R-TECH SAC305 Solder 2% L1 Flux - 1.2mm - 250g Reel

R-TECH 857019 SAC305 Solder 2% L1 Flux is a high purity, lead-free, no clean solder wire. It has a...

Best current price£56.40from Rapid Online - Rapid Electronics Ltd.

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Rapid Online - Rapid Electronics Ltd.R-TECH 857019 SAC305 Solder 2% L1 Flux
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eBayR-TECH SAC305 Solder 2% L1 Flux <0.5% Halide 0.7mm 250g Reel
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Product Information

Full details

The R-TECH 857019 SAC305 Solder 2% L1 Flux is designed for professional electronics technicians and hobbyists who require high-quality, reliable solder joints. Its key benefit is the combination of high-purity lead-free alloy with a fast-flowing, no-clean flux core that speeds up the soldering process and reduces cleanup. A potential consideration is its 1.2mm diameter, which may be too large for very fine-pitch components, requiring users to select appropriate tools for micro-soldering tasks. This solder wire offers excellent joint strength and reliability due to its silver content, and the 'no clean' feature simplifies post-soldering steps.

All features

Model Part Number857019
BrandR-TECH

Extended Product Information

FAQs

What does SAC305 mean?

SAC305 refers to the alloy composition: 3% Silver (Ag), 0.5% Copper (Cu), and the remainder Tin (Sn). This is a common high-reliability lead-free solder alloy.

Is this solder suitable for hobbyist electronics?

Yes, while designed for professional use, its 'no clean' feature and good flow make it suitable for hobbyists who want reliable, high-quality solder joints.

Do I really not need to clean the flux residue?

The 'no clean' formulation means that for most applications, the transparent residues are non-corrosive and do not need removal. However, for critical applications or where visual inspection is paramount, cleaning might still be recommended.

What is the difference between this and leaded solder?

Leaded solder (e.g., 60/40 Tin/Lead) has a lower melting point and is generally easier to work with for beginners. Lead-free solder like SAC305 requires higher temperatures and can be slightly more challenging to achieve good joints without proper technique.

What is the halide content?

Halides are activators in the flux. A low halide content (<0.5% in this case) ensures that the flux is less aggressive and the residues are more stable and less likely to cause corrosion over time.

Can I use this with a standard leaded solder iron?

You can use it with a standard soldering iron, but it must be rated for lead-free temperatures (typically higher than leaded solder irons). Ensure your iron has good temperature control and can reach and maintain temperatures around 350°C.

How much solder is on the reel?

This reel contains 250 grams of solder wire.

Troubleshooting

Solder not flowing well or poor wetting

Increase soldering iron temperature slightly, ensure iron tip is clean and tinned, and verify the workpiece is properly heated. Ensure the solder wire is not oxidized.

Solder joints appear dull or granular

This often indicates insufficient heating or overheating. Ensure the correct temperature is used and heat the joint evenly. Avoid excessive agitation while the solder solidifies.

Flux sputtering excessively

Ensure the soldering iron tip is clean and properly tinned. Reduce the temperature slightly if it's too high, or use a higher quality flux core if using an older wire.

Solder bridging between pads

Use a finer diameter solder wire for very small pads or components. Apply less solder per joint. Ensure adequate flux is present but not excessive. Use desoldering braid or a desoldering pump to remove excess solder.

Pros and Cons

Pros

  • Superior joint strength and reliability due to silver content.
  • Fast-flowing flux speeds up soldering process.
  • No-clean flux reduces post-soldering cleanup time.
  • Suitable for demanding professional electronic applications.
  • Meets industry standards for low halide content.

Cons

  • 1.2mm diameter may be too large for micro-soldering or very fine-pitch components.
  • Lead-free solder requires higher working temperatures than leaded solder.
  • Flux residues, while 'no-clean', may still require cleaning in specific critical applications.
  • Requires appropriate ventilation due to fumes generated during soldering.

Setup, Compatibility & Care

Setup: Ensure you are working in a well-ventilated area. Use a soldering iron with adjustable temperature control, set to the recommended temperature range for SAC305 solder (typically between 315°C and 370°C or 600°F and 700°F). Prepare the surfaces to be soldered by cleaning them thoroughly.

Compatibility: This lead-free solder is compatible with most common electronic components and PCB finishes. It is designed for use with standard soldering irons and equipment suitable for lead-free soldering.

Care: Store the solder wire in its original packaging in a cool, dry place to prevent oxidation and contamination of the flux core. After use, wipe the soldering iron tip clean and tin it immediately to protect the tip from oxidation. Keep the reel clean and free from dust.

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