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Spool of 0.8mm tin-lead rosin-core solder wire, 100g

63-37 Tin Lead Rosin Core Solder Wire Sn63-Pb37 Soldering 0.8mm 100g

SKU CH-BQWQ-60ZZ6

Rosin-core solder wire with a 63% tin and 37% lead alloy melts at 183°C for reliable electrical joints

  • Fit and compatibilityPX-1006337
  • Certifications and standardsTIN
  • Sn63-Pb37 alloy gives consistent electrical joints
  • 2 % flux cleans surfaces while you solder
  • 8 mm diameter feeds easily through fine tips
  • 183 °C melting point speeds up rework tasks
  • 100 g spool lasts through many board repairs

Composition and form

This 100g spool contains Sn63-Pb37 alloy solder wire with a 2.2% rosin flux core. The 0.8mm diameter suits fine-pitch work on printed circuit boards and small electrical terminals. It melts at 183°C (361°F) for quick joint formation.

Best suited for electronics repair

Technicians and hobbyists who need reliable joints on through-hole boards, home audio gear or automotive wiring will find this alloy effective. Buyers who require lead-free formulations for regulatory compliance or who need thicker wire for heavy-gauge cables should consider other options.

Alloy ratio determines melting point

The fixed 63% tin and 37% lead composition sets the eutectic melting point at 183°C, giving a narrow plastic range that reduces cold-solder defects. This single specification decides whether the wire meets your process requirements.

How it compares

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

Price $14.99
Cheaper than about 73% of the 802 comparable items (median $25.99).

Specifications

Compatibility
Fit and compatibilityPX-1006337
Environment & compliance
Certifications and standardsTIN

Questions about this item

How do I install the 0.8mm Sn63-Pb37 solder wire, and what step do people get wrong?

Feed the 0.8mm wire onto a spool holder or keep the coil loose; the common error is bending the wire sharply at the tip, which causes kinks that jam the feed.

What maintenance or replacement will this 100g roll of 2.2% flux-core solder need later?

The rosin flux burns off during each joint; when residue builds up on the tip, clean it with a brass sponge and re-tin — the wire itself is consumed and replaced when the 100g roll runs out.

What limit appears first during sustained soldering with this Sn63-Pb37 alloy?

The eutectic alloy melts at 183°C; if the iron idles much hotter the 2.2% flux core chars and the tip oxidises faster, so temperature control is the practical limit.

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