[holland]

I've got some SMD resistors and some of them are sky blue with black lettering. All the other ones I've used have been black with white lettering. Does anyone know what the color signifies? Is it tolerance, wattage, something else?

Thanks.

 

[ericj]

Signifies what color of dye they used.

I don't think it means anything.

Just like metal films are usually blue but sometimes green or brown or beige or red or whatever.

 

[NelsonVandal]

The Japanese brand KOA's resistors are sky blue. I use them because my local vendor has them. Supposed to be high quality.

 

[beerguy0]

Quote:

Originally Posted by holland /img/forum/go_quote.gif I've got some SMD resistors and some of them are sky blue with black lettering. All the other ones I've used have been black with white lettering. Does anyone know what the color signifies? Is it tolerance, wattage, something else? Thanks.

AFAIK, it means nothing. I've seen 1% SMD resistors in light blue, dark blue, dark green, and black, with and w/o lettering. I have an engineering kit of .1% thin-film SMD resistors that happen to be light blue.

 

[threepointone]

pretty sure the blue ones are KOA--i've been stocking up on those =)

 

[pinkfloyd4ever]

ya, get a DMM if you don't have one dude

 

[applegd]

I used Vishay-Dale 0805 0.1% Thin-film resistors, they are green.

 

[ericj]

All just differnet colors of dye.

For a particular manufacturer it probably gives you a way to tell different models apart, but you'd have to read their datasheets to be sure.

 

[Fitz]

The blue ones taste better than the rest.