SN100C® Solder Alloy
The Premium and Exclusive Solder Bar
SN100C is a premium lead-free solder alloy specifically engineered for high-performance wave and selective soldering applications. As a silver-free alloy, it delivers exceptional solderability and smooth wetting, resulting in bright, reliable solder joints that mimic the appearance of traditional leaded solder. This cost-effective formulation significantly reduces copper erosion and dross formation, ensuring high-quality results without the premium price of silver-bearing alloys. These characteristics make it the industry-leading choice for manufacturers seeking a high-performance SN100C solder bar.
Key Features & Benefits for PCB Assembly
- Fully RoHS Compliant: A lead-free solution meeting all environmental and industrial standards.
- Superior Solderability: Smooth wetting properties for clean, reliable joints.
- Silver-Free Formulation: Reduces material costs while maintaining joint integrity.
- Enhanced Reliability: Minimised copper erosion for long-term joint stability.
- Process Versatility: Fully compatible with both wave and selective soldering machines.
- Industry Standard: Ideal for high-volume electronics manufacturing and precision PCB assembly.
Technical Composition & Specifications of SN100C Solder
The SN100C alloy is a stabilised Tin-Copper-Nickel-Germanium (Sn-Cu-Ni-Ge) eutectic formulation. The addition of Nickel and Germanium optimises fluid flow and mechanical strength while reducing oxidation.
- Melting Point: Eutectic at approximately 227°C – 230°C.
- Joint Appearance: Smooth, bright fillets (unlike the grainy finish of SAC305).
- Operating Stability: Highly reliable for modern, high-density electronics assembly.
Industrial Applications
SN100C solder bars thrive in demanding commercial and industrial environments, powering critical systems in automotive electronics, telecommunications, consumer goods, and industrial controls. The alloy provides a safer workplace with low smoke and minimal fumes, while its excellent thermal fatigue resistance ensures durability in extreme operating conditions.
UK Exclusive: Licensed SN100C Manufacturer
DKL Metals Ltd is the only licensed manufacturer of SN100C solder bar in the UK. While the original patent has expired, we maintain the exclusive rights to the SN100C brand name and the official manufacturing license granted by Nihon Superior Co. Ltd of Japan.
Our partnership, established in 2002, guarantees that every bar produced in our UK facility adheres to the original proprietary formulation and meets rigorous quality benchmarks. By choosing DKL Metals, you are sourcing authentic SN100C backed by decades of metallurgical expertise and quality management systems certified to BS EN ISO 9001:2015.
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