Materials
Solders for lead-free manufacturing for Navy Systems
The following alloys were selected for manufacturing hardware in Navy systems. These alloys have proven performance and have been adopted by the general commercial electronics manufacturing community. Adoption by the commercial industry increases the probability that these alloys will be used on sub-assemblies acquired by defense contractors.
Surface Mount Soldering
SAC 305 Alloy
Wave soldering
Sn-Cu-Ni
Hand Soldering, Repair, Rework
SAC 305 Alloy
Printed Wiring Board materials
FR-4 , high Tg and high Td (delamination temperature)
Component Finish Materials
Tin electroplated with less than 3% by weight of lead (Pb) presents excessive tin whisker risk for many high reliability applications and should be avoided.
