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A 50 g spool of lead-free SAC305 solder wire in a fine 0.5 mm (0.02″) diameter — ideal for both through-hole and SMT soldering work. The no-clean rosin core ...

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A 50 g spool of lead-free SAC305 solder wire in a fine 0.5 mm (0.02″) diameter — ideal for both through-hole and SMT soldering work. The no-clean rosin core flux makes for clean joints without the need for post-solder cleaning.

SAC305 is a widely used RoHS-compliant lead-free formulation, making it a great alternative to traditional 60/40 leaded solder. The 50 g spool size is practical for hobbyists and makers — enough for plenty of projects without the bulk of a full 1 lb spool.

Key Features

  • SAC305 Formulation – Sn 96.5%, Ag 3.0%, Cu 0.5% (tin/silver/copper)
  • Lead-Free & RoHS Compliant – Safe for lead-free workshops and projects
  • 0.5 mm Diameter – Fine gauge suitable for through-hole and SMT soldering
  • No-Clean Rosin Core – Built-in flux for clean, reliable solder joints
  • 50 g Spool – Convenient size for hobbyist and maker workbenches

Ideal For

  • Electronics kit assembly and PCB soldering
  • Surface-mount (SMT) component work
  • Lead-free and RoHS-compliant projects
  • General electronics prototyping and repair

Jargon buster

Plain-language definitions for the technical terms used above.

PCB
A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
through-hole
A mounting style where the component leads pass through holes in a circuit board and are soldered on the other side. Through-hole parts are often easier to handle and solder by hand, which is useful for classroom and hobby projects.
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