Electronics Forum | Tue Mar 15 16:51:59 EST 2005 | Praveen
Hello: I am looking for papers/information on correlation between lead protrusion and reliability studies conducted on Through-Hole Technologies. I would really appreciate it if information on the same could be made available. Thanks and have a nic
Electronics Forum | Wed Mar 16 18:39:55 EST 2005 | KT
I am looking for the same. IPC 610D does mention about the solder fill based on the class (A,B,C). But, there is no exhaustive study that I have come across. Please let me know if you find any. KT
Electronics Forum | Thu Jan 29 11:30:56 EST 2009 | rgduval
As others have said, you'll have some difficulties getting good reflow on pb-free out of a 3-zone oven. We did it with a 4-zone for awhile, but only had really good success on low thermal density boards. That said, you should definitely check your
Electronics Forum | Fri Jul 20 11:48:22 EDT 2007 | muse95
I agree with Chris. Not all but SOME components definitely had to change to be able to withstand higher heat. I would watch out for some plastic connectors, possibly some active components, and definitely many electrolytic caps. Older stock compone
Electronics Forum | Tue Jun 08 12:49:41 EDT 1999 | Dave F
| Hi,my master | How to iron out such soldering bridge with below conditions: | 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. | 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB | 3.using spraying fluxer and n
Electronics Forum | Tue Jun 08 13:06:53 EDT 1999 | Kevin Hussey
| | Hi,my master | | How to iron out such soldering bridge with below conditions: | | 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. | | 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB | | 3.using spraying fl
Electronics Forum | Tue Jun 08 17:52:53 EDT 1999 | Chrys Shea
| | | Hi,my master | | | How to iron out such soldering bridge with below conditions: | | | 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. | | | 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB | | | 3.using s
Electronics Forum | Mon May 21 16:11:16 EDT 2012 | solrac
What is the lead protrusion?
Electronics Forum | Wed Sep 22 22:32:12 EDT 2004 | pdeuel
We use a chunkee trimmer in prep. Cut bend and form all thru hole parts before first assembly.
Electronics Forum | Wed Jul 17 10:22:15 EDT 2013 | rgduval
Sure. Section 7.4 covers unsupported holes, and defines the usual standards. Clinching, fillet on the plated side, lead protrusion, etc. Cheers, ..rob
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