Hi guys, The data sheet is here: http://tinyurl.com/fpgqa I notice that it has one long connection running along the underside, presumably for heat transfer. John John Burke Senior Manager - Operations , Optichron [log in to unmask] W: 510 249 5233 M: 408 515 4992 http://www.optichron.com Profile: https://www.linkedin.com/e/fps/2665502/ -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Werner Engelmaier Sent: Friday, April 14, 2006 1:01 PM To: [log in to unmask] Subject: Re: [TN] Mounting the Mitsubishi RD07MVS1 Surface Mount SLP package Hi bill, Could not locate a data sheet on Mitsubishi MOSFET RD07MVS1 at the given website: http://www.mitsubishichips.com/Global/index.html. Found a reliability section "III. FAILURE MECHANISMS OF SEMICONDUCTOR DEVICES". However, this section does not give you much confidence. For one, they use Norris-Landzberg [many Japanese companies use it for some unfathonable reason] even so it has been clearly shown [by IBM no less shortly after the initial Norris-Landzberg paper publication] that it does not work for solder, because it cannot account for dwell time effects. For another, they report results from testing to low T-extremes from -40 to -100C [!?], and show failures as early as 30 cycles [!?]. None of this gives me a warm, fuzzy feeling. Werner --------------------------------------------------- Technet Mail List provided as a 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/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 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------