Hi All, I need to clarify myself about the condition 5.2 IPC-A-610. My company is a EMS and not always the parameter H is an user-determined dimension. A diode of 1amp or more is a high heat dissipating component, so I think that to be mounted off the board is a reliability issue because of the increase of RTH. I would like to know your opinion. Augustin Stan --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------