The Solder Wire Lead Roll 60/40 1mm 200g High Quality (1.0mm Standard Gauge / 200g Spool) is an industrial-grade electrical soldering alloy engineered for high-volume through-hole PCB assembly, thick wire splicing, connector terminations, and general electronics repair. Formulated with a classic 60% Tin (Sn) and 40% Lead (Pb) metallurgical ratio, it offers a low melting range (183°C–190°C) with a narrow plastic phase, enabling fast liquefaction, exceptional capillary flow, and quick solidification. Containing an integrated, non-corrosive multi-channel rosin flux core (typically 1.8%–2.2%), its 1.0mm thickness delivers ample solder volume per feed stroke, making it ideal for larger solder pads, power components, ground planes, and heavy-duty wire harnesses.

Specifications

• Alloy Composition: 60% Tin (Sn) / 40% Lead (Pb)
• Wire Diameter: 1.0 mm (±0.05 mm / Heavy-Duty Standard Gauge)
• Net Solder Weight: 200 g (Gross spool weight approx. 220 g to 235 g)
• Flux Type / Core: Continuous Integrated Rosin Activated (RA) / Mildly Activated (RMA) Core
• Flux Content / Percentage: 1.8% to 2.2% (By weight)
• Melting Temperature Range:
  • Solidus: 183°C (361°F)
  • Liquidus: 190°C (374°F)
• Recommended Iron Tip Temperature: 320°C to 360°C (608°F to 680°F)
• Density: Approx. 8.5 g/cm³
• Electrical Conductivity: Approx. 11.5% to 12% IACS
• Flux Residue Characteristics: Light amber, transparent, non-conductive, non-corrosive under standard operating conditions
• Spool Dimensions: Approx. 55 mm Diameter × 50 mm to 55 mm Height
• Spool Hub Hole Diameter: Approx. 20 mm (Standard dispenser spindle size)

Features

• High-Volume 1.0mm Feed: Provides efficient solder volume per feed cycle, significantly speeding up the soldering of large through-hole joints, heavy ground tabs, and thick copper leads.
• Low Melting Point & Fast Wetting: Melts smoothly at ~185°C to facilitate immediate wetting across copper, tin, and brass surfaces without requiring excessive thermal dwell time.
• Continuous Rosin Flux Core: High-activity internal flux core instantly removes surface oxides on contact, ensuring clean solder spread and preventing dry or crystallized joints.
• Durable, Crack-Resistant Joints: Solidifies into shiny, concave, mechanically robust fillets with high vibration resistance and low electrical contact resistance.
• High-Capacity 200g Workshop Spool: Provides double the wire quantity of standard 100g rolls, making it cost-effective for production lines, educational labs, and busy service benches.

Common Applications

• Through-Hole PCB Assembly: Soldering power transistors (TO-220, TO-247), large electrolytic capacitors, relays, transformers, and heavy pin headers.
• Wire Harnessing & Power Leads: Tinning and splicing 14 AWG to 22 AWG copper stranded wires, automotive wiring harnesses, and battery power leads.
• Heavy-Duty Connectors: Terminating DC power barrel jacks, banana plugs, binding posts, high-current screw terminal blocks, and chassis mount toggle switches.
• Power Supplies & Inverter Rework: Servicing linear power supplies, audio power amplifiers, motor speed controllers, and industrial control boards.
• General Appliance Maintenance: Repairing heating elements, switches, power cords, and motor lead terminations in domestic and industrial appliances.

Usage Tips

• Soldering Iron Temperature Setting: Set your soldering station to 330°C–350°C. For high-mass ground planes or thick wire joints, pair with a medium-to-large chisel or bevel tip to maintain steady heat transfer.
• Proper Feeding Technique: Place the iron tip in contact with both the component lead and the PCB pad for 1–2 seconds to reach operating temperature, then feed the 1.0mm wire into the heated joint (opposite the tip) until a uniform concave fillet is formed.
• Flux Residue Cleaning: The rosin residue is electrically non-conductive and non-hygroscopic, but can be removed for cosmetic cleanliness or high-reliability applications using Isopropyl Alcohol (IPA ≥ 99%) with an ESD-safe brush or cotton swab.
• Health & Safety Guidelines:
  • Always work in a well-ventilated environment or use an active benchtop fume extractor to avoid inhaling rosin fumes.
  • Contains lead; wash hands thoroughly with soap and water after handling, and avoid eating, drinking, or smoking in the soldering area.
• Storage Recommendations: Store the spool in a dry, room-temperature location away from moisture and corrosive chemical vapors to keep the outer surface oxide-free.