ASAHI WLSCS7Q03I
ASAHI WLSCS7Q03I is a lead-free cored solder wire designed for general soldering, rework, and point soldering in professional applications. The alloy is an enhanced tin/copper alloy developed as a direct replacement for existing SnCu0.7 solder. This makes it relevant for those who require a lead-free wire while also desiring a soldering process that behaves stably in practice.
Asahi describes SCS7 as an alloy with good wetting properties and low dross formation. In short, this means that it flows more easily onto the workpiece and generates less waste during soldering. At the same time, its mechanical strength and fatigue resistance are highlighted as being close to those of tin/lead solders. These are precisely the properties that are important when the solder joint must withstand both mechanical stress and temperature exposure.
The core is a no-clean flux with ROL0 classification. In practice, this means that cleaning is typically not required after soldering because the residues are dry, non-tacky, and in most cases virtually inactive. If an assembly requires cleaning, the residues can be removed with a standard flux cleaner.
The wire can be used for automatic, manual, rework, point, and brush soldering. The manufacturer's documentation also indicates that wire dimensions are available down to 0.25 mm and that the product is supplied in several diameters and spool sizes.
See datasheet from the manufacturer
Typical applications
- Manual soldering
- Rework
- Point soldering
- Brush soldering
- Automated soldering tasks
Specifications
- Manufacturer: ASAHI
- MPN: WLSCS7Q03I
- Product: SCS7 CLF5023 no clean core wire
- Alloy: Sn/Cu0.7/Si0.02
- Melting point: 227 °C
- Flux classification: ROL0
- Halogen content: None added
- Flux content: 2.0 / 2.5 / 3.0 ± 0.3 wt%
- GTIN/EAN: Not specified in verified data
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