2006-09-30 14:44:02 · 8 answers · asked by vincentb88 2 in Science & Mathematics ➔ Physics
The color-coded resistors typically have nominal values that have just 2 significant digits. Like 470 Ohms for example. And +/- 5% will be the tolerance on the nominal value. They cost less than the better resistors and part of the cost saving is because of the colored bands.
The higher cost resistors typically have 3 significant digits, like 511 Ohms and the tolerance on the actual versus the nominal value is generally +/- 1%. With these the value will sometimes still need to be decoded. 511 Ohms might have a part number that includes 5110 where the zero is the power of ten multiplier. 5111 would be 5.11K, 5112 would be 51.1K etc. It sometimes depends on the wattage. A higher wattage resistor is bigger so there is more space for more information.
2006-09-30 15:09:46 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋
Resistor Coloring
2016-12-13 05:55:38 · answer #2 · answered by ? 4 · 0⤊ 0⤋
I can't give you any advantages....sorry. I've always been vehemently opposed to this ridiculous method of 'coding' resistors.
Why?
Well, if they can methodically, and meticulously print multi colored bands on teeny tiny parts like resistors, why the he|| don't they just go ahead and print the doggone values on them?!
This has GOT to be one of THE stupidest practices in the technical indistry that I've ever seen.
But no....they have to print confusing, varying numbers and meanings of colored bands, so that you have to memorize two or three different 'charts' of codes every doggone time you pick up a resistor and look at it.
2006-09-30 14:52:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
advantages: quickly identity of resisters. Readable from any place. industry generally happening color codes. includes the resister tolerance (2%,5%,10%,ect.) hazards: the colors could be extremely puzzled at situations, fantastically on older resisters: pink / brown - gold / yellow - white / gray - and so on. the colors replace into very complicated to be certain if the resister has been overheated - case in point, yellow or pink could seem as brown. no longer functional for SMT (floor mount technologies) quite small resisters (they actually print the linked fee on them - a 102 skill that's a 10 observed by skill of two zeros, or 1K ohm)
2016-12-12 18:12:58 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Advantages:
Fast identification of resisters.
Readable from any position.
Industry standard color codes.
Includes the resister tolerance (2%,5%,10%,ect.)
Disadvantages:
The colors can be easily confused at times, especially on older resisters: Red / brown - gold / yellow - white / gray - and so on.
The colors become very difficult to determine if the resister has been overheated - for instance, yellow or red may appear as brown.
Not practical for SMT (surface mount technology) extremely small resisters (they actually print the value on them - a 102 means it is a 10 followed by 2 zeros, or 1K ohm)
2006-09-30 16:34:39 · answer #5 · answered by LeAnne 7 · 0⤊ 0⤋
The biggest and only advantage is You can read the value after placed in the board at the time of repair. Ofcourse we can not hire color blind technitians.
2006-09-30 15:30:11 · answer #6 · answered by Dr M 5 · 0⤊ 0⤋
The biggest disadvantage I ever thought about is that it does not allow colorblind people to pursue a career in electronics.
2006-09-30 15:20:18 · answer #7 · answered by Wishbone 2 · 0⤊ 0⤋
Color coding sure beats using a meter for every resistor.
2006-09-30 14:47:49 · answer #8 · answered by Anonymous · 0⤊ 1⤋