63/37 Tin Lead Rosin Core Solder Wire .8mm 100g
63/37 tin-lead rosin-core solder wire, 0.8 mm diameter, 100 g spool with 2.0 % flux for electrical and PCB repair
- Compatibility/FitmentDZ-CSW-100G, Electrical soldering wire
- 63/37 tin-lead alloy melts at a lower temperature for fast joints
- 0% rosin core flux cleans surfaces so solder flows smoothly
- 8 mm diameter suits fine-pitch PCB work and general repairs
- 100 g spool provides ample length for multiple projects
- Strong, durable bonds suit electrical, electronic and appliance soldering
What it is
This is a 63/37 tin-lead rosin-core solder wire supplied on a 100 g spool with a 0.8 mm diameter. It is intended for electronics hobbyists, repair technicians and engineers who need a traditional leaded alloy for hand soldering.
Practical limits
The 63/37 eutectic composition melts at a single temperature lower than common lead-free alternatives, allowing faster joint formation with less thermal stress on components. The 2.0 % rosin flux core suits general electrical and PCB work but may leave residue that requires cleaning for high-reliability or conformal-coated assemblies. Leaded solder is restricted in many jurisdictions, so it cannot be used where RoHS compliance is mandatory.
Build and daily use
The 0.8 mm thickness feeds smoothly through standard soldering iron tips and suits a wide range of through-hole and surface-mount pads. A 100 g spool provides enough length for many small projects while remaining compact on a bench. The rosin core activates during heating, reducing the need for separate flux application during routine repairs.
Highlights
- 63/37 tin-lead alloy melts at a lower temperature for fast joints
- 0% rosin core flux cleans surfaces so solder flows smoothly
- 8 mm diameter suits fine-pitch PCB work and general repairs
- 100 g spool provides ample length for multiple projects
- Strong, durable bonds suit electrical, electronic and appliance soldering
Specifications
| Compatibility/Fitment | DZ-CSW-100G, Electrical soldering wire |
|---|
Questions about this item
Is the 0.8 mm diameter the right choice for general PCB work or should I pick a thinner wire?
The 0.8 mm diameter is a standard size that feeds well for through-hole components and larger surface-mount pads, while still being manageable for finer joints with a suitable tip.
What does the 63/37 tin-lead ratio mean for melting behaviour on a joint?
The 63/37 alloy is eutectic, so it melts and solidifies at a single temperature without a pasty range, giving fast, reliable joints with less risk of cold solder connections.
How does the 2.0 % rosin-core flux affect the soldering process?
The 2.0 % rosin core cleans oxidation as the solder flows, promoting wetting on copper pads and component leads without needing separate flux application for most electrical repairs.
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