DKL Metals are the UK and Ireland licensed manufacturer for this unique stabilised tin-copper-nickel+ germanium eutectic lead free alloy system. SN100C has been in commercial production of printed circuit boards for over 7 years and SN100CL in hot air levelling for over 3 years throughout the world and is recognised as amongst the most successful, technically proven lead free solders in use today.

In mass wave-soldering applications SN100C exhibits fluidity and wetting properties comparable with that of tin/lead solder it is designed to replace. Wave-soldering performance easily matches that of the more expensive tin-copper-silver alloys available and with lower copper leaching rates and less agressivity to stainless steel it easily outperforms these alternative systems on both cost of ownership and overall performance.

SN100C Lead Free Solder: For use in wave soldering, selective soldering etc.

SN100CL Lead Free Solder: For use in HASL

SN100C3 Lead Free Solder: For use in lead free tinning at elevated temperatures

When selecting a lead free alloy replacement there are many factors which should influence your final decision. We have prepared a short table of points which we believe are important in arriving at a balanced informed decision. Why don't you compare your alloy choice and see how it stacks up against SN100C?

Having chosen your lead free alloy system it is important to ensure these alloys are not mixed with other lead-free solders nor tin/lead. To assist in easy identification all DKL branded lead free alloys are engraved, "lead free", stamped with grade and unique batch number and packaged in either green or green and white cartons readily identified with RoHS compliant lead free artwork. Each bar can be individually labelled at additional cost using our "Identibar" labelling system where required.

Further technical information is contained in the following data sheets. We are continually updating reliability data, user experience data etc. which may not yet have been posted to this web page so please feel free to contact us if you can't find the information you need.


SN100C (SnCuNi+Ge): Latest data on Fluidity, Shrinkage (Hot Tears) and Wettability (4 page booklet). more info>>
Bridge free wave soldering 0.5mm Pitch 100 Pins QFP with SN100C. more info>>
SN100C Global User Map. more info>>
Lead free soldering with outstanding properties (4 page booklet). more info>>
Nihon Superior technical data in English/Japanese (8 page booklet). more info>>
Confirmation of Nihon Superior's USA and Japanese Patent more info>>
Licensee certificate for SN100C more info>>
The effect of Germanium additions on SN100C more info>>

Wave soldered with SN100C

Wave soldered with Sn63Pb