Electronics Forum | Fri Jan 29 12:59:47 EST 2010 | remullis
Something on the 5v side is pulling it down. I would check every thing associated with the harness you are disconnecting. Your shorting somewhere! Don't have a schematic in front of me. Also look for leads getting into the backside of your connecto
Electronics Forum | Mon Mar 25 14:41:50 EDT 2013 | markhoch
Just a thought, but have you pulled the datasheet for the part and confirmed that the plating on the leads is compatible with your current process/profile?
Electronics Forum | Tue Nov 05 16:41:53 EST 2002 | Ray M
This one's got me stumped, so I thought I'd throw it out for discussion: I have a 20 pin SMT ribbon connector by Molex that I've been using for about a year without problem, but recently things aren't looking so good. The solder is pulled up off of
Electronics Forum | Mon Feb 23 13:25:21 EST 1998 | Steve Gregory
Steve - you must not work to IPC class 2 or 3 requirements. If the solder is "pillowed" around the lead, I would strongly suspect a wetting problem. Most of the Paladium leads I see soldered have a strong line of demarcation but no pillowing. Hav
Electronics Forum | Mon Jul 08 13:19:06 EDT 2013 | williamaxler
There are a lot of things that you need to look at to figure this out. What type of flux are you using? Is this leaded or lead free? Do you have the gradient of the nozzle setup properly? Are these locations tied to plains? With that being said
Electronics Forum | Thu Jun 08 23:26:28 EDT 2006 | Shawn Vike
We are a small company, reletivly new to doing our own SMT (1 year) and we are having an issue, I think. We manufacture many board with no problems, but we have one that constently defeats us. This particular PCB has ENIG finish, and we have had th
Electronics Forum | Sun Feb 06 07:49:16 EST 2000 | Dave F
Casimir: A comment and a couple questions: * Have you considered a machine that forms component leads to "self-clinch?" With this forming components snap into hole in the boards with the proper finished lead length and requires not trimming after
Electronics Forum | Thu Sep 14 10:40:10 EDT 2006 | realchunks
Steve is right, why risk cross contamination and suffer real legal battles from your RoHS customers you guarantee lead free to. Al is also right. If your customer knows they are pulling the wool over the RoHS watchful eyes, why would you want to
Electronics Forum | Thu Feb 15 19:41:38 EST 2001 | davef
What do you mean by "But after performing temperature cycle test, the former aging rate (from the shear strength ) seems faster than the latter."? Comments are: I can't recall having heard the term "precipitation hardness" [not that that means anyt
Electronics Forum | Fri Apr 23 04:02:22 EDT 1999 | Scott Davies
I need to know if there are any special component pad designs that need to be considered when evaluating paste-in-hole? We have a few through hole connectors that are good candidates to place pre reflow. Does anyone have sugguestions. Thanks Chri
