Lead-free solder alloys have been around for as long ... These other alloys are types with higher silver content, such as SAC387 (3.8% Ag), and SAC405 (4% Ag). These higher silver alloys are ...

While these two particular solders have the same flux cores, I don’t think you can make the argument that the flux fumes are the same, which is of course what counts. Lead-free fluxes typically ...