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SP 350 SIA® Soldering Paste

Crème à braser sans plomb 350

The SP 350 soldering paste is designed to leverage the unique properties of the SIA® alloy, particularly to limit solder ball formation during reflow. This paste enables the formation of a solder joint at lower temperatures than SnAg, SnCu, and SnAgCu alloys while maintaining good mechanical properties. Its ROL0 classification according to J-STD 004 standards also makes it a versatile solution for various applications.

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SP 350 SIA® Soldering Paste

Benefits

  • Reduced Melting Temperature: Similar to Sn/Pb, meets electronic component specifications and enhances long-term reliability.
  • High Performance: Provides high activity levels with minimal, clear, non-corrosive residues.
  • Adaptability: Suitable for screen printing and “fine pitch” (400µm) as well as “ultra-fine pitch” (<300µm) applications.
  • Increased Reliability: Improved mechanical shock and elongation resistance compared to SAC305 and SnCu alloys.
  • Enhanced Productivity: Reduced energy consumption by 30% during use, reduced dross, and easier repair.
  • Environmentally Friendly: Recyclable, non-toxic alloy.

Conformance and Successful Testing

  • ROL0 Classification according to J-STD-004
  • Chlorine-free
  • REACH Compliant
  • Passed Compliance Tests: Copper Mirror, Silver Chromate, Surface Insulation Resistance (SIR), Electromigration Resistance, Solder Ball Test, Wetting Test, Cold/Hot Slump.
  • Reliability Testing Success: Shock resistance (twice as high as SAC 305), peel strength (40% better than SAC 305), Intermetallic Compound (IMC) analysis.

Technical Specifications

  • Available Alloy: SIA® NA
  • Melting Point: 139-195°C (DSC measurement)
  • Viscosity: 160 Pas (Malcom 10 rpm)
  • Alloy Density: 7.9
  • Packaging: 250g, 500g jars; 500g, 1000g cartridges; 800g Proflow®; others upon request.
  • Storage: 5 to 10°C for up to 12 months in original sealed packaging.

Recommended Applications

  • Electronics Industry
  • Screen Printing
  • “Fine pitch” and “ultra-fine pitch” applications

Choosing SP 350 SIA® means choosing:

  • A reliable, high-performance soldering solution.
  • A product compliant with international standards.
  • An environmentally friendly alloy.

Contact MBO for more information on the SP 350 SIA® Soldering Paste.

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    Izabela Krawczyk

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