Victor, We also use a lot of these filter caps. I am not sure about the IPC but I do think the end terminations are to small. It looks like ~50% of the end termination is solderable, so you may have some issues like reliability and definitely self centering (as your photos show). I would definitely recommend a larger pad, equal to or slightly larger (~10%) than the end termination of the part. You might be Ok with as designed but I would not want to bet on it without reliabilties but in. Werner or some others could probably tell you if the solder joint is enough to have the warm and fuzzy. Sorry not to have more, FNK Frank N Kimmey CID+ Manager - PCB Design Global Product Development Powerwave Technologies Inc Mobile 916-670-0645 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez Sent: Friday, November 14, 2008 11:51 AM To: [log in to unmask] Subject: Re: [TN] Strange looking ceramic component Steve, Thanks for posted my photos. I hope to get some interesting comments. Victor, -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory Sent: Friday, November 14, 2008 1:37 PM To: [log in to unmask] Subject: Re: [TN] Strange looking ceramic component Hi Victor, Sorry for not getting your pictures posted sooner. I've been busy with a fire here... Anyways, got your pics up now: http://stevezeva.homestead.com/files/PWB-FL1-1.JPG http://stevezeva.homestead.com/files/PWB-FL1-1a.JPG I'm not an electrical engineer, but I do know that they are filter capacitors used to help with EMI. We place a lot of them on quite a few assemblies. Steve -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez Sent: Friday, November 14, 2008 10:03 AM To: [log in to unmask] Subject: [TN] Strange looking ceramic component Fellow TechNetters: I have a ceramic component, capacitor, with four solder joint terminations. My main concern is the component body size to copper pad ratio. Do they violate IPC standards? I sent Steve G. some photos to upload to his web page. Victor, --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------