Indium-Lead-Silver Wire is good for soldering to gold because it minimizes gold leaching. It also has good thermal fatigue properties.
Alloy: 80In 15Pb 5Ag
Diameter: .030″
Quantity: 3 FT Spool
Liquidus Melting Temperature: 154°C
Solidus Melting Temperature: 149°C
Pb-Free: No