JST-SW305 is a lead-free SAC305 flux-cored solder wire (Sn96.5Ag3.0Cu0.5) with a no-clean flux core, available in Ø0.6, 0.8 and 1.0 mm. It wets quickly with little spatter, making it a dependable all-round wire from fine-pitch SMD rework to through-hole joints and soldering robots.
Key features
- SAC305 alloy, 217–219 °C, matches SAC305 SMT boards
- Ø0.6 mm (2.5 % flux) for small SMD joints and fine-pitch rework
- Ø0.8 mm for everyday SMD and small through-hole joints
- Ø1.0 mm (3.0 % flux) for through-hole and larger joints
- No-clean flux core for fast wetting
- Spools of 50 g, 100 g, 200 g and 1 kg
Typical applications
- Through-hole and SMD hand soldering
- Robotic point-to-point soldering
- Rework, repair and touch-up
- Electronics prototyping
Specifications and documents
Full technical data is listed under Additional information. Technical data sheets (TDS) and safety data sheets (SDS) are available on request. Browse all solder wire or contact our engineers for a recommendation, pricing and free samples.








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