Solder Wire 1 mm 10 g Sn99.3 Cu0.7 5 Spools by 3Dsimo

Solder Wire 1 mm 10 g Sn99.3 Cu0.7 5 Spools by 3Dsimo is a lead‑free tin–copper solder intended for manual electronic soldering and light mechanical repairs. The pack includes five small 10 g spools of 1 mm diameter wire with an alloy composition of 99.3% tin and 0.7% copper, formulated to provide reliable wetting, adequate mechanical strength and compatibility with typical soldering irons and stations used for electronics work.

Advantages

This tin‑copper solder offers consistent melting behaviour and good wetting on common electronic metals, making it practical for fine work and small joints. The 1 mm diameter balances ease of handling and precise application for component leads, wire connections and small mechanical fixes. Supplied as five individual 10 g spools, the pack is convenient for hobbyists and technicians who need multiple small reels for different workstations or projects.

Suitable for

• Soldering through‑hole and surface‑mount electronic components
• Repairing wires, connectors and small cable joints
• Small mechanical soldered joints and hobby electronics projects
• Use with standard soldering irons and stations requiring lead‑free solder

Key specifications

• Alloy composition: 99.3% tin (Sn) and 0.7% copper (Cu)
• Wire diameter: 1 mm
• Spool weight: 10 g per spool
• Pack quantity: five spools (total 50 g)
• Form: solid core wire suitable for manual soldering

How to use

Prepare the surfaces by cleaning off oxidation, grease and contaminants for optimal wetting. Heat the joint with an appropriate soldering iron or station to the recommended working temperature for tin–copper solders, then feed the 1 mm wire into the heated area until solder flows and forms a smooth fillet. Remove heat and allow the joint to cool undisturbed. Use appropriate flux if additional activation is required; observe ventilation and safety practices during soldering.

Usage recommendations

For reliable results, use a soldering tip sized to the joint, maintain the iron at a steady temperature suited for lead‑free tin–copper alloys, and apply flux where needed to improve wetting. Store spools in a dry environment to prevent oxidation and keep spools separate to avoid tangling.