Hi Ken:
                Several questions have to be answered:

        Is the wire up in the air?
        Is it going to be exposed to vibrations?
        Is it closed to the board and staked?
        Tinned wire is stiff and brittle. If wire is expensive and the first two questions are answered negative and the last positive I would use the wire. ( in the final application )
        Regards,
        Ramon
	

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Bloomquist, Ken
Sent: Monday, June 06, 2005 5:15 PM
To: [log in to unmask]
Subject: [TN] Solder Wicking


We need a little help interpreting IPC-A-610 and thought this austere
group would be the place to go.

We have some wires that were tinned WAY up under the insulation. While
this is not a desirable situation we want to know if they are usable.

IPC-A-610 says "Acceptable: Solder wicks up wire provided the solder
does not extend to a portion of the wire that is required to remain
flexible."

In our application the wire will be bent once during assembly and then
the unit buttoned up and no more flexing will happen.

Does the statement "to remain flexible" mean in the final application or
during assembly?

Thanks in advance for all your wisdom!

KennyB    

---------------------------------------------------
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
-----------------------------------------------------