COLOR CODING OF A RESISTOR
The colors brown, red, green, blue, and violet are used as tolerance codes on 5-band resistors only. All 5-band resistors use a colored tolerance band. The blank (20%) “band” is only used with the “4-band” code (3 colored bands + a blank “band”).
Example #1
A resistor colored Yellow-Violet-Orange-Gold would be 47 kΩ with a tolerance of +/- 5%.
Example #2
A resistor colored Green-Red-Gold-Silver would be 5.2 Ω with a tolerance of +/- 10%.
Example #3
A resistor colored White-Violet-Black would be 97 Ω with a tolerance of +/- 20%. When you see only three color bands on a resistor, you know that it is actually a 4-band code with a blank (20%) tolerance band.
Example #4
A resistor colored Orange-Orange-Black-Brown-Violet would be 3.3 kΩ with a tolerance of +/- 0.1%.
Example #5
A resistor colored Brown-Green-Grey-Silver-Red would be 1.58 Ω with a tolerance of +/- 2%.
Example #6
A resistor colored Blue-Brown-Green-Silver-Blue would be 6.15 Ω with a tolerance of +/- 0.25%.
Hi Mam Rics! So is there other ways or techniques on how we can easily memorize the list of color codes?
ReplyDeleteYes Maam Maria, There is another way to memorize the color bands. Check this out. "Big Boys Race Our Young Girls But Violet Generally Wins. :)"
ReplyDeleteGood Day Maam Rics! :)
ReplyDeleteI have a question, I want to ask why is that the 4 banded resistor is more popular and commonly used than the 5 banded resistor? I asked this question because I'm not really familiar with the 5 banded resistor. Thankyou in advance :)
Thanks for the good question. 4 band resistor is the most commonly used in electronic world because of it's value. 5 band resistor has a higher value than 4 band resistor. In a circuit, it depends on you of what value of a resistor that you're going to use.
DeleteMam. Rics pano pag puro violet lang tapos yung tolerance nya ay 20℅
ReplyDeleteAerol, that color band will do. Violet=7, Violet=7, Violet=10 raised to 7 plus none tolerance which is 20%. The answer will be 770 MEG ohms 20%. 770000000 since Mega means 6 zeros we will move 6 times to the left. That's why 770 MEG ohms 20% is the answer :) Im not sure if that color band is available in the market :D
ReplyDeleteWhat is the main difference between the conductor and insulator that causes more valence electron to the insulator than the conductor?
ReplyDeleteHoneylane, you asked in the wrong topic in this blog. still, i will answer your question. Materials that have free electrons and allow electrical current to flow easily are called conductors. Many materials do not have any free electrons. Because of this fact, they do not tend to share their electrons very easily and do not make good conductors of electrical currents. These materials are called insulators. Elements that has less atoms at the valence shell are better conductors :)
Deletemaam I have a question for you why we need color coding instead of putting the exact ohm, maximum and minimum of resistor?
ReplyDeletepatrick lacar
Patrick, Color coding was made to lessen the force of human to do work. It is more precise if you want to get the value of a resistor quickly instead of measuring it by using a multimeter. :)
DeleteIs there any more colors in the insulator
ReplyDeleteCristian, i noticed that you're confused with the topic. Did you mean "Is there any more colors in the RESISTOR?" If that is your question then, there is no other additional to the original colors which are Black, brown, red, orange, yellow, green, blue, violet, gray and white :)
DeleteMaam, nag search po ako about resistors dati, dba po may 6 bands pa, tapos po ung band na un represents temperature? Di ko lang po sure. Yun po ba yun? Panu po mareread un or malalaman ung temp.?
ReplyDeleteCarlyn, 6 bands resistor is read as: the first three colors is the significant values, fourth color is the multiplier, fifth color is the tolerance and sixth color is for the temperature. The resistance-change factor per degree Celsius of temperature change is called the temperature coefficient of resistance. This factor is represented by the Greek lower-case letter “alpha” (α). A positive coefficient for a material means that its resistance increases with an increase in temperature. :)
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ReplyDeletehi ma'am good day ! what's inside the resistor '? I'm just curious :D
ReplyDeleteHi Vin, What type of resistor are you referring to? For example, carbon-film resistor, inside of it there is a carbon mixture that helps the component to resist the flow of current. There is an insulating material too before the connecting leads outside :)
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