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Small silver spool of 0.8 mm 63/37 rosin-core solder wire, 50 g reel

HengTianMei HTMSW63370850 Tin Lead 63/37 Rosin Core Solder Wire 0.8mm 50g

SKU CH-C1G2-PXAHK

Tin-lead 63/37 rosin-core solder wire, 0.8 mm diameter on a 50 g spool, melts at 183 °C for smooth joints on circuit boards and small electronics

  • Main materialLead
  • Eutectic 63/37 alloy melts cleanly at 183°C
  • 8% rosin flux core gives smooth, strong joints
  • 8 mm diameter suits fine-pitch and general board work
  • 50 g spool fits a pocket or small tool kit
  • Low 183°C melting point protects sensitive components

Precision electronics solder

HengTianMei HTMSW63370850 is a rosin-core solder wire formulated for hand-soldering circuit boards, wiring and small electrical repairs. The 63/37 tin-lead alloy and 1.8% flux core suit hobbyists, technicians and DIY repairers who need reliable joints on through-hole and surface-mount parts.

63/37 eutectic alloy

The 63% tin, 37% lead ratio creates a true eutectic composition that melts sharply at 183 °C (361 °F) without a plastic range, so joints solidify quickly and resist cold-solder defects.

0.8 mm diameter, 50 g spool

At 0.8 mm the wire feeds cleanly through fine tips for dense board work, while the 50 g reel supplies enough length for many small jobs; larger production runs or thick power leads will need a heavier gauge or bigger spool.

How it compares

Measured against everything we stock in Passive Components & Solder Supplies, at today’s prices. Recalculated every night.

Price $15.99
Pricier than about 62% of the 265 comparable items (median $9.99).

Specifications

Product
Brand nameHengTianMei
Model nameHTMSW63370850
Part numberHTMSW63370850
Size & build
Main materialLead

Questions about this item

How does the 63/37 tin-lead ratio behave once it is in a real machine?

The eutectic 63/37 alloy melts sharply at 183 °C / 361 °F with no plastic range, so joints solidify fast and resist cold-solder defects during hand soldering.

What does the 1.8 % rosin flux core cap in practice?

The 1.8 % flux cleans oxidation and promotes wetting on copper pads, but leaves visible residue that should be cleaned with isopropyl alcohol for high-reliability boards.

What does the 0.8 mm diameter on a 50 mm × 18 mm spool need to fit or mount?

The 0.8 mm wire feeds from a 50 mm diameter, 18 mm wide spool that sits on any standard benchtop holder or clips directly to a pencil iron stand.

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