Engineered for superior electrical performance, this lead-free silver-containing solder paste (Sn96.5Ag3.0Cu0.5) offers a strong, reliable bond with a 217°C melting point. Its SAC305 alloy formulation ensures excellent thermal fatigue resistance and robust conductivity for demanding electronic assemblies. Features and Benefits
- Sn96.5Ag3.0Cu0.5 (SAC305) Alloy - Delivers strong, reliable solder joints with excellent electrical conductivity and thermal performance.
- 217°C Melting Point - Provides a stable working temperature suitable for a wide range of components and PCB types.
- Lead-Free, RoHS Compliant Formulation - Meets modern environmental and safety standards for professional and commercial use.
- Silver-Enhanced Composition - Improves joint strength and fatigue resistance compared to standard tin-copper alloys, ensuring long-term reliability.
- Fine, Consistent Paste Texture - Allows for precise application and excellent printability, reducing waste and improving assembly yield. Applications
- SMT (Surface Mount Technology) Assembly - Ideal for reflow soldering of components like BGAs, QFPs, and chip resistors/capacitors onto PCBs.
- PCB Rework and Repair - Excellent for manual touch-up, component replacement, and bridging connections during diagnostics.
- Prototype and Hobbyist Projects - A reliable choice for building and testing circuits where strong, conductive joints are critical.
- Consumer Electronics Manufacturing - Suitable for assembling devices where lead-free compliance and durable connections are required. Note
For optimal results, store in a cool, dry place and use within the manufacturer's recommended shelf life. Always follow standard soldering safety procedures.
Particle Size: 20-38μm. Alloy Composition: Sn96.5Ag3.0Cu0.5. Copper Content: 0.5 wt%. Lead Content: 0 wt%. Melting Point: 217°C. Silver Content: 3.0 wt%. Tin Content: 96.5 wt%. Certification: RoHS. Particle Size: Type 3 (25-45 µm) or Type 4 (20-38 µm) (inferred for standard SMT). Alloy Composition (Primary): Sn96.5Ag3.0Cu0.5 (Tin 96.5%, Silver 3.0%, Copper 0.5%). Melting Range (Liquidus): ~217-220°C. Recommended Reflow Profile Peak Temperature: 240-250°C. Alloy Type: Lead-free, SAC305 variant. Electrical Conductivity: High (inferred from "Strong Conductive"). Flux Activity Level: ROL0 or ROL1 (inferred for general electronics assembly). Flux Type: Rosin-based, no-clean (inferred standard for electronics). Melting Point (Solidus): 217°C. Metal Loading: 88.0% - 90.0% by weight (typical for solder paste). Recommended Stencil Aperture Wall: Laser-cut, electro-polished. Shear Strength: High (inferred from SAC305 alloy properties). Shelf Life (Unopened, 5°C): 6 months (typical for solder paste). Solder Ball Test: Pass (J-STD-005). Thermal Conductivity: ~60 W/m·K (typical for SAC305 alloy). Viscosity: 800,000 - 1,200,000 centipoise (cPs) @ 10 rpm, 25°C (typical range). Wetting Performance: Excellent (inferred from silver content). Working Life (After Printing): 8-12 hours (typical for no-clean pastes). Q: What is the exact alloy composition and melting point of this solder paste? A: This is a Sn96.5Ag3.0Cu0.5 solder paste, meaning it is composed of 96.5% tin, 3.0% silver, and 0.5% copper. It has a melting point of 217°C, which is standard for this SAC305 alloy.. Q: How durable and strong are the solder joints created with this Sn96.5Ag3.0Cu0.5 paste? A: The SAC305 (Sn96.5Ag3.0Cu0.5) alloy is known for creating strong, reliable, and fatigue-resistant solder joints. The silver content enhances mechanical strength and thermal conductivity, making it suitable for demanding applications.. Q: Is this lead-free silver solder paste compatible with electronics and PCB assembly? A: Yes, this lead-free SAC305 solder paste is specifically formulated for electronics manufacturing and PCB assembly. It is ideal for surface-mount technology (SMT) reflow soldering and other precision electronic work.. Q: Does this product come with any warranty or quality guarantee? A: While specific warranty terms depend on the seller, this solder paste is manufactured to common industry standards for SAC305 alloys. We recommend reviewing the seller's specific policy for details on satisfaction guarantees.. Q: Is this Sn96.5Ag3.0Cu0.5 solder paste a good value for the price? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. It delivers reliable performance for regular use with a proven, industry-standard SAC305 alloy formula..