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LINQALLOY Bi57Sn42Ag1 Low-temperature near-eutectic solder spheres are lead-free Bismuth-Tin alloys that contain 57% Bismuth (Bi), 42% Tin (Sn) and 1% Silver (Ag) and are often written as 57Bi42SnAg1, Sn42Bi57Ag1, or 42Sn57BiAg1. Bi57Sn42Ag1 Solder Spheres are low-temperature, lead-free, near-eutectic solder spheres and are used by companies working with BGA, CSP, LBGA, PBGA and CBGA components who have made the transition to Lead-free (Pb-free) soldering.
The advantage of ordering solder spheres online at CAPLINQ.com is that you can be sure of the quality. The solder spheres you receive are originally manufactured solder spheres packed into jars with inert gas (nitrogen). We do not repack the solder balls we receive, so the jars you will receive have never been opened, thus ensuring the quality of the product you receive. The lid of the jar is also always sealed with a shrink-wrapped plastic wrap ensuring that the solder spheres do not oxidate in the jar.
Furthermore, each jar has a clear label on the lid specifying the solder ball diameter as well as a label on the front identifying the alloy type, the quantity of spheres in the jar, the date of manufacture, and the product lot (or batch) number. This batch number is also tied to a certificate of conformance that is also provided with the solder spheres and ensures the Bi57Sn42Ag1 solder spheres meet the following quality criteria: