Not worried about creep corrosion. Only worried about exposed pressfit
connector holes where the compliant pin will scrape the surface of the
hole wall. The compliant pin connection is gas tight, so not worried
about that, just the scraped portion left exposed. Not worried about the
portion of the hole wall that is undisturbed, as the co-deposit will be
left that prevents or resists tarnishing. The assembly will be conformal
coated, including the holes.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Monday, January 11, 2010 3:21 PM
To: [log in to unmask]
Subject: Re: [TN] Using Pressfit connectors on an Immersion Silver PWB
How about creep corrosion? Some environments are harsh. A simple
rubber band can attack the finish. sulfur
Vic,
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Monday, January 11, 2010 3:11 PM
To: [log in to unmask]
Subject: [TN] Using Pressfit connectors on an Immersion Silver PWB
Has anyone experienced any issues with using pressfit connectors on a
circuit board that has Immersion silver finish? Do I need to worry about
any tarnishing inside the pressfit connector holes? Since there will be
no solder, the holes will remain open, and thus I was wondering if there
have been any issues with this.
I am considering using immersion silver as a finish for a high
reliability design, and I have never had issues using it with thousands
of medical and military and other applications, including
telecommunication blades where pressfit connectors were used. However,
this is a military application, and I want to know if there are any
potential issues before I commit to using it for this application.
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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 15.0
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 15.0
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
-----------------------------------------------------
|
