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Solder Paste - Tin/Lead

Alpha Metals tin and lead solder pastes are formulated to provide exceptional printing and superior wetting with low voiding.

Alpha Metals tin and lead solder pastes are stocked in Sn63 alloy containing 63% Tin/ 37% Lead. Most Alpha SMT pastes are halide-free for the highest level of cleanliness whether you are cleaning post-soldering residues or utilizing a no-clean process.

Alpha's RMA390 DH3 is the leading mil-spec solder paste for Class III aerospace and high-reliability SMT soldering.

Some formulas of the Alpha Metals tin and lead solder pastes are available in Type 4 powder size for ultra fine-pitch printing. Type 3 Alpha pastes are suitable for printing applications down to 16 mil (0.4 mm) pitch QFP components and 12 mil BGA circles using a 5 mil thick laser cut stencil.

Alpha water-soluble pastes have the longest stencil life available to provide consistent printing for up to 5 hours at temperatures from 20 - 28° C.  Alpha no-clean solder pastes have a stencil life of >8 hours.

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