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Soldering contaminated leads?

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#62854

Soldering contaminated leads? | 5 October, 2010

I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable? Are there some preperation steps (cleaning, tinning) I can do to known contaminated parts to make them solderable? I am using RMA flux. Any help would be appreciated.

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#62855

Soldering contaminated leads? | 5 October, 2010

I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable? Are there some preperation steps (cleaning, tinning) I can do to known contaminated parts to make them solderable? I am using RMA flux. Any help would be appreciated.

reply »

#62856

Soldering contaminated leads? | 5 October, 2010

I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable? Are there some preperation steps (cleaning, tinning) I can do to known contaminated parts to make them solderable? I am using RMA flux. Any help would be appreciated.

reply »

#62889

Soldering contaminated leads? | 8 October, 2010

Have you tried switching to a more aggressive flux, like a water soluble, or is that not a possibility?

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#62902

Soldering contaminated leads? | 12 October, 2010

Baking of the component helps it depends on the type of contamination and how much contamination. It sounds like your purchasing is buying from brokers.

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