Fine Soldering Wire 63/37

For applications that demand precision, consistency, and reliability, the Fine Soldering Wire 63/37, Flux 2.0%, Diameter 0.7 mm (100 g) is the ideal choice.

This eutectic alloy solder wire has a sharp melting point (~183 °C), making it perfectly suited for fine-pitch component soldering and high-speed production environments. The 2.0% activated rosin flux core ensures excellent wetting and helps form clean, strong solder joints even on oxidized surfaces.

The 0.7 mm diameter gives you precise control — ideal for SMD work, wire-to-board connections, and delicate rework operations.

Its compact 100 g spool is great for bench technicians, makers, and prototyping labs that require quality over quantity.

👉 See detailed technical specifications below:

🛠 Technical Details

⚠️ Precautions & Safety Tips

• Use a temperature-controlled soldering iron between 340–380 °C for optimal performance.

• Always work in a well-ventilated environment to minimize exposure to flux vapors.

• Wear appropriate eye protection and wash hands after handling.

• Keep the workbench ESD safe when working on sensitive circuits like IoT modules or MCUs.

• Store solder wire in a dry, sealed container to prevent oxidation.

💡 Use Cases & Applications

The Fine Soldering Wire 63/37 (0.7 mm, 100 g) is highly suitable for both professional and DIY applications:

• Professional PCB Assembly & Repair
  Ideal for precision work on densely populated boards and rework of SMD components.

• IoT & Smart Devices
  Trusted for building and repairing IoT modules and sensor arrays.

• Raspberry Pi & Single-Board Computers
  Suitable for assembling Raspberry Pi accessories and extensions.

• Drone Electronics
  Used in assembling drone ESCs, FPV systems, flight controllers, and power distribution boards.

• STEM Labs & Educational Projects
  Perfect for use in STEM workshops, university labs, and technical training environments.

• DIY Electronics & Prototyping
  A go-to choice for makers crafting wearable electronics, robotics, and automated systems.

🛠️ Pair With

• Electronics Components

• Tools and Accessories

• IoT & Smart Solutions

• Drones

• Power Supply

🎥 YouTube Insight

Watch this expert tutorial on fine-pitch soldering techniques using eutectic solder wire.

🏁 Conclusion & Value Proposition

The Fine Soldering Wire 63/37 (0.7 mm, 100 g) combines excellent flow, clean joints, and precise control — making it the perfect solution for both advanced electronics production and hobbyist builds.

Whether you’re assembling a commercial IoT device or crafting your next Raspberry Pi project, this wire delivers professional results.

Available now at Electroway — stock up today and enhance your soldering toolkit!