Electronics Forum | Wed Aug 22 16:00:02 EDT 2007 | razor1
The color variation in the solder mask from our PCB supplier varies to the point that we have problems with our AOI recognition and accuracy. We have not been successful at finding an industry spec which outlines solder mask color requirements. We
Electronics Forum | Tue Jun 21 14:35:11 EDT 2005 | lind
does anyone know how to read SMT zener color code? I need to figure one out that is blue, green, and violet.
Electronics Forum | Wed Aug 22 21:44:04 EDT 2007 | davef
Questions are: * Do these boards meet IPC-A-600? * What does your supplier say is the source of this color variation? * What steps is your supplier taking to make the boards more acceptable?
Electronics Forum | Mon Nov 22 12:45:52 EST 2021 | proceng1
You say the resistor is blown. Is the body discolored? Is it possible that these are not the colors, like maybe the first GOLD is actually orange? Perhaps post a photo?
Electronics Forum | Mon Nov 22 08:30:53 EST 2021 | zxcvb
Hello there! In one SMPS, I noticed a blown resistor with the following color code: yellow (4) Violet(7) Gold(?) Gold Black. I'm not sure what the value is. The dimensions of the resistor are those of a conventional MF0207 metal film resistor. I assu
Electronics Forum | Wed Jun 22 14:20:25 EDT 2005 | mmjm_1099
http://www.crystalradio.net/cal/diodeid.shtml
Electronics Forum | Fri Sep 14 17:22:54 EDT 2007 | golff
I have a changed on the white silkscreen to pink or purple. Do anyone come across with these problem before?
Electronics Forum | Fri Sep 21 16:31:07 EDT 2007 | adlsmt
P.S., Im the Cmiller in the old thread.
Electronics Forum | Tue Oct 15 11:16:30 EDT 2019 | charliedci
We have been using Cree 3 color LED's (CLV6A-FKB) in many products for several years (pic attached). At the rate of 3 to 5% of the units assembled with this LED, the Red LED fails. After touch up with soldering iron it functions. This happens to the
Electronics Forum | Mon Nov 22 21:57:52 EST 2021 | stephendo
Are they all evenly spaced? If that first gold is orange and the black is spaced farther apart than the others then it could a polarity band or not really a band. Don't know why a resistor would have one. If that is the case then it is a 47K 5%. Whi
