Typically, the IPC standard or whatever standard is listed on the assembly print would apply. If there are situations such as what you describe where the design clearly needs an exemption, and there are no form, fit, or function issues, a print note is added on the assembly drawing to allow the longer lead protrusions via an Engineering Change Notice that is signed off by the Design Engineer, Manufacturing Engineer, Documentation Engineer, etc., and the Customer. Within the industry the assembly print notes nearly always take priority over all applicable industry and workmanship standards, even over any conflicts caused by the assembly BOM. If there is not a noted exemption on the assembly print, then the standards called out on the print apply by default. For example, every assembly drawing should have numbered notations such as: "1. Assembly to fully conform to ANSI/J-STD-001, class three. 2. All workmanship shall be per HIL-HDBK-454," etc. On the drawing there should be a number inside of a box with an arrow pointing to one or more of the holes with the exemption and the quantity. The corresponding print note with the same number would state "Staked harness terminations may exceed lead protrusion requirements in J-STD-001 for item Find Number XX (the find number of the harness on the assembly Bill of Materials), but may not protrude more than .155" from bottom surface of assembly" or some such wording. If your inspector or customer has noted that the leads are longer than .098", then you need to cover this with an Engineering Change Order or Notice or a completed and signed-off Non-conforming Material Notice that will allow this condition until the assembly print is updated. In the meantime, all product with this non-conformance needs to be quarantined until you have some documentation that allows you to ship the non-conforming product. Industry standards cannot address every exemption that may occur. Therefore notes on all of the assembly prints are required where there are exemptions. This is so the inspector will not assume that because some of the terminations are longer than .098" then it must be OK if they all are. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Jason Lineback Sent: Monday, September 19, 2005 10:58 AM To: [log in to unmask] Subject: [TN] Lead protrusion of wire terminals Greetings We build an assembly that has a wire harness soldered to the board. The end of the wires on the board end have crimped terminals similar to http://www.molex.com/pdm_docs/sd/008700060_sd.pdf The initial lead protrusion once these terminals get soldered in the board is about .150". Provided there is no electrical clearance issues or customer print governing lead protrusion, what would govern the lead protrusion? Would the IPC-A-610 regulations for lead protrusion apply? In this case it would mean trimming the terminals down to .098". I have researched this both on the net and in IPC/WHMA-A-620, but I have yet to find anything regarding the soldering and / or clipping of these terminals. Any help would be much appreciated. Thanks Jason Lineback --------------------------------------------------- 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 -----------------------------------------------------