I have read the same reports and had to read between the lines. I could
not find an unequivocal recommendation but there were sufficient clues
to deduce that SN100C should not give great cause for concern.
I think if I were selling SAC I could find you data to say that under
some circumstances SAC is better than SN100C and of course if I were
selling SN100C ..........................
In terms of reliability I believe I will be able to answer that question
in a few to 20 years time.

Personally I would not just change alloys without doing trials on boards
that we make to confirm that 'it does what it says on the can' (sorry
that is from a UK advert) and that there are no unexpected problems. I'd
buy more SAC and proceed with caution.

Rex

-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Tempea, Ioan
Sent: 09 August 2006 18:29
To: [log in to unmask]
Subject: [LF] Alloy for lead-free wave soldering

Hi Netters,

I am wondering if the last months shed more light on how the various
alloys perform. I have skimmed the report recommended by Dave Hillman,
available at http://www.acqp2.nasa.gov/LFS.htm but cannot see a clear
recommendation.

My stock of SAC305 solder bar is almost depleted and I have to make a
decision: shall I continue with SAC305, or switch to SN100C or SACX?

Beyond the cosmetics of the joints and the maintainability of the solder
pot, what is your feedback on reliability? Since I am running SAC305
paste, if I use a different alloy at wave, shall I expect more trouble
than having the same SAC305 in both processes?

Thanks,

Ioan

 

------------------------------------------------------------------------
-------Leadfee Mail List provided as a service by IPC using LISTSERV
1.8d To unsubscribe, send a message to [log in to unmask] with following
text in the BODY (NOT the subject field): SIGNOFF Leadfree To
temporarily stop/(start) delivery of Leadree for vacation breaks send:
SET Leadfree NOMAIL/(MAIL) Search previous postings 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
------------------------------------------------------------------------
-------



This communication is confidential and its contents may contain opinions that are not representative of Hansatech. 
http://www.hansatech.co.uk/emaildisclaimer.php

-------------------------------------------------------------------------------Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL)
Search previous postings 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
-------------------------------------------------------------------------------