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Weller WSW SCN M1 (T0051404999) Lead Free Solder Wire, Dia: 0.3; 0.5; 0.8 mm / 0.012; 0.020; 0.031 in, Wt: 21 g / 0.740 oz, Alloy Sn99.3Cu0.6Ni0.05, Flux content 3.5%

Weller WSW SCN M1 (T0051404999) Lead Free Solder Wire

Bottom line: The Weller WSW SCN M1 Lead Free Solder Wire is a specs-and-price decision rather than a crowd-consensus one in the tools & maintenance category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For PC and retro-hardware cleaning and maintenance tools, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Before you buy

  • Check battery runtime and RPM/CFM specs match your case size and cleaning frequency
  • Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Designed to enhance the quality of all hand and robotic soldering jobs, Weller WSW increases productivity while reducing operating costs. WSW solder wires optimize the performance of the soldering process by reducing tip consumption , ensuring a low total cost of ownership by decreasing labor time and resources. The patented Reduced Splash feature increases direct user safety and clean workbrench. With a guaranteed 100% continuous flux core, combined with pure first metal melting, WSW avoids costly rework and enables long-term, highly durable solder joints without cracking, even on difficult…

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SpecPicks Verdict

SpecPicks scored Weller WSW SCN M1 Lead Free Solder Wire using a rating × review-volume × price-fit model applied to published specs and reviews across the tools & maintenance category. Compare with similarly-priced alternatives in the tools & maintenance category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for tools & maintenance: PC towers accumulate significant dust in 3–6 months, so cleaning frequency drives cordless vs. canned-air tradeoff decisions. Match the device's RPM or CFM rating to your case size, and confirm battery runtime covers a full tower cleaning before ordering. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • WSW SCN M1 solder wire (Sn99.3 Cu0.6 Ni0.05/ flux content 3.5%) - 0.3mm, 0.5mm, 0.8mm kit 21g

Full Specifications

BrandWeller
Weight21g
MaterialLead
Item FormSolid
Item ShapeCylindrical
Unit Count1.0 Count
Part NumberT0051404999
Model NumberT0051404999
Item Diameter0.3 Millimeters
Wire Diameter0.3 Millimeters
Item Thickness0.3 Millimeters
Item Type NameSolder Wire
Item Dimensions1.85 x 1.85 x 1.65 inches
Number of Items1
Included ComponentsWeller WSW SCN M1 (T0051404999) Lead Free Solder Wire, Dia: 0.3; 0.5; 0.8 mm / 0.012; 0.020; 0.031 in, Wt: 21 g / 0.740 oz, Alloy Sn99.3Cu0.6Ni0.05, Flux content 3.5%
Warranty DescriptionNo Warranty - Consumable
Full listing titleWeller WSW SCN M1 (T0051404999) Lead Free Solder Wire, Dia: 0.3; 0.5; 0.8 mm / 0.012; 0.020; 0.031 in, Wt: 21 g / 0.740 oz, Alloy Sn99.3Cu0.6Ni0.05, Flux content 3.5%

Ready to buy?

Weller WSW SCN M1 (T0051404999) Lead Free Solder Wire, Dia: 0.3; 0.5; 0.8 mm / 0.012; 0.020; 0.031 in, Wt: 21 g / 0.740 oz, Alloy Sn99.3Cu0.6Ni0.05, Flux content 3.5% is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Weller WSW SCN M1 (T0051404999) Lead Free Solder Wire, Dia: 0.3; 0.5; 0.8 mm / 0.012; 0.020; 0.031 in, Wt: 21 g / 0.740 oz, Alloy Sn99.3Cu0.6Ni0.05, Flux content 3.5%
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