63/37 Rosin Core Solder Wire, 0.3 mm 50 g Low-Melting Tin-Lead Wire with 1.8% Flux for Electronics
63/37 Rosin Core Solder Wire, 0.3 mm 50 g Low-Melting Tin-Lead Wire with 1.8% Flux for Electronics
63/37 rosin core solder wire melts at a sharp 183°C point for smooth flow across compatible circuit boards, wires, motors, radios and other electronic repairs. The fine 0.3 mm diameter gives technicians precise feed control around small pads and closely spaced components, while 1.8% internal flux promotes wetting without a separate flux step for routine clean surfaces.
The featured pocket-size spool contains 50 g of Sn63/Pb37 solder, with 0.8 and 1.0 mm diameters plus a two-spool 0.3 mm pack also listed. This product contains lead: use suitable ventilation, avoid breathing fumes, wear appropriate protection, keep it away from children and food-contact areas, and wash hands thoroughly after handling.
Specifications
- Product: rosin core tin-lead solder wire
- Alloy: Sn63/Pb37
- Tin content: 63%
- Lead content: 37%
- Flux content: 1.8%
- Featured diameter: 0.3 mm / 0.0118 inch
- Featured weight: 50 g / 1.76 oz
- Melting point: 183°C / 361°F
- Other diameters: 0.8 and 1.0 mm
- Pack option: one or two 0.3 mm 50 g spools
- Uses: circuit boards wires radios televisions stereos motors and electronic devices
- Contains lead
- Use ventilation and wash hands after handling
- Brand: HengTianMei
- Model: HTMSW63370350
Frequently Asked Questions
What makes 63/37 solder useful for electronics?
The eutectic Sn63/Pb37 alloy changes from solid to liquid at about 183°C without a pasty range helping joints form quickly when the surfaces are prepared.
Which diameter should I select?
The featured 0.3 mm wire offers fine feed control for small electronics. Choose 0.8 or 1.0 mm when a larger joint needs more solder volume.
Does the wire contain flux?
Yes. It has a 1.8% rosin core that supports wetting on compatible clean metal surfaces during soldering.
What handling precautions apply?
The alloy contains lead. Work with ventilation avoid fumes and ingestion keep it away from children and food surfaces and wash hands after use.