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Lead-Free Solder Composition |
Melting Point Range |
Comments |
48 Sn/52 In |
118 C eutectic |
Low melting point, expensive, low strength |
42 Sn/58 Bi |
138 C eutectic |
Established, availability concern of Bi |
91 Sn/9 Zn |
199 C eutectic |
High drossing, corrosion potential |
93.5 Sn/3 Sb/2 Bi/l .5 Cu |
218 C eutectic |
High strength, excellent thermal fatigue |
95.5 Sn/3.5 Ag/1 Zn |
218-221°C |
High strength, good thermal fatigue |
96.5 Sn/3.5 Ag |
221°C eutectic |
High strength and high melting point |
97 Sn/2 Cu/0.8 Sb/O.2 Ag |
226-228°C |
High melting point |
99.3 Sn/O.7 Cu |
227°C |
High strength and high melting point |
95 Sn/S Sb |
232 - 240 rC |
Good shear strength and thermol fatigue |
65 Sn/25 Ag/i 0 Sb |
233-C |
Motorola patent, high strength |
Our solder and tin anodes are processed for high density and fine grain structure, and are the highest quality anodes available to the printed circuit board industry. These solders are designed and engineered to meet Indian, British, German, Japanese and American specifications. A unique processing method used in manufacturing these anodes eliminates oxide and non-metallic inclusions, and provides uniform plating without sludging and flaking.
These solders can be used for general soldering applications as well as for critical microelectronic assemblies. They can be used in all types of automatic soldering machines, dip soldering equipment, tinning baths and all manual soldering processes. The anodes can be used to plate printed circuit board to extend the solderable shelf life and to use as an etch resist. They are also applicable for plating copper wire, bus bar as well as for plating terminals, eyelets and other electronic components. These solders and anodes are processed to assure fine grain structure and even dissolution during soldering or plating.