There is a PTH via underneath the ceramic component. I have not cross sectioned to that plane yet. I will to understand the connection of the side terminations. Victor, -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Gary Crowell Sent: Friday, November 14, 2008 2:59 PM To: [log in to unmask] Subject: Re: [TN] Strange looking ceramic component I do hope there's a via under the cap on those ground pads... > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of gacrowell > Sent: Friday, November 14, 2008 1:52 PM > To: [log in to unmask] > Subject: Re: [TN] Strange looking ceramic component > > AKA X2Y caps. > > -------------------------------- > Gary A. Crowell Sr., P.E., CID+ > www.linkedin.com\in\garycrowellsr > Micron Technology; Boise, ID > (208) 368-5325 > > > > -----Original Message----- > > From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory > > Sent: Friday, November 14, 2008 12:37 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------