Kaye

It's a matter of cost. SAC alloys can be well used in wave soldering at
almost the same wave temperature as SnPb but ist more expensive than
SnPb. SnCu(Ni) is cheaper than SAC with the drawback of higher
temperature plus having another alloy in the wave joints than in the
reflow joints.

Best regards

Guenter



EMPA
Swiss Federal Laboratories  for Materials Testing and Research
Centre for Reliability
Guenter Grossmann,  Senior Engineer

8600 Duebendorf
Switzerland

Phone: xx41 1 823 4279
Fax :     xx41 1 823 4054
mail:     [log in to unmask]

>>> [log in to unmask] 10.05.2005 19:19:59 >>>
Technet,

Can anyone share what the differences are between
Tin-Silver-Copper (SAC) solder and the Tin-Copper-Nickle solder
(or ultimately, the solder joints) for use in wave solder machines?
Why would someone want to use one over the other?

Thanks,

Kaye














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