Description:
A RoHS-compliant solder stick is an essential lead-free alloy used in manual and dip soldering applications, meeting the strict Restriction of Hazardous Substances (RoHS) directive. It’s typically a tin-copper (Sn-Cu) or tin-silver-copper (Sn-Ag-Cu) alloy, ensuring low toxicity and environmental safety. This durable, rod-shaped solder provides excellent wetting and flow characteristics for reliable joints. Available with or without silver, the silver-bearing variant offers enhanced strength and electrical conductivity. It is the go-to choice for manufacturers transitioning to environmentally responsible production.
Applications:
- Dip Soldering: Used in large solder pots for simultaneous soldering of multiple components, particularly on circuit boards or wire ends.
- Manual Soldering/Rework: Applied using a soldering iron or torch for joining components, repairs, or intricate assemblies.
- Metal Joining: General purpose joining of wires, terminals, and metal components where a reliable, lead-free electrical or mechanical connection is required.
Varients:
- Silver-Free (e.g., Sn99.3Cu0.7): A cost-effective, common lead-free option, primarily used where high-reliability demands (like extreme temperature cycling) are not the main concern.
- Silver-Bearing (e.g., Sn96.5Ag3.0Cu0.5): Contains a percentage of silver, which significantly improves the joint’s mechanical strength, fatigue resistance, and electrical conductivity, making it suitable for demanding, high-reliability applications.
- Various Diameters/Weights: Sticks are available in different diameters and weights to suit the size of the solder pot or the specific application method.
