Electronics Forum | Fri Nov 05 11:30:53 EDT 2010 | deanm
We have a Quad QSV-1 pick and place machine that has performed fine for us with the exception of cylindrical glass (MELF) type diodes. The machine often fails to pick these out of the tape to the point where it is easier to hand place them. As far
Electronics Forum | Thu Sep 13 15:44:02 EDT 2012 | mbnetto
Hi everbody, I'm facing some soldering problems with a Diode (SMA) during wave soldering process. During this process almost all the time one of the component pads have no solder, according to the picture dsc000604 attached. Some considerations: * T
Electronics Forum | Mon Nov 16 12:01:31 EST 2015 | spoiltforchoice
If you are lucky even a simple device has something resembling the part number written on it (doesn't look promising). If you are not what you will probably find whatever is printed on it is little more than a batch number. If you are even luckier yo
Electronics Forum | Fri Mar 21 15:51:23 EDT 2008 | g2garyg2
Thought I would reply and try to assist. PROMATION, my company, also manufactures Diode Laser soldering systems but with this stated we also manufacturer iron tip systems, soft beam systems and hot air solutions. The reasons are simple. Diode Laser
Electronics Forum | Tue Jun 17 09:22:02 EDT 2003 | davef
Higher that recommended is more brittle. Look here: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=17906 Q2: Will some of my Ceramic Caps crack during the wave soldering process because of the heat? A2: Probably Q3: Can you see any pos
Electronics Forum | Mon Oct 27 09:56:09 EST 2003 | sp1
A light emitting diode or "LED" doesn't care about voltage, it will light with approx. 10 to 20 milliamps of current. In a 12V system (such as an auto), a resistor of 1K ohms is ideal. At 12V, this allows about 12 mA of current, at 13.8V (approxima
Electronics Forum | Tue Jan 09 13:01:17 EST 2007 | stepheniii
Not unless it's a case of "the only difference is..." What I mean by that is more than once I've been told the only difference in a new rev is one component or one change. But the truth was that was the only reason for the change, and in fact there
Electronics Forum | Tue May 05 14:57:48 EDT 2020 | greezmky
I will have to check the nozzles to see if they are stuck up, but I don't believe so as I changed them all out a couple weeks ago. I have not went back to the feeder yet because I am not getting vision errors. I was able to see the diodes fly off on
Electronics Forum | Tue Dec 14 08:51:13 EST 1999 | Tony F
I am in need of some help. I was wondering if anyone knew of a site or book that I can get that will tell me what the marking codes on smt components are. Such as diodes and transistors. Any help offered is greatly appreciated
Electronics Forum | Wed Jun 12 22:35:03 EDT 2002 | jkhiew
We had alot of problem with melf diode short together after reflow soldering. The clearance is about 0.8mm & we used "v" shaped opening . PLease comment !
