Sn-Cu Alloys: Cost-Effective Alternative to SAC
Cost-effective lead-free soldering solutions without quality compromises
Sn-Cu (Tin-Copper) alloys represent the ideal economic alternative to SAC alloys for general applications. With a melting point of 227°C and excellent mechanical properties, they offer an excellent quality-price ratio for lead-free soldering in industrial and electronic applications.
Why Choose Sn-Cu Alloys
Economic advantages and performance for industrial applications
Sn-Cu Alloy Technical Specifications
Technical characteristics and performance for industrial applications
| Composition | Sn (%) | Cu (%) | Melting Point |
|---|---|---|---|
| Sn99.3/Cu0.7 | 99.3 | 0.7 | 227°C |
| Sn99.0/Cu1.0 | 99.0 | 1.0 | 228°C |
| Sn98.5/Cu1.5 | 98.5 | 1.5 | 229°C |
Sn-Cu Application Sectors
Ideal applications for tin-copper alloys
General Electronics
Soldering of standard electronic components, PCBs, connectors. Ideal for high-volume production with limited budget.
General Industry
Non-critical industrial applications, wiring, electrical components. Excellent quality-price ratio.
LED Lighting
LED module soldering, drivers, lighting components. Adequate thermal resistance for standard applications.
Appliances
Electrical components for appliances, controls, sensors. Economic solution for mass production.
Sn-Cu vs SAC: Economic Comparison
Cost and performance analysis for optimal choice
| Characteristic | Sn-Cu | SAC 305 | Sn-Cu Advantage |
|---|---|---|---|
| Material Cost | Low | High | 40-60% savings |
| Melting Point | 227°C | 217°C | Stable, predictable |
| Mechanical Resistance | Good | Excellent | Adequate for general use |
| Electrical Conductivity | Good | Excellent | Sufficient for standard applications |
| Thermal Resistance | Good | Excellent | Adequate for normal temperatures |
Recommendation: Sn-Cu for general applications and high-volume production, SAC 305 for critical applications and high reliability. Sn-Cu economic savings can be significant on large volumes.
Frequently Asked Questions about Sn-Cu Alloys
Answers to the most common questions about tin-copper alloys
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