--- product_id: 313444987 title: "0.3mm/50g" brand: "enersystec" price: "€ 0.03" currency: EUR in_stock: false reviews_count: 2 url: https://www.desertcart.be/products/313444987-0-3mm-50g store_origin: BE region: Belgium --- # Sn99 Ag0.3 Cu0.7 high conductivity alloy Low melting point 217°C 0.01in ultra-thin precision 0.3mm/50g **Brand:** enersystec **Price:** € 0.03 **Availability:** ❌ Out of Stock ## Summary > ⚡ Solder Smarter, Not Harder – Precision Meets Performance! ## Quick Answers - **What is this?** 0.3mm/50g by enersystec - **How much does it cost?** € 0.03 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/313444987-0-3mm-50g) ## 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 - • **Lead-Free Safety:** Eco-conscious and safe for home or office use without compromising solder quality. - • **Rapid Melt Efficiency:** Fast melting at just 217°C ensures quick, clean joints with any soldering tool. - • **Versatile Application:** Ideal for electronics repair, DIY projects, manufacturing, and fine solder work. - • **Micro-Precision Mastery:** Ultra-thin 0.01in diameter perfect for delicate MSD pads and micro soldering tasks. - • **Premium Alloy Performance:** Sn99 Ag0.3 Cu0.7 composition delivers superior conductivity and reliable connections. ## Overview This 50g spool of ultra-thin 0.01in (0.3mm) lead-free solder wire features a premium Sn99 Ag0.3 Cu0.7 alloy with rosin core flux 2.5%, melting quickly at 217°C for flawless, high-conductivity solder joints. Perfectly engineered for microelectronics, repair, and professional DIY projects demanding precision and reliability. ## 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. Review: Great soldering wire - Great soldering wire, melts very well amd is very thin. Review: Well priced, good quality. - Very well priced, good quality, lead free soldering wire; the diameter is perfect for mobile phone circuitry micro soldering, and is easy to use. 5***** ## 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, easy for soldering, fast melting solder wire 0.3mm gauge - 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, connectors, whatever for electronics repair, diy, manufacturing or soldering study, this fine solder wire is good for use - LEAD FREE- Unlead solder, high performance for electric soldering project, unlead solder wire is good for use at home or office, 0.01 inch diameter solder wire is your right choice for small soldering ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07VT4MLD1 | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 140,007 in DIY & Tools ( See Top 100 in DIY & Tools ) 100 in Solder | | Colour | Silver | | Customer Reviews | 5.0 5.0 out of 5 stars (6) | | Date First Available | 29 July 2019 | | Included Components | 0.3mm solder wire LeadFree | | Item Package Quantity | 1 | | Item Weight | 50 g | | Item model number | EST-SW35-0.3LDF50 | | Manufacturer | Enersystec Electric Co.,Ltd | | Material | lead | | Part Number | EST-SW35-0.3LDF50 | | Power Source | ac | | Product Dimensions | 2.8 x 2.8 x 5.5 cm; 50 g | | Size | Thin Gauge | | Special Features | 1. Ultra-thin 0.01inch diameter, Rosin Core, Flux 2.5%, Flow well, Lead Free Solder Wire | ## Images ![0.3mm/50g - Image 1](https://m.media-amazon.com/images/I/61ra778d57S.jpg) ![0.3mm/50g - Image 2](https://m.media-amazon.com/images/I/61niP-66hHS.jpg) ![0.3mm/50g - Image 3](https://m.media-amazon.com/images/I/61eBv-cjyAS.jpg) ![0.3mm/50g - Image 4](https://m.media-amazon.com/images/I/61nMfz85dLS.jpg) ![0.3mm/50g - 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great soldering wire *by D***L on 18 February 2026* Great soldering wire, melts very well amd is very thin. ### ⭐⭐⭐⭐⭐ Well priced, good quality. *by M***N on 30 November 2025* Very well priced, good quality, lead free soldering wire; the diameter is perfect for mobile phone circuitry micro soldering, and is easy to use. 5***** ## 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.be/products/313444987-0-3mm-50g](https://www.desertcart.be/products/313444987-0-3mm-50g) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-06*