Electronics Forum | Wed Aug 21 17:44:32 EDT 2002 | davef
Splitting hairs, I expect SIR of all solderability protection, including OSP, to decrease after reflow. What�s more, I expect the SIR of all solderability protection to pretty much decrease over time. The �comb pattern� test specimens meet requirem
Electronics Forum | Wed Jul 12 08:57:58 EDT 2006 | Evamaria
Mike , Look at http://www.circuittechctr.com, Guidebook, section 6,6.1. This method of attaching jumper wires is in accordance to the acceptability criteria of IPC-A-610 section 11.2.4.3. You did not specify what wire AWG is. I am assuming it is sma
Electronics Forum | Thu Jun 27 12:45:03 EDT 2019 | jmoote
We have two Topaz machines,and use them regularly. However, we have a board that contains a standoff and a large electrolytic cap, and one is 11.2 mm high, the other 13mm. Is it at all possible to modify or upgrade the Topaz to handle these parts?
Electronics Forum | Mon Nov 15 12:13:41 EST 1999 | Dave F
Steve: There are guidelines for determining if your aperture has the correct proportions to the foil thickness. Maybe that�s what you�re looking for: 1 Aspect ratio = aperture width/foil thickness Chemically etched SB GT 1.5 Laser cut SB GT 1.2
Electronics Forum | Mon Apr 22 13:05:52 EDT 2002 | davef
Try: Somar Corporation, 11-2, Ginza 4-chome, Chuo-ku Tokyo 104-8109, JAPAN http://www.horiba.co.jp/ +81 3 35422151 +81 3 35422056 Not to imply there is anything wrong with Somar's material [having never used the material], just looking at an alterna
Electronics Forum | Wed Jan 18 06:22:23 EST 2012 | ngineer
I rang out the bases, the connectors are common (i.e from top to bottom, 1-1, 2-2, 3-3,4-4). I also measured voltage on the connectors. Front and back don't have any voltage, and the lights don't come on when I press the buttons. Left and Right ar
Electronics Forum | Sun Dec 13 11:35:59 EST 1998 | Jim Gustin
I suggest that you display questions and responses in a slightly different order. Within any given string of Q's and A's, the topmost displayed item should be the oldest. The most recent item should be at the bottom. In this way, a viewer can easily
Electronics Forum | Tue Dec 15 09:15:12 EST 1998 | Clifford Peaslee @ SMTnet
| I suggest that you display questions and responses in a slightly different order. Within any given string of Q's and A's, the topmost displayed item should be the oldest. The most recent item should be at the bottom. In this way, a viewer can easil
Electronics Forum | Tue Apr 29 11:21:14 EDT 2008 | patrickbruneel
Verizon Supports Telcordia's Position on the RoHS Directive. New legislation known as "RoHS" (Reduction of Hazardous Substances) bans certain chemicals and metals from some electronic manufacturing. In order to maintain high and predictable network
Electronics Forum | Wed Mar 06 21:17:35 EST 2002 | davef
One, has anyone else ever experienced and dealt with a company debate regarding whether or not your reflow ovens should or should not be calibrated? Sure, it�s an excellent debating topic. We argue about stuff like this all the time. See, somebody
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