Lead Solder Wire 63/37 Tin-Lead Core.031 Inch Diameter, 1 Pound Spool With Water Soluble Flux 331 For Electronics, No Clean Rinse, Easy Melt, Pro Grade Solder For PCB Assembly And Repairs

63/37 Lead Solder Wire, 0.031in, 1lb Spool
✔️ 63/37 tin-lead core, 0.031in dia, flux 331, water-soluble

This lead solder wire is designed for electronics assembly and PCB repairs, commonly used in hobbyist builds and professional manufacturing. The SN63/PB37 alloy ensures sturdy joints, while flux 331 is water-soluble for easier cleanup. Diameter 0.031 in (0.80 mm) supports fine-pitch components.

Dimension	Value
Diameter	0.031 in (0.80 mm)

✅ 1 lb spool per pack
✅ SN63/PB37 alloy for strong joints
✅ Diameter 0.031 in (0.80 mm)
✅ Flux 331 water-soluble core for easy cleanup
✅ Melting point around 361°F (183°C)

💡 What is lead solder wire used for in electronics assembly and PCB repair?

Lead solder wire is handy for hand-soldering and quick fixes on boards. - For PCB assembly and rework
- SN63/PB37 alloy provides reliable joints
- Water-soluble flux 331 cleans up with heated water
- Suitable for hobbyists and professionals