Electronics Forum | Thu May 25 10:55:21 EDT 2006 | Chunks
Loctite makes a product called MP218 that works well with mixed alloys.
Electronics Forum | Mon Nov 13 07:58:54 EST 2006 | realchunks
It depends on your paste. Use the highest temps your existing paste can go too. Henkle Loctite makes a solder paste just for this application called MP218. There probably are others but they are available.
Electronics Forum | Wed Apr 14 20:24:48 EDT 2004 | Ken
What do you mean the solder must "survive" 260C? What is your target temperature? Is it dictated by a component, the substrate or the solder alloy? Do you require a eutectic alloy? If not, the selection of alloys grows. (these are from memory...n
Electronics Forum | Tue Dec 10 19:30:49 EST 2002 | Vijay
Hi Dave, The peak temp on the leads is 216-218 Deg C and duration above MP (179 degC) is 55-60 sec. Alloy(solder paste) used 62 Sn,36 Pb 2Ag (Alpha WS 609 Ty 3 Water eash) This is a SMT connector wth Gulwing leads Gold plating on the PCB is 2-5 micr
Electronics Forum | Tue Apr 13 22:48:11 EDT 2004 | Ken
I assumed the balls were tin/silver 221C or tin/silver/copper 218C liquiduous....but, this is obviously not the case. It looks like you balls are almost pure tin (mp=238C) You are correct. This is exactly the same as using 10/90 high temp balls o
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