SN100CL® HASL Alloy
SN100CL is a premium, silver-free lead-free solder alloy engineered for Hot Air Solder Levelling (HASL) applications. As the UK’s exclusive licensed manufacturer of the Nihon Superior SN100C range since 2002, DKL Metals ensures authentic quality. This eutectic alloy uses a unique micro-alloy combination to replicate the fluid mechanics of traditional tin-lead solder. It provides flat, uniform board finishes across modern and legacy electronics assemblies.
Key Advantages
Optimised HASL Performance
Specially formulated for hot air solder levelling processes. It prevents solder bridging on fine-pitch components.
Micro-Alloy Fluidity
Nickel and germanium additions refine grain structure. This enhances fluid drainage and eliminates icicle formation.
Significant Cost Savings
The completely silver-free composition reduces raw material costs. It achieves this without compromising joint reliability.
Equipment Protection
Minimises copper dissolution and limits dross build-up. This extends overall solder bath life and machinery longevity.
Technical Specifications
| Property | Specification Details |
|---|---|
| Alloy Composition | Sn-0.7Cu-0.05Ni-Ge (Tin-Copper-Nickel-Germanium) |
| Melting Point | 227°C (Eutectic) |
| Application Focus | Hot Air Solder Levelling (HASL) Fine-Pitch Soldering |
| Standards Compliance | IPC J-STD-006 RoHS Compliant |
| Manufacturing Certification | BS EN ISO 9001:2015 Quality Management |
Standard Packing Options & Formats
- 1kg Bars: Shipped in secure 20kg boxes.
- 2kg Bars: Shipped in secure 20kg boxes.
- 3.8kg Feeder Ingots: Delivered stacked on a pallet.
- Chopped Bar: Packaged in industrial 20kg bins.
- Other sizes are available on request.
Manufacturing & Support
Every batch undergoes strict analysis in our onsite laboratory to guarantee chemical compliance. Our engineering team helps optimise machine parameters during your transition to lead-free setups. For comprehensive technical insights, read our SN100C Solder FAQ or review the official Nihon Superior Product Data.
Frequently Asked Questions
Why choose SN100CL over silver-bearing alloys like SAC305? +
SN100CL contains no silver, lowering material costs significantly. It reduces copper erosion and equipment wear compared to SAC305. It also generates far less dross during processing.
Does SN100CL require higher operating temperatures? +
Yes, it has a melting point of 227°C. This requires slightly higher process temperatures than traditional 63/37 tin-lead variants. However, it integrates seamlessly into standard lead-free lines.
How do nickel and germanium improve HASL performance? +
Nickel refines the alloy’s grain structure for uniform, flat surfaces. Germanium acts as an anti-oxidant to minimise dross formation. Together, they deliver excellent drainage and prevent bridging.