Jun 7, 2014

Resistance Color Code and Resistance Calculation


Resistors are offered in a variety of different resistance value from fraction of Ohms (Ω) to millions of Ohm. The resistance values, tolerance, and power rating are usually written on top of the body of resistors as nos. or letters while the resistors body is vast adequate to read the print, such as high power resistors.
The resistor color code marks are at all times read one band at a stretch beginning from the left to right, with the bigger width tolerance band concerned with the right side representing its tolerance. By corresponding the color of the 1st band with its related number in the numeral column of the color chart under the first digit is recognized and this denotes the first digit of the resistance value.

Another time, by matching the color of the 2nd band with its related number in the numeral (digit) column of the color graph table we get the following digit of the resistance value and so on.

Resistors color code

The resistance of the resistors and its tolerance are noticeable on the body of the resistors with colour code bands that indicates the resistance values.
There are 3 types of color codes:
  • 4-bands: digit, digit, multiplier, tolerance.
  • 5-bands: digit, digit, digit, multiplier, tolerance.
  • 6-bands: digit, digit, digit, multiplier, tolerance, temperature coefficient. 

Resistance calculation of 4 bands resistor:

R = (10×digit1+digit2) × multiplier.
Resistance calculation of 5 or 6 bands resistor:
R = (100×digit1+10×digit2+digit3) × multiplier.

If you enjoyed this post and wish to be informed whenever a new post is published, then make sure you subscribe to our regular Email Updates!


Read Comment Policy
We have Zero Tolerance to Spam. Chessy Comments and Comments with Links will be deleted immediately upon our review.

  1. I recently came across your blog and have been reading along. I thought I would leave my first comment. I don’t know what to say except that I have enjoyed reading. imu genova

  2. I have bookmarked your blog, the articles are way better than other similar blogs.. thanks for a great blog! Best Wireless Charging for Google pixel 2 XL

  3. This is extremely fascinating substance! I have completely delighted in perusing your focuses and have reached the conclusion that you are right about a hefty portion of them. You are extraordinary.  Plus d'infos ici

  4. Numerous organizations list a technology as one of their upper hands. Is this substantial? At times indeed, however In many cases no. oak house Belvidere

  5. You know your projects stand out of the herd. There is something special about them. It seems to me all of them are really brilliant! Product Portal

  6. They have researchers doing surveys, digging deep into what the market demands, etc. Not meeting the demands of the consumers could lead to a decline in profit so it's important for companies to have researchers assigned to different places to know what the people want and need.max

  7. Nice post! This is a very nice blog that I will definitively come back to more times this year! Thanks for informative post.
    bootstrap studio nulled

  8. I am truly getting a charge out of perusing your elegantly composed articles. It would seem that you spend a considerable measure of exertion and time on your blog. I have bookmarked it and I am anticipating perusing new articles. Keep doing awesome. custom sticker printing at home

  9. Wow, cool post. I'd like to write like this too - taking time and real hard work to make a great article... but I put things off too much and never seem to get started. Thanks though. cheap printing services online

  10. Ace4sure is the website that deals in preparation material for the exam for many years. According to my exposure and research, this is the right platform where you can get exact 1z0-1060 exam dumps.

  11. Pleasant to be going by your web journal once more, it has been months for me. Well this article i've been sat tight for so long. I require this article to finish my task in the school, and it has same theme with your article. Much obliged, incredible offer. Pro Well Tech

  12. A tech must pursue his architect's lead and should always look at the specialist to check whether he needs something. See more

  13. Excellent read, Positive site, where did u come up with the information on this posting?I have read a few of the articles on your website now, and I really like your style. Thanks a million and please keep up the effective work. cheap collated printing in word

  14. I at long last discovered astounding post here.I will get back here. I just added your blog to my bookmark area. thanks.Quality presents is the major on welcome the guests to visit the site page, that is the thing that this site page is giving. photoshop vector images free