[volt-nuts] Thermal EMF of common solder

[David]

There was a discussion on EEVBlog about low EMF solders which said
Keithley recommended Sn96Ag4 but I was never able to confirm it.

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

http://www.eevblog.com/forum/projects/low-thermal-emf-solder/msg906573/#msg906573

"just looked for low EMF solder and as stated in other threads
Keithley suggests for 2182 Sn96/Ag4"

On Sun, 26 Jun 2016 16:12:38 +0200, you wrote:

>Hello All.
>
>I measured the thermal EMF of two common solder, the lead free
>Sn96.5/Ag3/Cu0.5 and the old Sn60/Pb40.
>I have ordered a spool of Sn96/Ag4 (the recommended low-thermal-EMF replacement
>for cadmium based one) and I will post the result for this too.
>I could probably find also Sn97/Ag3 and Sn97/Cu3 if it's reasonable to check
>them; I accept suggestion on what else to try between the RoHS complaint ones.
>
>Copper - Sn96.5/Ag3/Cu0.5 -> 3.4uV^C
>Copper - Sn60/Pb40 -> 3.3uV^C
>
>Best regards,
> Andrea Baldoni