--- product_id: 375545736 title: "Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder" brand: "enersystec" price: "฿1777" currency: THB in_stock: true category: "Enersystec" url: https://www.desertcart.co.th/products/375545736-ultra-thin-solder-wire-0-01in-0-3mm-rosin-core store_origin: TH region: Thailand --- # Sn99 Ag0.3 Cu0.7 high conductivity alloy 419°F fast melting point 0.01in ultra-thin precision Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder **Brand:** enersystec **Price:** ฿1777 **Availability:** ✅ In Stock ## Summary > ⚡ Solder Smarter, Not Harder — Precision Meets Performance! ## Quick Answers - **What is this?** Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder by enersystec - **How much does it cost?** ฿1777 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/375545736-ultra-thin-solder-wire-0-01in-0-3mm-rosin-core) ## Best For - enersystec enthusiasts ## Why This Product - Trusted enersystec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rosin Core Flux 2.5%:** Optimized flux content guarantees smooth flow and strong, reliable joints every time. - • **Compact & Lightweight:** 50g spool fits effortlessly in your toolkit, ready for on-the-go professional repairs. - • **Rapid Heat Activation:** Melts quickly at 419°F (217°C) to speed up your workflow and reduce downtime. - • **Premium Lead-Free Alloy:** Sn99 Ag0.3 Cu0.7 composition ensures superior conductivity and eco-friendly soldering. - • **Micro-Precision Soldering:** Ultra-thin 0.01in diameter perfect for delicate MSD pads and fine electronics work. ## Overview The Ultra-Thin Solder Wire 0.01in (0.3mm) features a lead-free Sn99 Ag0.3 Cu0.7 alloy with 2.5% rosin core flux, melting rapidly at 419°F for efficient, high-precision electronics soldering. Ideal for fine work on small components, this 50g spool delivers excellent conductivity and smooth flow, making it a must-have for professional-grade repairs and projects. ## Description International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Features - ULTRA-THIN- the solder wire diameter is just 0.01inch, designed to solder the tiny component, just enough to add enough solder on those small MSD pads - LOW MELTING POINT- solder fast melting at 419F ( 217 Deg.C), suitable all soldering tools - IMPROVED SOLDER- this 0.3mm solder wire contented alloy materials Sn99 Ag0.3 Cu0.7, provides excellent conductivity, eliminate soldering issue, reduce labor cost - APPLICATION- good for fine solder work, soldering for electronics equipment - LEAD FREE- Unlead solder, excellent performance for electric soldering project ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07VT4MLD1 | | ASIN | B07VT4MLD1 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #123,090 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #547 in Electrical Wire | | Color | Silver | | Date First Available | 19 August 2019 | | Date First Available | 19 August 2019 | | Included components | 0.3mm solder wire LeadFree | | Item Package Quantity | 1 | | Item Weight | 50 g | | Item model number | EST-SW35-0.3LDF50 | | Item model number | EST-SW35-0.3LDF50 | | Manufacturer | Enersystec Electric Co.,Ltd | | Manufacturer | Enersystec Electric Co.,Ltd | | Material | lead, Alloy | | Part number | EST-SW35-0.3LDF50 | | Power source type | ac | | Product Dimensions | 2.8 x 2.8 x 5.5 cm; 50 g | | Product Dimensions | 2.8 x 2.8 x 5.5 cm; 50 g | | Size | 0.01in-0.11lb | | Special Features | 1. Ultra-thin 0.01inch diameter, Rosin Core, Flux 2.5%, Flow well, Lead Free Solder Wire | ## Images ![Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder - Image 1](https://m.media-amazon.com/images/I/61ra778d57S.jpg) ![Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder - Image 2](https://m.media-amazon.com/images/I/61niP-66hHS.jpg) ![Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder - Image 3](https://m.media-amazon.com/images/I/61eBv-cjyAS.jpg) ![Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder - Image 4](https://m.media-amazon.com/images/I/61nMfz85dLS.jpg) ![Ultra-Thin Solder Wire 0.01in (0.3mm) Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder - Image 5](https://m.media-amazon.com/images/I/61XESRMqbhS.jpg) ## Questions & Answers **Q: Can it be used on brass** A: It is ok to use this solder for the brass, But this solder is very fine, the diameter is 0.01 in / 0.3mm solder wire, If you soldering a big brass, you should use larger solder wire, such as 1.0mm or 1.5mm solder wire **Q: does this can be used to solder aluminium wires ?** A: Yes, this fine electrical solder wire can be used to soldering the aluminum wires, The solder wire diameter is 0.01inch / 0.3mm, very thin solder wire, It is mainly for electronics soldering for components or wires **Q: Can this be coiled around toothpicks without straightening back?** A: Yes. It will probably relax some. **Q: Can I use this with soldering iron to repair keychain?** A: This is super thin that is ideal for working of soldering on motherboards. May need to find a larger size solder wire. ## Frequently Bought Together - Ultra-Thin Solder Wire 0.01in 0.3mm Rosin Core Flux 2.5, Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 Flow 50g Electronics Soldering Electric Solder - Lesnow solder wick braid 10ft Length Desoldering Wick Braid Remover Tool Solder Sucker 1 piece No-Clean soldering Wick Wire Roll and Disassemble Electrical Components - Liquid Solder Flux Dropper (30 ml/1 Oz.) I RMA Liquid Solder Flux I Soldering Flux I Electrical Solder I No Clean Liquid Flux I Rosin Flux I Soldering Flux for Electronics I Lead Free Liquid Solder I --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/375545736-ultra-thin-solder-wire-0-01in-0-3mm-rosin-core](https://www.desertcart.co.th/products/375545736-ultra-thin-solder-wire-0-01in-0-3mm-rosin-core) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-26*