I echo David's "lowest bidder" comment. Some years ago on another planet, we bought male and female connectors to the same BS spec for a job. Each type was bought by a different purchasing officer - one older and more experienced, the other younger and more keen to be seen to be getting the best price for things. From the experienced purchaser, who asked what the real requirements were for the job, bought in "Rolls Royce" Hypertac connectors with round, gold plated contacts, while the less experienced fellow bought in cheapo Souriau connectors with square, "pressed tin" contacts of very dubious reliability. Both met the BS spec, yet the performance of the two when mated was non-existant - virtually no inter-contact area, wide tolerences on the Souriau's and disimmilar metals were the obvious problems. We had to scrap all the Souriau's and buy more Hypertac's instead. So be careful when simply buying to spec. In the eyes of a spec, all parts are equal, but some prove to be more equal than others! Peter "Crepeau, Phil" <[log in to unmask]> 19/09/2002 01:09 AM Sent by: TechNet <[log in to unmask]> Please respond to "TechNet E-Mail Forum."; Please respond to "Crepeau, Phil" To: [log in to unmask] cc: (bcc: DUNCAN Peter/Asst Prin Engr/ST Aero/ST Group) Subject: Re: [TN] Contact Plated Finish i would like to say 'amen' to this. unless you think living on the edge is some kind of virtue. phil -----Original Message----- From: David Douthit [mailto:[log in to unmask]] Sent: Tuesday, September 17, 2002 5:25 PM To: [log in to unmask] Subject: Re: [TN] Contact Plated Finish Victor, Dissimular metals used for contacts is very seldom a good idea. The "lowest bidder" concept, in this case, could result in catastrophic failures. Gold to gold is, particuarly for power contacts, is by far and away the best match! David A. Douthit Manager LoCan LLC Victor Hernandez wrote: > Fellow TechNetters, > > Does anyone known if this combination of plated surfaces will create a > problem. > Male Pin Female pin > 1). Contact pin: base material/Nickel/Tin Contact Pin: base > material/silver > > application on a power connector. > > Victor, > > --------------------------------------------------------------------------------- > 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 > --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- 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 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- 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 --------------------------------------------------------------------------------- [This e-mail is confidential and may also be privileged. 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