Weller T0051386899 Lead Free Solder Spool 500 G

Product Description

The WELLER T0051386899 is a lead-free solder supplied on a 500 g spool, formulated from a tin-based alloy for use in electrical, electronic, and specialty soldering applications. With a melting range of 422.6 degrees F to 429.8 degrees F and a wire diameter of 1.0 mm, this solder is suited for precise, repeatable joints across a wide range of work. The lead-free composition meets requirements for RoHS-compliant assemblies and is appropriate for use in regulated industries. The spool format feeds cleanly into solder robots and manual iron work alike, keeping workflow consistent on the bench or in the field.

This solder is designed for professional and production use across electrical, electronic, repair, robotic soldering, automotive, solar, military, aerospace, and medical device applications. The 500 g spool size is well suited to production environments and busy service shops where a smaller roll would run out quickly. HVAC technicians, electricians, and electronics technicians working on control boards, sensors, and low-voltage wiring will find the 1.0 mm diameter appropriate for most through-hole and general-purpose soldering tasks.

Key Features

• Lead-free alloy formulation supports RoHS-compliant and regulated-industry work including military, aerospace, and medical device applications
• Melting range of 422.6 degrees F to 429.8 degrees F provides a defined working window for consistent joint quality
• 1.0 mm wire diameter suits general-purpose through-hole and repair soldering
• 500 g spool format minimizes changeover time in production and high-volume service environments
• Compatible with solder robots and manual soldering irons

Compatibility

Suitable for electrical, electronic, repair, robotic soldering, home projects, military, aerospace, medical device, automotive, and solar applications as specified by the manufacturer.

Installation Notes

Soldering work on live electrical assemblies must be performed with power de-energized and capacitors fully discharged before applying heat. Use appropriate fume extraction when soldering in enclosed spaces, as flux vapors require ventilation regardless of lead content. Follow applicable codes and industry standards for the work category, including IPC standards for electronic assembly or NEC requirements where electrical connections are involved. Allow joints to cool undisturbed before handling to ensure full solidification and a reliable connection.