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In the world of electronics manufacturing and repair, the quality of your soldering materials dictates the reliability and longevity of your work. Introducing our premium Tin Solder 63% – a high-performance alloy designed specifically for professionals and hobbyists who demand precision and durability. This Tin Solder Pb37Sn63 formulation represents the industry standard for eutectic solder, offering a perfect melting point and exceptional flow characteristics.
Our Tin Solder with Rosin Core eliminates the need for external flux application, streamlining your workflow and ensuring clean, oxidation-free joints. Available in multiple convenient coil sizes—100g, 200g, 250g, and 500g—and featuring a versatile Diameter 1.0mm, this product is engineered to meet the rigorous demands of modern electronics assembly.
Whether you are populating a complex motherboard or repairing vintage audio equipment, this Tin Solder for THT Components ensures strong, conductive, and visually perfect connections. Let us delve into the specifics that make this solder wire an indispensable asset for your bench.
The heart of this product lies in its precise metallurgical composition. Tin Solder Pb37Sn63 is a eutectic alloy, meaning it melts and solidifies at a single, sharp temperature point (183°C/361°F) rather than over a range. This property is critical for PCB THT Components, as it minimizes the time components are exposed to high heat, reducing the risk of thermal damage to sensitive semiconductors and substrates.
The Tin Solder 63% ratio is not arbitrary. This specific blend offers superior wetting ability compared to other alloys. The 63% tin content ensures rapid flow into plated through-holes and around component leads, creating a microscopic intermetallic bond that is both mechanically robust and electrically sound. By choosing Tin Solder Sn63, you are selecting the gold standard for through-hole technology.
We guarantee high-purity raw materials in our Tin Solder Pb37Sn63. Impurities in solder can lead to brittle joints, voiding, and poor conductivity. Our alloy is refined to remove contaminants, ensuring consistent performance across every coil of Tin Solder with Rosin Core. The result is bright, shiny joints with minimal oxides, reducing the need for post-soldering cleaning.
Every spool of our Tin Solder with Rosin Core contains a carefully engineered flux channel running through the center. This activated rosin flux performs multiple essential tasks during the soldering process. As the Tin Solder 63% melts, the flux releases to remove existing oxide layers from both the component lead and the copper pad on the PCB.
For Tin Solder for THT Components, having a built-in flux core is a game-changer. It prevents re-oxidation during the heating cycle, ensuring that the molten Tin Solder Pb37Sn63 flows smoothly and wets the surfaces entirely. This leads to a significant reduction in "cold solder joints" and "bridging," especially when working with densely packed boards.
Our Tin Solder with Rosin Core utilizes a non-corrosive, halogen-free flux. This is vital for long-term reliability, as ionic residues can cause electrochemical migration and short circuits. The flux leaves a transparent, insulating residue that is electrically safe and can be left on the board for most applications, or easily removed with standard cleaning solvents if required by your quality standards.

The Diameter 1.0mm is arguably the most versatile gauge for modern electronics work. This thickness is perfectly balanced—it delivers enough solder mass to fill large through-holes and heavy terminal lugs, yet it is fine enough to allow controlled deposition for smaller pads and IC pins. This Tin Solder 63% 1.0mm is the "one-size-fits-most" solution that should be on every technician's bench.
When using Tin Solder with Rosin Core in Diameter 1.0mm, feeding control is intuitive. The wire is stiff enough to be guided precisely, yet soft enough to bend and wrap around leads easily. This diameter ensures that the flux core remains intact during manufacturing, so every centimeter of the Tin Solder Pb37Sn63 wire contains the exact amount of flux needed for a perfect joint.
Specifically for Tin Solder for THT Components, the Diameter 1.0mm is ideal for filling the annular rings of through-hole vias. It provides enough volume to form a strong fillet on the underside of the board without excessive overflow, ensuring a reliable mechanical anchor and excellent thermal conductivity.
We understand that different projects and production volumes require different consumable quantities. That is why we offer this Tin Solder 63% in a range of coil weights to suit your needs.
The Tin Solder 63% 100g spool is the ideal size for field service technicians and maintenance engineers. Its compact size allows for easy storage in a toolbag. For repair stations that occasionally need to rework PCB THT Components, the 100g coil minimizes waste while ensuring you always have fresh, unoxidized solder available.
The Tin Solder 63% 200g option is the most popular choice for general benchwork. It offers a perfect compromise between long-term supply and manageable handling. At 200g, the spool fits well on standard bench-top solder dispensers, providing a steady and tension-free feed of Tin Solder Pb37Sn63 for repetitive soldering operations.
For high-mix, low-volume manufacturing lines, the Tin Solder 63% 250g spool ensures consistency across multiple shifts. This weight is a standard metric in the electronics assembly industry, as it allows for easy tracking of solder usage per batch of Tin Solder for THT Components. The 250g format is a sweet spot for assembly houses building power supplies, automotive electronics, and industrial controls.
When you are dealing with large-scale production, the Tin Solder 63% 500g spool is your most cost-effective solution. By purchasing in bulk, you reduce packaging waste and total unit cost. The 500g coil ensures that robotic soldering machines and wave-solder hand-loading stations never run out of Tin Solder Sn63 mid-panel, drastically reducing downtime.

This Tin Solder for THT Components is engineered specifically for Through-Hole Technology. While it can be used for surface-mount (SMD) drag-soldering, its true prowess is in populating:
Connectors: Heavy-duty D-sub, Molex, and terminal blocks.
Inductors and Transformers: Large thermal mass leads.
Capacitors: Electrolytic capacitors for power supplies.
Switches and Relays: Reliable electromechanical connections.
While the industry shifts toward lead-free alloys, there remains a vast installed base of equipment requiring Tin Solder Pb37Sn63 for repair. Leaded solder is preferred for its lower melting point and superior wetting, making this Tin Solder 63% the only choice for maintaining military, aerospace, and audio-grade equipment.
The Tin Solder with Rosin Core combined with the alloy's superior ductility ensures that PCB THT Components remain securely attached even under extreme thermal cycling. The 63% tin/37% lead ratio resists thermal fatigue better than many lead-free alternatives, preserving the integrity of your board over decades.
Melting Point: 183°C (Eutectic).
Flow Temperature: 215°C–235°C for ideal operation.
Density: High density ensures low porosity joints.
To preserve the reliability of the flux within your Tin Solder with Rosin Core, store coils in a cool, dry environment away from direct sunlight. The Diameter 1.0mm wire is resistant to oxidation, but maintaining a consistent humidity in the workspace prevents flux activation degradation.
For optimal results with Tin Solder 63% 1.0mm, use a soldering iron tip with a temperature range of 330°C to 350°C. The Diameter 1.0mm works effectively with chisel, conical, and bevel tips, allowing heat transfer that rapidly matches the melting point of Tin Solder Pb37Sn63.

Our Tin Solder Sn63 is manufactured under strict ISO 9001 quality controls. Each batch undergoes rigorous testing for:
Solder Sphericity: The Tin Solder 63% must melt into a smooth, perfectly spherical ball without spattering.
Flux Content: The Tin Solder with Rosin Core contains a consistent 2.2% flux weight, verified by analytical testing.
Tensile Strength: Joints formed with our Tin Solder Pb37Sn63 achieve a minimum shear force exceeding industry standards.
Note: While RoHS restricts lead in new consumer electronics, our Tin Solder Pb37Sn63 is fully compliant for military, aerospace, medical, and automotive aftermarket use where leaded solder remains the regulated standard. We provide a detailed Certificate of Conformance with every shipment.
To help you decide which format fits your operations, here is a breakdown:
| Feature | Tin Solder 63% 100g | Tin Solder 63% 200g | Tin Solder 63% 250g | Tin Solder 63% 500g |
|---|---|---|---|---|
| Best For | Repair kits, field work | Lab benchtops, prototyping | Medium production lines | High-volume mass production |
| Spool Diameter | Compact (e.g., 60mm) | Standard (e.g., 80mm) | Standard (e.g., 80mm) | Large (e.g., 100mm+) |
| Handling | Manual feed | Manual/Dispenser | Dispenser recommended | Robotic/Dispenser |
| Cost Efficiency | High per-unit | Medium | Medium-High | High (Best Value) |
| Application | Quick fixes, small batches | General engineering | Batch assembly | Continuous assembly |
Regardless of the coil size, the Tin Solder 63% 1.0mm remains the unifying standard of diameter, ensuring your soldering parameters remain constant across all areas of your workshop.
Clean the PCB: Ensure the PCB THT Components have clean plated holes.
Fit the Component: Insert the lead through the designated hole.
Position the Iron: Place the tip of the iron to heat both the lead and the pad simultaneously (temperature at 330°C).
Touch the Solder: Feed the Tin Solder with Rosin Core into the joint (opposite the iron).
Watch the Flow: Because it is Tin Solder Pb37Sn63, the solder will instantly melt and flow around the lead and through the hole.
Remove the Solder: Withdraw the Tin Solder Sn63 wire, but keep the iron in place for 1-2 seconds to allow the flux to clear and the joint to "set."
Look for a shiny, concave fillet. This confirms the Tin Solder 63% has created a perfect intermetallic bond. The Diameter 1.0mm ensures the volume is sufficient for a robust anchor.
In the competitive landscape of electronic supplies, the Tin Solder Sn63 alloy has built a reputation for unmatched reliability. Users choose our product because:
Repeatability: Every spool of Tin Solder 63% 500g behaves identically to the 100g sample.
Reduced Spattering: Our Tin Solder with Rosin Core prevents the "solder splash" that can cause shorts on PCB THT Components.
Long Shelf Life: Unlike some water-soluble fluxes, our rosin core remains active for years.
Furthermore, the choice of Tin Solder 63% 250g or 200g allows engineers to standardize their inventory across multiple assembly lines, simplifying procurement and reducing the risk of using the wrong solder alloy.
While the Tin Solder Pb37Sn63 contains lead, we emphasize the importance of safety. We recommend using fume extraction to capture flux fumes. The Tin Solder with Rosin Core produces low odor, but clean air is a necessity. Our packaging is recyclable, and we support responsible recycling programs for scrap Tin Solder 63%.
To summarize, our Tin Solder Pb37Sn63 represents the apex of soldering technology for through-hole applications. By choosing our Tin Solder Sn63, you secure the benefits of a eutectic melting point, exceptional wetting, and the convenience of a high-performance rosin core.
Whether you opt for the portable Tin Solder 63% 100g, the balanced 200g and 250g spools, or the bulk Tin Solder 63% 500g format, you are guaranteed a consistent Diameter 1.0mm wire that delivers perfect joints every time.
Stop struggling with inferior alloys and flux-application errors. Elevate your work with our Tin Solder 63% 1.0mm and experience the difference in every component you secure.
Order your coil today and ensure your Tin Solder for THT Components is the best available on the market. With our rigorous quality standards and your skilled hands, the durability of your electronic assemblies is guaranteed.
Contact us:
Email: xfsolder@163.com or xfsolder@gmail.com
WhatsApp/Wechat: +8613450770997
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