62S SMQ Surface Mount Quality Solder
The 62S SMQ is a premium, ultra-high purity solder bar specifically engineered for modern electronic assembly. Manufactured from high-grade refined virgin metals, this tin-silver-lead delivers exceptional performance and batch consistency in all assembly situations, while ensuring high yields and low production costs.
Thanks to a special anti-drossing treatment during manufacture, E-Qual solders show a marked reduction in dross formation compared to untreated materials. This results in cleaner, well-formed joints, a reduction in icicling and bridging, and ultimately, reduced product usage and machine maintenance.
The consistent quality control procedures ensure every bar meets or exceeds all internationally recognised standards. We also offer a free regular solder analysis service for customers to check bath contamination levels and ensure quality is maintained within strict operating parameters.
Key Features and Benefits of 62S SMQ Solder
- Consistent, clean, well-formed joints for reliable electronic assemblies.
- High yields and low production costs through efficient material usage.
- Reduction in dross formation, icicling, and bridging due to a special anti-drossing treatment.
- Optimum performance and batch consistency in all applications.
- Meets or exceeds all internationally recognised standards for purity and performance.
Typical Applications and Forms
DKL Metals offers the 62S SMQ alloy in various forms to suit different assembly applications, all produced to stringent quality standards.
- Surface Mount Technology (SMT) and general electronic assembly using solder baths.
- Autofeed ingots and solder bars for wave soldering machines.
- Solder wire (cored and solid forms) compatible with E-Qual solders and fluxes are available.
Available in:
- 5kg autofeed ingots
- 2kg autofeed ingots
- 1kg bars
- 500g bars
- chunks
- 500g and 3kg wire reels
Chemical Composition (Typical Analysis)
| Element | Typical % (E-Qual SMQ) |
|---|---|
| Tin (Sn) | 62.0 |
| Lead (Pb) | Balance |
| Silver (Ag) | 2.0 |
| Antimony (Sb) | 0.02 Max |
| Copper (Cu) | 0.0005 Max |
| Zinc (Zn) | 0.0002 Max |
| Iron (Fe) | 0.001 Max |
| Arsenic (As) | 0.002 Max |
| Nickel (Ni) | 0.001 Max |
| Bismuth (Bi) | 0.01 Max |
| Cadmium (Cd) | 0.0002 Max |
| Gold (Au) | 0.001 Max |
| Aluminium (Al) | 0.0001 Max |
Composition data based on typical analysis provided in the datasheet.
The 62S SMQ tin-silver solder alloy is produced to stringent quality standards to ensure consistent physical and chemical properties in every batch. It is a trusted choice across the electronic assembly market for high purity and performance.
The consistent quality and performance data underscore why engineers rely on the 62S SMQ Solder for critical electronic manufacturing.
Some Links!
Gov.uk – RoHS compliance and guidance
DKL – Industries that still rely on Leaded Solder

