Electronics Forum | Mon Apr 26 18:45:32 EDT 2021 | rgduval
I've had the most success in a check/double-check set up. Most people will tell you that it's labor intensive, and they're not wrong. However, I suspect that those people have never had to manually change two components on a thousand boards at a sh
Electronics Forum | Sun Apr 25 08:06:47 EDT 2021 | pradeep14
Presently we are facing wrong loading of zener diode components in SMT Line. * In the particular product, we have two different part numbers of zener diode but the package and color code is same.Only the voltage is different is there in between two p
Electronics Forum | Wed Aug 05 09:41:50 EDT 2015 | kmots15
For upside down and rotated parts try using the index mark (F6) in the package database for that component, at least then the machine should look for a unique feature on the bottom and if it cannot find it the part will be rejected. For the index ma
Electronics Forum | Wed May 09 09:54:01 EDT 2012 | swag
We build all our stuff in "kits" as you describe. We don't have much trouble running short on parts at the end although most of our equip. is new which helps a lot. We also have feeders that can run in reverse on set-up stations and we reload parts
Electronics Forum | Thu Oct 28 20:31:52 EDT 1999 | JC Leigh
Hi all, Been thinking about this problem because it's costed us some errors before. For the same type of parts from different vendors, the polarity of parts in the taping may differ from vendor to vendor. (Actually, we find that parts from most ve
Electronics Forum | Tue Oct 25 16:27:46 EDT 2005 | stepheniii
It is not OK to use leadfree BGA's with a lead process. Other parts "should" be reverse compatable. But I first saw problems over 5 years ago with Paladium leads and a lead process. Don't confuse saying "it's ok to use lead free parts in a leaded p
Electronics Forum | Sun Oct 31 19:36:19 EST 1999 | JC Leigh
Can you please give me a pointer on where to find the component package orientation standard in the IPC? I think we'll work up a spec sheet for the folks in purchasing and let them handle the vendor side of this problem. Thanks for your help! JC
Electronics Forum | Fri Dec 10 12:40:44 EST 1999 | Brian W.
It sounds like the process is very labor intensive, and all the verification is done after the parts are soldered. Assuming you are hand placing the components: 1 - Contact Systems semi-automatic placement machine. It show polarity when placing, so
Electronics Forum | Thu Dec 09 18:21:20 EST 1999 | Boca
Mike, Russ is right, no 'normal' wave machine will solder PCB's with 1" long lead length. I have seen waves modified to clear up to 5/8" leads, but the deeper the wave the uglier things get. They get uglier in that a lot more dross is produced, con
Electronics Forum | Thu Dec 09 13:37:35 EST 1999 | Mike F
Does anyone have a suggestion for soldering boards with 1 inch long leads sticking out the bottom? Our vendor is using a drag solder machine, but I'm not happy with the preheat and controls on it. We assemble boards with numerous LED's( 200 to 700 pe
