Electronics Forum | Tue Sep 22 16:39:10 EDT 2009 | rmitchell
Hi, We are getting a E-Hydra-1 Frame grabbing failed on caps and resistors and also a Light Curtain trigger X wagon. I spoke with mydata and they indicated the light curtain might be getting set off and causing the frame grabbing failure. I cleane
Electronics Forum | Thu Jan 03 15:53:28 EST 2019 | cbeneat
We did figure out the issue. The plastic cover inside the LED lighting unit had a slight film covering it, which made the picture slightly hazy. We had to disassemble the LED module to get at it, cleaned it and it was fine. I didn't think this would
Electronics Forum | Fri Oct 28 04:56:12 EDT 2016 | lilybell
I read a few posts here about resistor in led applications. The thing is, the resistor has clarified as this shows:was always use with a power source delivering a higher forward voltage than the led could tolerate(ex: a 9volt battery hook up to a 3w
Electronics Forum | Fri Jul 04 12:32:33 EDT 2003 | sam
I need some advice about a problem that happened in a SMT LED: The failure symphoms of this SMT LEDs is that the LED body itself seemed to be functional, but when soldering on the products, it showed good wetting and soldering, LEDs are bright and l
Electronics Forum | Sun Jul 06 10:07:03 EDT 2003 | MA/NY DDave
Hi Sam, Great answers so far. Let me take a stab at a few of your questions. Q1. whether this is named Pososity? I can't tell from your description. Several companies and the IPC have porosity tests to see if the Gold has good coverage of the und
Electronics Forum | Sun Jan 26 09:32:55 EST 2003 | davef
But soon after cleaning and drying with IPA, we find a white residue formation. A: IPA will not nothing to clean your board. The white residue is exactly what you should expect. Search the fine SMTnet Archives for background. >How do we avoid th
Electronics Forum | Thu Oct 31 11:08:12 EST 2002 | soupatech
Being very new to SMT I won't assume I know what the problem is but.... I had lots of air pockets in solder joints, 95% of the boards. Everyone I spoke to thought it was a problem with my process but when one board was sent to our supplier they admi
Electronics Forum | Fri Oct 01 14:10:40 EDT 2010 | thanh
KINGBRIGHT LED #AAA3528SURKCGKC CAN BE WASH OR NOT??? any one running this part with Water flux and wash it?? we used to run with No Clean, but i want to change the process with water. thanks
Electronics Forum | Tue Dec 24 20:04:04 EST 2019 | kylehunter
Hmm OK. Even a NASA article describes that rosin is safe not being cleaned lol.
Electronics Forum | Fri Jul 04 21:09:04 EDT 2003 | ramanandkini
I have a CEM-1 PCB board with 35 microns copper. This is PCB is finished with SMOBC+HALS. We do solder SMT LEDs, but till date we do not have problems that you have listed. The LEDs are good & bright. It even passed high & low temp cycle tests (-40 t
