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The WELLER T0051388599 is a lead-free solder supplied on a 250 g spool. It is formulated from a tin-based alloy with a narrow melting range, spanning a minimum melting temperature of 422.6 degrees F to a maximum of 429.8 degrees F. This tight range supports consistent flow and reliable joint formation across a broad range of soldering tasks. The spool format is compatible with manual soldering irons and automated solder robot equipment. Licensed electricians, electronics technicians, and specialized assembly professionals are the primary users of this product.
This solder is suited for electrical and electronic assembly, circuit board repair, and automated soldering applications. Its lead-free alloy composition meets requirements common in industries with strict material standards, including military, aerospace, medical device, automotive, and solar sectors. The 0.8 mm diameter wire feeds smoothly through robotic soldering systems and provides good control during hand-soldering operations. It is equally viable for home project use where lead-free solder is preferred or required.
Designed for use in electrical and electronic soldering applications including repair, assembly, automated solder robot systems, and hand soldering with standard soldering irons that accept 0.8 mm diameter solder wire.
This product is handled by electricians, electronics technicians, and assembly professionals working on live or de-energized assemblies. Always power down and discharge any capacitors in the circuit before soldering on electronic boards. Use appropriate ventilation when soldering, as flux fumes require extraction regardless of solder alloy type. Verify that the soldering iron tip temperature is set to a value sufficient to achieve full alloy melt given the 422.6 to 429.8 degrees F melting range of this product.
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