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SAC (Sn-Ag-Cu) solder is a high-performance lead-free solder alloy widely used in electronics manufacturing due to its excellent mechanical strength, thermal stability, and environmental safety. It consists primarily of tin (Sn), silver (Ag), and copper (Cu), offering a reliable solution for a variety of applications. SAC solder is available in three main forms: wire solder, paste solder, and bar solder, each suited for specific processes and applications.
Description:
SAC wire solder is a cylindrical wire form of the Sn-Ag-Cu alloy, ideal for manual soldering and automated soldering applications. It provides consistent wetting properties and is commonly used in rework and repair tasks for electronic components, PCBs, and fine-pitch components. The wire is available in various diameters to accommodate different soldering needs, ranging from delicate electronic work to larger, more robust applications.
Key Features:
Alloy Composition: SAC305 (96.5% Sn, 3% Ag, 0.5% Cu), SAC0307 (99% Sn, 0.3% Ag, 0.7% Cu), SAC07 (99.3% Sn, 0.7% Cu).
Melting Point: Approximately 217-220°C, suitable for both hand and machine soldering.
Flux Core: Available with various core types (solid core or rosin flux core) for optimal cleaning and residue-free solder joints.
Applications: Ideal for general-purpose electronics, PCB assembly, and Through-Hole Technology (THT) work.
Description:
SAC paste solder is a blend of powdered SAC alloy and flux, formulated for precision in automated soldering processes like screen printing and stencil printing. The paste form allows for precise application on surface-mount components, making it essential in high-volume PCB assembly lines. The smooth paste consistency ensures uniform distribution and reliable solder joints.
Key Features:
Alloy Composition: Alloy Composition: SAC305 (96.5% Sn, 3% Ag, 0.5% Cu), SAC0307 (99% Sn, 0.3% Ag, 0.7% Cu), SAC07 (99.3% Sn, 0.7% Cu).
Melting Point: 217-220°C, compatible with lead-free reflow profiles.
Flux Type: Options include no-clean and water-soluble fluxes for different post-solder cleaning requirements.
Viscosity Control: Excellent printability and consistent viscosity to prevent slumping and ensure precise application.
Applications: Perfect for automated SMT assembly, reflow soldering, and fine-pitch component attachment.
Description:
SAC bar solder is supplied in solid bar form, designed for use in wave soldering and selective soldering systems. The bar form ensures a steady supply of molten solder for dip and wave soldering applications, making it suitable for large-scale electronics production. It provides strong and reliable solder joints with good thermal fatigue resistance.
Key Features:
Alloy Composition: Alloy Composition: SAC305 (96.5% Sn, 3% Ag, 0.5% Cu), SAC0307 (99% Sn, 0.3% Ag, 0.7% Cu), SAC07 (99.3% Sn, 0.7% Cu).
Melting Point: 217-220°C, suitable for continuous use in wave soldering systems.
Oxidation Resistance: Low dross formation for minimal waste and extended pot life.
Applications: Ideal for wave soldering, selective soldering, and large-scale PCB assembly in manufacturing lines.
Lead-Free and Environmentally Friendly: SAC solder complies with RoHS and other environmental regulations, ensuring a safer working environment and reduced ecological impact.
Superior Mechanical Strength: The inclusion of silver and copper enhances the alloy's tensile strength, providing durable and robust solder joints.
Excellent Wetting Properties: Ensures smooth and consistent flow during soldering, leading to minimal bridging and voiding.
Reliable Thermal Performance: SAC solder maintains its integrity under thermal cycling conditions, making it ideal for high-reliability electronics applications.
SAC solder in its wire, paste, and bar forms is used across various industries, including consumer electronics, automotive electronics, telecommunications, medical devices, and aerospace. Its versatility and reliability make it the preferred choice for modern lead-free soldering needs.
By choosing SAC solder, no matter it's SAC wire solder, SAC paste solder or SAC bar solder, manufacturers benefit from a high-quality, environmentally responsible solution that meets the demands of today's advanced electronic assemblies. We are a manufacturer of SAC solder based in China.
Contact information:
Email: xfsolder@gmail.com or xfsolder@163.com
WhatsApp/Wechat: 008613450770997
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