Oasis Select
Lead-Free Solder Wire SN99.3 Cu0.7 Flux Core Reel 50g
Lead-Free Solder Wire SN99.3 Cu0.7 Flux Core Reel 50g
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High-Purity Lead-Free Solder Wire – Clean, Safe & Easy to Use
Upgrade your soldering work with this SN99.3 Cu0.7 Lead-Free Solder Wire — a premium, environmentally friendly tin wire designed for electronics repair, PCB work, IC repair, and general electrical projects. With a high-purity alloy composition of 99.3% Tin (Sn) and 0.7% Copper (Cu), this solder wire delivers excellent conductivity, strong joints, and smooth flow every time.
Why Choose Lead-Free Solder Wire?
Traditional lead-based solder poses health and environmental risks. This RoHS-compliant, lead-free formula is a safer choice for hobbyists, professionals, and the environment alike. Learn more about reducing hazardous materials in electronics at the U.S. EPA's guidance on hazardous substances in electronics.
Key Features
- Lead-Free Formula: SN99.3 Cu0.7 alloy — RoHS certified and environmentally friendly
- 2% Rosin Flux Core: Built-in flux cleans the surface during soldering for strong, reliable bonds
- Low Spatter & Low Smoke: Minimal mess and fumes for a more comfortable soldering experience
- Non-Corrosive: Won't damage sensitive components or circuit boards
- Excellent Solderability: Flows smoothly and sets quickly with great insulation resistance
- Multiple Diameters Available: Choose from 0.5mm, 0.6mm, 0.8mm, or 1.0mm to suit your project
- 227°C Melting Point: Compatible with standard soldering irons
Product Specifications
| Alloy Composition | SN99.3 / Cu0.7 (99.3% Tin, 0.7% Copper) |
| Flux Content | 2% Rosin Flux Core |
| Melting Point | 227°C |
| Wire Diameter | 0.5mm, 0.6mm, 0.8mm, 1.0mm |
| Weight | 50g / 1.76 oz (including reel) |
| Applications | Electrical repair, IC repair, PCB soldering, electronics assembly |
| Compliance | RoHS Compliant, Lead-Free |
| Country of Origin | Made in China |
Perfect For
- Electronics hobbyists and DIY makers
- Professional PCB and IC repair technicians
- Home electrical repair and appliance maintenance
- Automotive and general electrical soldering
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For safety guidelines on working with electrical components and soldering tools, refer to OSHA's Electrical Safety Standards.
Frequently Asked Questions
Q: What does "SN99.3 Cu0.7" mean on lead-free solder wire?
A: SN99.3 Cu0.7 refers to the alloy composition of the solder wire — 99.3% Tin (Sn) and 0.7% Copper (Cu). This is a common lead-free formulation that meets RoHS compliance standards and provides strong, reliable solder joints with a melting point of 227°C.
Q: What wire diameter should I choose for electronics repair?
A: For fine electronics work such as IC repair and SMD components, a thinner diameter like 0.5mm or 0.6mm is recommended for precision. For larger joints, PCB through-hole soldering, or general electrical repair, 0.8mm or 1.0mm solder wire is ideal.
Q: Is this solder wire safe to use indoors?
A: Yes. This lead-free solder wire produces less smoke and spatter than traditional leaded solder, making it safer for indoor use. However, always solder in a well-ventilated area and use appropriate eye protection. The RoHS-compliant, non-corrosive formula is designed with user safety in mind.
Q: Does the 50g weight include the spool/reel?
A: Yes, the stated 50g weight includes the plastic reel. The net solder wire weight will be slightly less, depending on the reel. If you need more solder, check our store for additional weight options.
