[volt-nuts] Thermal EMF of common solder

[Andrea Baldoni]

On Sun, Jun 26, 2016 at 11:55:56AM -0500, David wrote:

> I have a spool of something from Kester that may be Sn96Ag4 but it is
> only marked Sn96.

Sn96 could also be the trade name for the Sn96.5/Ag3.5.

Name		Composition

SAC101		Sn98.9 Ag1.0 Cu0.1
SAC105		Sn98.5 Ag1.0 Cu0.5
SAC125		Sn98.3 Ag1.2 Cu0.5
SAC125+Ni	Sn 98.25 Ag 1.2 Cu 0.5 Ni 0.05
SAC266		Sn96.8 Ag2.6 Cu0.6
SAC300		Sn96.95 Ag3.0 Cu0.05
SAC305		Sn96.5 Ag3.0 Cu0.5
SAC307		Sn96.3 Ag3.0 Cu0.7
-		Sn80.8 Sb18 Ni1.2
-		Sn98.9 Ag1.0 Cu0.5
SAC350		Sn96.45 Ag3.5 Cu0.05
SAC387		Sn95.5 Ag3.8 Cu0.7
SAC400		Sn95.95 Ag4.0 Cu0.05
SAC405		Sn95.5 Ag4.0 Cu0.5
Sn96		Sn96.5 Ag3.5

(non lead free:)
Sn63		Sn63 Pb37
Sn62		Sn62 Pb36 Ag2.0
Sn10		Sn10 Pb90

The Sn96/Ag4 seems to be for the food service equipment, refrigeration,
heating, air conditioning, plumbing and not common in electronics.
The Sn10/Pb90 is also known as low EMF but being non RoHS I don't think it's
easy to find it (though not too dangerous to work with).

I don't know if the .5% Ag between the 96.5/3.5 and 96/4 would change much in
the EMF, I'll test it and report, if I find both.

Best regards,
 Andrea Baldoni