Electronics Forum | Wed Oct 31 21:52:10 EDT 2007 | davef
We wouldn't expect the ceramic of the capacitor to conduct very much heat. [We're surprised how high the thermal conductivity of Al2O3 is: (30W/m-�C).] Can we assume that you're talking about parts that are defective at incoming inspection?
Electronics Forum | Wed Mar 19 09:54:44 EDT 2008 | davef
Here's what we suggest: * Keep a 5-mm space between a board edge and a ceramic capacitor. * Mount the capacitor parallel relative to the edge. * Design pads about a half of the termination. * Fixture the board when using your pizza cutter.
Electronics Forum | Fri Oct 31 07:52:23 EDT 2008 | davef
For a better understanding of decoupling capacitors, look here: * http://en.wikipedia.org/wiki/Decoupling_capacitor * http://www.hottconsultants.com/techtips/decoupling.html * http://pcdandf.com/cms/content/view/3410/95/
Electronics Forum | Thu Nov 13 09:14:52 EST 2008 | raiders
Hi All, We encounter capacitor crack in the ICT, it contributes 2% of the failure. We are not sure whether these crack coming from the SMT. All these crack having the same pattern. Please refer to attached file. Anybody encounter the same thing befo
Electronics Forum | Fri Nov 14 17:41:09 EST 2008 | act_smt
So would you side to say that electrolytic capacitors have Flattened coined leads & should follow specs under that classification?
Electronics Forum | Mon Sep 28 10:36:03 EDT 2009 | Sean
Hi all, Anyone come across chip capacitor with 0402 size with appearance as shown in the attached file?? My customer claim that this appearance is not acceptable..Any idea in this case? Rgds, Sean
Electronics Forum | Thu Jun 17 21:28:07 EDT 2010 | bob2000
Hello: I would like to know if a radial capacitor (1000uf, 25V)should be placed flash to the board? Thanks, Bob
Electronics Forum | Fri Jun 18 11:43:38 EDT 2010 | davef
With proper lead forming, a radial capacitor (1000uf, 25V) can be placed flush to the board. If you place it as you describe, does your product application environment require staking?
Electronics Forum | Sat Jun 19 17:05:25 EDT 2010 | bob2000
Thanks for sharing your work experience. I found a reference material with IPC standard (IPC 610) that specifies an exact heigth that a capacitor needs to be placed, I will check this standard specifications in more depth.
Electronics Forum | Sun Aug 29 12:52:31 EDT 2010 | davef
We know nothing about your process, but Kemet ceramic capacitors can be wave soldered. Kemet wrote papers on wave soldering their parts.
