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Small spool of 0.6mm rosin-core 63/37 leaded solder wire, 12.5g

JacobsParts Inc.

JacobsParts Inc. SL12-06 soldering 0.6mm 12.5g 63/37

SKU CH-2J5V-KBNRF MPN SL12-06

Eutectic 63/37 rosin-core solder melts at a single 184.5 °C point to protect heat-sensitive electronics

  • Product typeRosin Core
  • Size or dimensions?0.6 mm 12.5g
  • Eutectic 63/37 alloy melts at a single 184.5 °C point protecting sensitive components
  • 6 mm diameter lets you place tiny joints on dense circuit boards
  • 0 % rosin flux cleans oxidation while you solder for reliable connections
  • 5 g spool supplies enough material for multiple small repair jobs
  • Leaded composition flows smoothly at lower heat reducing thermal stress on boards

Precision electronics solder

This 0.6mm rosin-core wire uses a eutectic 63/37 tin-lead alloy that melts at a true point of 184.5 Celsius. The fine diameter and low melting temperature suit delicate circuit-board work where components are sensitive to heat. Each spool contains 12.5g of solder with 2.0% flux.

Sustained joint quality

Because the alloy has a single melting point rather than a range, it solidifies quickly and consistently during repeated joints. This behaviour reduces the risk of cold solder connections during long assembly or repair sessions. The rosin flux activates cleanly at working temperature.

Handy spool format

The lightweight 12.5g spool is easy to handle at the bench and stores without taking much space. Its 0.6mm thickness feeds smoothly through fine tips for surface-mount and through-hole tasks. The leaded composition is not suitable for lead-free or high-volume production requirements.

How it compares

Measured against everything we stock in Soldering Irons & Stations, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 98% of the 802 comparable items (median $25.99).

Specifications

Product
Brand nameJufeng
Model nameSL12-06
Product typeRosin Core
Size & build
Size or dimensions?0.6 mm 12.5g

Questions about this item

Does the 0.6 mm rosin-core 63/37 solder produce much smoke or heat during long sessions?

The alloy melts at a single point of 184.5 °C, so a lower iron temperature is sufficient and less flux smoke is generated.

What equipment is needed to use this 12.5 g spool of 0.6 mm solder?

A temperature-controlled soldering iron, a stand with a damp sponge or brass wool, and a fume extractor or good ventilation.

Can this 63/37 tin-lead wire be used to repair joints originally made with lead-free solder?

Yes, the eutectic 63/37 alloy wets well at 184.5 °C and will fuse with existing lead-free joints when the iron reflows both metals.

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