Sn95Sb5 solder powder

Sn95Sb5 solder powder is a lead-free Tin-antimony alloy with 95 % Tin and 5 % Antimony. The increased antimony content ensures Higher strength, Increased hardness and improved resistance to Temperature cycles. With a melting range of approx. 232-240 °C, Sn95Sb5 is suitable for SMT, reflow and special high-temperature applications.

Properties and advantages

• Antimony reinforcement (5 %): Significantly improved mechanical stability and temperature resistance.
• Stable melting range: Approx. 232-240 °C for process-safe applications.
• Long service life: Solder joints with improved cycle resistance compared to pure Sn solders.
• Lead-free & RoHS compliant: Sustainable alternative to lead-containing alloys.
• Corrosion resistant: Antimony improves resistance to material fatigue.

Areas of application

High temperature & high load applications

Sn95Sb5 is predestined for Assemblies subject to high thermal and mechanical loadswhere pure tin solders reach their limits. The main areas of application are Automotive industry and Electrical engineering.

SMT and reflow soldering

In SMT and reflow processes Sn95Sb5 ensures reliable, mechanically stable solder joints that can also be Temperature cycles withstand.

Hard & soft soldering

In the area Hard & soft soldering Sn95Sb5 is used when lead-free solders with increased strength are required.

Special applications

Thanks to its high stability, the alloy is also used in Industrial areas with vibration, shock loads and high temperatures utilised.

Technical properties

• Composition: Sn 95 %, Sb 5 %
• Melting range: approx. 232-240 °C
• Grain size: on request (standard: T3/T4)
• Particle morphology: Spherical for uniform solder pastes
• Purity: High quality, controlled oxidation

Sustainability & regulation

Sn95Sb5 is lead-free and fulfils the RoHS specifications. The antimony reinforcement makes it a durable and sustainable alternative to leaded solders.

Conclusion

Sn95Sb5 solder powder is the robust choice for demanding applications with high thermal and mechanical stress. With 5 % antimony, lead-free composition and stable melting properties, it offers reliable solder joints for automotive, electrical engineering and special industrial applications. Further fields of application can be found in the Automotive industry and in the Hard & soft soldering.