Electronics Forum: 2010 crack (Page 1 of 5)

ceramic cap crack

Electronics Forum | Sat Jun 19 08:32:49 EDT 2010 | davef

Please describe the location and appearance of the crack

ceramic cap crack

Electronics Forum | Mon Jun 21 12:02:36 EDT 2010 | roland_grenier

check your de-panelling process if you are using break-out tabs or V scoring.

ceramic cap crack

Electronics Forum | Sun Jun 27 22:25:51 EDT 2010 | leadthree

*** silly question deleted, there are no 100nF NPO ***

ceramic cap crack

Electronics Forum | Sat Jun 19 00:49:17 EDT 2010 | mun4o

Hi all, lately ofen I have problem with cracked ceramic capacitors.We use 0805 and 0603 cap. Samsung.ICT measure diferent capacity of nominal.If I tray to desoldering component , then component cracked.I think , that the reason is the moisture in com

ceramic cap crack

Electronics Forum | Mon Jun 21 02:15:03 EDT 2010 | ppcbs

We also encountered the crack case in multi layer Ceramic Cap,0603 after touch up. Most failure were on the terminals. Previously, we used 0805 instead 0603.that time, failure were very few.

ceramic cap crack

Electronics Forum | Tue Jul 06 12:06:32 EDT 2010 | baildl632

Is the board a two sided smt board? If so, where are the standoffs (board supports) located during the second side run? The 0805 being thicker than the 0603 may explain why 0805 was cracked less.

ceramic cap crack

Electronics Forum | Mon Jul 12 00:23:02 EDT 2010 | leadthree

I had cracking caps from the ICT and a variation in the length of the probes (due to wear and tear) that press down the PCB. That put lots of mechanical stress on the PCB. So have also a close look at the ICT, or another other test fixtures you use.

ceramic cap crack

Electronics Forum | Tue Jun 22 08:37:52 EDT 2010 | davef

Dennis: These "terminal detach failures" probably are caused by thermal shocking of the components. * Preheat the components * Use a hot air pencil rather than a soldering iron

ceramic cap crack

Electronics Forum | Fri Jun 25 05:34:40 EDT 2010 | ppcbs

Hi iv40 Try with NIC ceramic capacitor that was tested in wet process. We hav succeed with these cap after we found some failure with Kemet ceramic Cap which tested in dry test process while manufacturing.

ceramic cap crack

Electronics Forum | Fri Jun 25 08:38:37 EDT 2010 | mun4o

Thanks, Dennis. That is a good idea, but I have problem :) - our logistic department lookig for cheap components...What other mnfg of cap you use? Regards,

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