{"product_id":"lead-free-solder-wire-sn99-3-cu0-7-flux-core-reel-50g-1","title":"Lead-Free Solder Wire SN99.3 Cu0.7 | 50g Flux Core Reel","description":"\n\u003ch2\u003eLead-Free Solder Wire SN99.3 Cu0.7 – High Purity Flux Core Reel\u003c\/h2\u003e\n\u003cp\u003eUpgrade your soldering projects with this \u003cstrong\u003eenvironmentally friendly, lead-free solder wire\u003c\/strong\u003e. Formulated with \u003cstrong\u003e99.3% Tin (Sn) and 0.7% Copper (Cu)\u003c\/strong\u003e, this high-purity wire is RoHS compliant and designed for clean, reliable joints every time — ideal for electronics repair, PCB work, IC repair, and general electrical work.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead-Free Formula:\u003c\/strong\u003e SN99.3\/Cu0.7 composition — RoHS certified and environmentally safe\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2% Rosin Flux Core:\u003c\/strong\u003e Built-in flux activates on contact to clean oxide layers and promote excellent wetting for strong, reliable solder joints\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Spatter \u0026amp; Smoke:\u003c\/strong\u003e Engineered for minimal fume and spatter generation, making soldering more comfortable in enclosed workspaces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Diameter Options:\u003c\/strong\u003e Available in 0.5mm, 0.6mm, 0.8mm, and 1.0mm to suit fine-detail work or heavier connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Purity Tin:\u003c\/strong\u003e Ensures excellent electrical conductivity, non-corrosive joints, and strong insulation resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application:\u003c\/strong\u003e Suitable for electrical repair, circuit boards, IC components, electronics assembly, and hobbyist projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMelting Point:\u003c\/strong\u003e 227°C — compatible with most standard soldering irons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50g Reel (1.76 oz):\u003c\/strong\u003e Compact and easy to handle; other weights available in our store\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlloy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSN99.3 \/ Cu0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlux Content\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2% Rosin Core\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMelting Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e227°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5mm, 0.6mm, 0.8mm, 1.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50g \/ 1.76oz (includes reel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy Go Lead-Free?\u003c\/h3\u003e\n\u003cp\u003eLead-free soldering is now the industry standard for consumer electronics and is required by RoHS regulations across many markets. By switching to a lead-free alloy like SN99.3\/Cu0.7, you reduce exposure to hazardous lead fumes while still achieving professional-grade joints. Learn more about safe soldering practices and hazardous substance reduction from the \u003ca href=\"https:\/\/www.epa.gov\/lead\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. EPA Lead Information page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-scr-solid-state-relay-switch-module-dc3-24v-40a-optocoupler\"\u003e1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-12v-3-pin-pc-fan-power-extension-cable-26cm-cpu-gpu-cooler\"\u003e10-Pack 12V 3-Pin PC Fan Extension Cable 26cm – CPU GPU Cooler\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder 5x20mm \u0026amp; 6x30mm Screw\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between SN99.3 Cu0.7 lead-free solder and standard lead solder?\u003c\/h4\u003e\n\u003cp\u003eA: SN99.3 Cu0.7 is a lead-free alloy composed of 99.3% tin and 0.7% copper. Unlike traditional tin-lead (SnPb) solder, it contains no lead, making it RoHS compliant and safer for both the user and the environment. It has a slightly higher melting point (227°C vs ~183°C for 60\/40 SnPb), but produces equally strong and reliable electrical joints.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What wire diameter should I choose for electronics or IC repair?\u003c\/h4\u003e\n\u003cp\u003eA: For fine-pitch electronics, SMD components, or IC repair, the \u003cstrong\u003e0.5mm or 0.6mm\u003c\/strong\u003e diameter is recommended for precision control. The \u003cstrong\u003e0.8mm\u003c\/strong\u003e wire is a great all-rounder for general PCB work, while the \u003cstrong\u003e1.0mm\u003c\/strong\u003e diameter is better suited for larger joints, through-hole components, or wiring connections.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this solder wire require additional flux?\u003c\/h4\u003e\n\u003cp\u003eA: No. This solder wire features a \u003cstrong\u003e2% rosin flux core\u003c\/strong\u003e built right in, which activates during soldering to clean oxidation from metal surfaces and improve solder flow. For most electronics repair and assembly tasks, no additional flux is needed, though extra flux paste can be added for particularly stubborn or oxidised joints.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this solder wire safe to use indoors?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — this lead-free solder wire is formulated to produce \u003cstrong\u003eless smoke and fewer fumes\u003c\/strong\u003e compared to leaded solder. However, it is always best practice to solder in a well-ventilated area or use a fume extractor, especially during prolonged use. The absence of lead significantly reduces the risk of toxic fume exposure.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between SN99.3 Cu0.7 lead-free solder and standard lead solder?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"SN99.3 Cu0.7 is a lead-free alloy composed of 99.3% tin and 0.7% copper. Unlike traditional tin-lead (SnPb) solder, it contains no lead, making it RoHS compliant and safer for both the user and the environment. It has a slightly higher melting point (227°C vs ~183°C for 60\/40 SnPb), but produces equally strong and reliable electrical joints.\"}}, {\"@type\": \"Question\", \"name\": \"What wire diameter should I choose for electronics or IC repair?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For fine-pitch electronics, SMD components, or IC repair, the 0.5mm or 0.6mm diameter is recommended for precision control. The 0.8mm wire is a great all-rounder for general PCB work, while the 1.0mm diameter is better suited for larger joints, through-hole components, or wiring connections.\"}}, {\"@type\": \"Question\", \"name\": \"Does this solder wire require additional flux?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. This solder wire features a 2% rosin flux core built right in, which activates during soldering to clean oxidation from metal surfaces and improve solder flow. For most electronics repair and assembly tasks, no additional flux is needed, though extra flux paste can be added for particularly stubborn or oxidised joints.\"}}, {\"@type\": \"Question\", \"name\": \"Is this solder wire safe to use indoors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — this lead-free solder wire is formulated to produce less smoke and fewer fumes compared to leaded solder. However, it is always best practice to solder in a well-ventilated area or use a fume extractor, especially during prolonged use. The absence of lead significantly reduces the risk of toxic fume exposure.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"0.8mm","offer_id":47718344523881,"sku":"200096263:200007693","price":26.29,"currency_code":"USD","in_stock":true},{"title":"1.0mm","offer_id":47718344556649,"sku":"200096263:200007899","price":26.36,"currency_code":"USD","in_stock":true},{"title":"0.5mm","offer_id":47718344589417,"sku":"200096263:200007694","price":26.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sa5a4a05f6aec40d28f75588365e35b19B_ce30552b-4662-4949-9110-1ed6920434e4.webp?v=1782268454","url":"https:\/\/oasis-select.com\/products\/lead-free-solder-wire-sn99-3-cu0-7-flux-core-reel-50g-1","provider":"Oasis Select","version":"1.0","type":"link"}