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The WELLER T0051388799 is a lead-free solder supplied on a 250 g spool, formulated from a metal alloy designed for clean, reliable joints across a wide range of electrical and electronic applications. The wire diameter measures 0.8 mm, making it well suited for fine-pitch work on circuit boards and precision assemblies. The alloy has a melting range of 422.6 degrees F to 429.8 degrees F, giving technicians a narrow working window that supports controlled joint formation. This solder is intended for use by electronics technicians, field service professionals, and trade specialists who require a RoHS-compatible consumable for production, repair, or rework tasks.
This solder wire is appropriate for a broad set of applications including general electrical repair, electronic assembly, robotic soldering systems, automotive electronics, solar installations, aerospace assemblies, medical device manufacturing, and military-grade rework. The 250 g spool format is practical for bench use and moderate-volume production environments. Its lead-free alloy composition meets requirements for projects and industries that prohibit the use of lead-bearing solder materials.
Designed for use with standard hand soldering irons, soldering stations, and robotic solder systems that accept 0.8 mm wire-feed solder. Applicable to electrical, electronic, automotive, solar, aerospace, military, and medical device repair and assembly applications.
Soldering work on live or energized assemblies should never be performed. Power down and discharge all circuits before beginning any solder repair or rework. Use appropriate ventilation or fume extraction when soldering, as flux vapors from any solder alloy can be hazardous. Technicians working on aerospace, military, or medical device assemblies should verify that this alloy meets applicable project or contract specifications before use.
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