Electronics Forum | Mon May 12 04:26:00 EDT 2014 | gazelle
Hello - I am looking for a source to supply low thermal EMF solder - can anyone provide pointers ? In the past a cadmium - lead alloy was used for this, but these are banned (RoHs) ... - the aim is to minimize thermo-couples on a very sensitive 4 lay
Electronics Forum | Tue May 13 17:53:54 EDT 2014 | anvil1021
Hello Michel...this might be a bit of a battle finding the low thermal EMF material that you are looking for. The first one that comes to my mind is Bismuth Selenium Telluride, with either a nickel or cobalt doping agent. Silver went away from this
Electronics Forum | Mon May 12 15:08:53 EDT 2014 | davef
I've never used SAC405. Not for nothing ... Other low temperature solder alloys that you should consider are: * Sn42/Bi58 [138*C]: Alloy for low temperature applications. Attention should be paid to potential embrittlement issues and poor thermal fa
Electronics Forum | Tue May 13 08:59:13 EDT 2014 | gazelle
Hello davef - could it be you are confusing low thermal emf (Seebeck coefficient) with low temperature solder ? I am looking after solder wire and paste with low Seebeck coefficient - cadmium based alloy was OK but banned in europe due to RoHs direct
Electronics Forum | Tue May 13 08:51:21 EDT 2014 | gazelle
What is the product for? If you share more > information maybe there is another way of dealing > with the issue, like removal of the joints by a > different circuit design. > > sarason Hello - it is a highly stable reference source - exactly 10
Electronics Forum | Tue May 13 18:32:52 EDT 2014 | gazelle
Hello Anvil - Thank you for the info ! I will contact Marlow ... Have a nice day ! Michel
Electronics Forum | Tue May 13 07:47:06 EDT 2014 | sarason
What is the product for? If you share more information maybe there is another way of dealing with the issue, like removal of the joints by a different circuit design. sarason
Electronics Forum | Thu Jun 18 10:57:28 EDT 1998 | Mike Moninger
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Electronics Forum | Thu Sep 23 08:47:25 EDT 2021 | majdi4
1)Though in many cases the difference between SAC305 and SAC405 was small,and not always statistically significant, it was observed that SAC405 generally outperformed SAC305 joints. Under 0°C to 100°C thermal cycling,no statistically significant
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