Hi All Today's question concerns capacitors: Going through the data sheets on AVX's web site concerning capacitors (X7R dielectric in particular), I find a note that 0402, 0504, and 0603 are for reflow soldering only. Also, 1808 and up are recommended for reflow soldering only. I understand the reasoning behind reflow soldering 1808's and larger, but what's with the small ones? A quick check of the Vishay site did not turn up the same process note. The only theory I have at this point is this: if wave soldering 0603s, you may end up with a big solder fillet, perhaps too large to allow stress relaxing / creep in the solder joint. Good theory, or is there a better reason out there? Thanks and have a good day! regards Graham Collins Process Engineer, Litton Systems Canada, Atlantic Facility (902) 873-2000 ext 6215 ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################