Electronics Forum | Mon Jul 23 09:55:26 EDT 2018 | mgerrior
have not seen this issue personally, often identify cracks on MLCC parts but never dark spots. May be worthwhile to replace as a precaution if at all possible.
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
Electronics Forum | Tue Jul 01 07:08:33 EDT 2003 | iman
suggest you check the preheat conditioning in the wavesolder process is sufficient, as this is the main culprit for micro-crack CAPs ?
Electronics Forum | Fri Apr 18 16:53:25 EDT 2003 | takfire
DST, What was the crack signature? Was the crack parallel with the internal electrodes or 45� with the terminal electrode? It is also important to determine the orientation of the failed caps on the PCB (in regards to depaneling). Perhaps the cap
Electronics Forum | Fri Jun 20 12:44:18 EDT 2003 | sasha
We had this problem with 0805 0.1 mF also. This problem was only with this capacitor. We have replaced all these capacitor after the ninth occurrence. My opinion - it is a defect of the manufacturer. Please inform the manufacturer of your capacitor.
Electronics Forum | Fri Jun 20 10:27:19 EDT 2003 | Cristiano Dick Smiderle
Hi We are experiencing serious problem with ceramic capacitors. They are with low electrical resistence and the problem is intermittent. We found some of them with micro cracks but not all. What could be the causes for this problem? We are su
Electronics Forum | Tue Jul 01 14:15:30 EDT 2003 | cristiano
Please send us more information about how the glue dots can cause capacitor cracks. I didn�t understand why it could happen. Thanks
Electronics Forum | Wed Jun 25 18:35:28 EDT 2003 | Brian W.
Most of the time, Ceramic cracks are cracked due to mechanical stress. Check your depaneling methods. Cermaic caps that are close and perpendicular to the board edge are especially susceptible.
Electronics Forum | Thu Apr 10 07:24:56 EDT 2003 | pjc
I had a similar problem with cracked caps. I checked all my processes and finally found that the caps were cracked in the tape. Check the condition of the caps in the tape. This was unique to one mfg.- EPCOS.
Electronics Forum | Tue Jul 01 11:15:43 EDT 2003 | PH
Are these caps on the bottom side or topside? Bottomside could be the glue dots are too big for the caps your putting down, the glue cures and then the solder is putting force on the edges of the cap causing cracks.. Other than that agree with oth
winsouce.jpg)
.gif)
