Electronics Forum | Tue May 28 09:08:52 EDT 2002 | pjc
Silkscreening is falling out of favor, as it should. SMT IC devices can have their "pin one" solder lands indicated by a round mark, like a fiducial or a "1" mark, both made from either the copper clad PWB material or silkscreened. I have seen some w
Electronics Forum | Tue May 28 21:00:59 EDT 2002 | davef
That is the rub here, isn�t it? For those posting, it�s easier [but much slower] to start a new thread than to search the archives. [And posters could view their issue so unique and novel that it could never have been discussed several years earlie
Electronics Forum | Tue Jun 24 12:15:17 EDT 2014 | davx
Hi Guys, I have a little keyfob that one of the buttons has stopped working. I have been trying to diagnose the fault and think I have found the offending component. It looks like one of the diodes is chipped slightly. I have also checked the resis
Electronics Forum | Tue Jan 05 14:37:18 EST 1999 | Dave f
| I would like to know if it exist a croos reference book for marking code on smt device? | I'm fixing a unit now and try to know what are the following devices: | The look like transistors and are mark like that "8A" |
Electronics Forum | Mon Jul 12 11:11:25 EDT 2004 | Stefan
For laser marking you don�t require as powerful lasers then for cutting. A 20 Watt laser diode does already a good job. Because of the safety requirements the laser operates in an enclosure, which means more $$$ if you want to use the laser in line
Electronics Forum | Tue Aug 01 20:50:03 EDT 2023 | calebcsmt
If it was only 1 or 2 components on a reel that were backwards, I would lean more likely the cause just being the component was wrong direction in Tape from factory. Not much you can do from a Pick & Place perspective, generally.. Most machines use
Electronics Forum | Sat Sep 29 02:58:18 EDT 2012 | ericrr
I tried to look for "H890" on Internet and went nuts, (Thanks to Google) I would think H890 is part of a diode manufacturer part number. Have you tested it for a diode function? or maybe you have this is why you want a replacement. Tantalum capacito
Electronics Forum | Wed Jan 06 07:45:30 EST 2010 | davef
The transistor on your Audiovox VE926 Commax CL-70MA board is double marked. You are looking for a "DF S2N" You're not the first with this problem. Look here for leads: * http://www.fixya.com/support/t404099-audiovoxve926_no_picture * http://www.f
Electronics Forum | Mon Aug 27 09:14:51 EDT 2012 | rgduval
We've seen a number of 0603 parts not being marked, more and more often in the market. Unfortunately, we never narrowed it down to whether or not it was manufacturer related, or separate product lines within a single manufacturer that were available
Electronics Forum | Tue Jul 23 12:02:17 EDT 2002 | gdstanton
Ken, Excellent discussion!!! I've also seen this problem. Spent and am still spending significant time policing. I don't think it is just a buyer issue though. There are many dimensions to the problem. Suppliers, Engineering, Manufacturing, and
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