Electronics Forum | Sat Jun 04 01:39:39 EDT 2005 | adlsmt
It would appear that pure tin is backward compatible with leaded processes. This makes it a great finish, as if you migrate all your parts over time there is no issue mixing them. I am not aware of any finish that eliminates the possibility of tin wh
Electronics Forum | Wed Jul 02 08:30:32 EDT 2008 | interflux_electronics
Why not follow SAC305? you would do so for any other component finish wouldn't you? A component finish of pure Sn would also not call for a pure Sn profile, would it?
Electronics Forum | Mon Jul 14 11:35:09 EDT 2008 | stepheniii
NASA won't allow a pure tin finish in space. Any part with a pure tin finish must be recoated.
Electronics Forum | Sat Jun 04 21:02:48 EDT 2005 | adlsmt
Sorry Dave, I meant lead free finishes.
Electronics Forum | Mon Mar 01 15:28:30 EST 2010 | mikesewell
Pure tin finish? Tin whiskers?
Electronics Forum | Fri Jun 03 16:40:48 EDT 2005 | Andrea
I have a customer who has put a restriction against pure tin finish components. We have gotten our BOMs compliant with all but 5 parts. Fairchild p/n FDD6512A, FQD12N20C, IRLM120A Bournes 3214G-1-501E Sprague 10TS-D10 I am looking for a standard pr
Electronics Forum | Thu Oct 31 17:34:37 EDT 2013 | hegemon
Keep in mind that you may need to assure that there are no pure tin finishes remaining on your parts. A general idea is that parts with pure tin (RoHs) finish will need to be plated with tin-lead solder to avoid the possibility of tin whiskers formi
Electronics Forum | Tue Dec 02 08:51:31 EST 2003 | Daniel Werkhoven
Dear Frank, could it be that your component legs are coated with a leadfree finish? This can have an inpact on soldering when your temp.peak in only 220�C and the melting point of pure Tin is 237�C. Best regards, Daniel
Electronics Forum | Mon Aug 01 20:02:20 EDT 2005 | Joseph
We use SAC305 and top side particular joint temp. is 110 deg C, and the terminal finish for that particular lead is pure tin. It look like hot tearing at the primary side of PTH.
Electronics Forum | Fri Aug 29 10:23:30 EDT 2008 | vladig
Everyone has been playing a guess game so far :-) but we don't even know what the lead finish is:-) Even old (Sn-Pb finish) days, the ammount of Pb in the plating would be on a single digit level (just to mitigate Sn-whiskers growth), meaning that th
