Description
Weller WSW Solder Wire SAC M1 0,5mm, 500g, Sn3,0Ag0,5Cu3,5% (T0051386499) — BOLTON SKU 67921.
About the T0051386499 Weller SAC M1 Solder Wire, 0.5
The T0051386499 WSW SAC M1 solder wire is Weller item T0051386499, a lead-free flux-cored wire supplied in 0.5 mm diameter on a 500 g reel. The alloy is Sn96.5 Ag3.0 Cu0.5, the SAC305 composition that is the common lead-free reference for electronics assembly, with a melting range of 217 to 221 degrees Celsius. Flux content is 3.5 percent of a no-clean formulation, and Weller states a continuous flux core through the wire, which matters because a broken core produces dry sections that solder poorly. Weller also cites reduced iron leaching to extend tip life and reduced flux splash. The product is RoHS compliant. At 0.5 mm this is a fine wire intended for controlled deposition on small joints rather than bulk work. Country of origin declared on supply is Japan.
Key specifications
| Manufacturer part number | T0051386499 |
|---|---|
| Brand | Weller |
| Alloy | Sn96.5 Ag3.0 Cu0.5 (SAC305) |
| Melting range | 217 – 221 degrees C |
| Flux type | No-clean |
| Flux content | 3.5 % |
| Diameter | 0.5 mm |
| Reel weight | 500 g |
| RoHS | Compliant |
| Country of origin | Japan |
Typical applications
A 0.5 mm SAC305 no-clean wire is used for lead-free hand soldering and rework of surface mount and fine-pitch through-hole assemblies, where the thin gauge allows a measured amount of solder per joint. The no-clean flux suits work that is not routed through an aqueous wash, and the lead-free alloy is specified where the finished assembly must remain RoHS compliant.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).




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