistor consists of four different color bands (A, B, C, and D printed on the resistor body) as shown in the below figure. The power rating of the resistor depends upon the physical size of the resistor. The colour bands on the resistor are used to identify the value and tolerance or resistance. Let’s see in details, How to calculate Resistance using colour code? And it depends upon the colour code/band printed on the resistor.īefore using any resistor in an electronic circuit, you need to find out the first resistance value of the resistor. In a previous article, we have seen the basics information about resistors with their colour bands.Įach resistor has a specific resistance value as per designing colour band. Please consider making a contribution to wikiHow today. Your support helps wikiHow to create more in-depth illustrated articles and videos and to share our trusted brand of instructional content with millions of people all over the world. Amid the current public health and economic crises, when the world is shifting dramatically and we are all learning and adapting to changes in daily life, people need wikiHow more than ever. Anyway, on with the better one! Write this down in a prominent place and you’ll have it committed to permanent memory in no time!Įvery day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it’s keeping you safer, healthier, or improving your well-being.
The old mnemonic was rather, well, disturbing, and a conscientious person would never recite it. Resistor color codes are something that every electronics hobbyist should remember. This article has been viewed 220,340 times. To create this article, 23 people, some anonymous, worked to edit and improve it over time.
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