--- product_id: 207109447 title: "MAG FT-140-43 Ferrite Toroid Core" brand: "mag" price: "S/.57" currency: PEN in_stock: true reviews_count: 8 category: "Mag" url: https://www.desertcart.pe/products/207109447-mag-ft-140-43-ferrite-toroid-core store_origin: PE region: Peru --- # 1.4 inch outer diameter precision sizing 850 permeability for superior EMI/RFI suppression 885 AL value @10KHz for optimal inductance MAG FT-140-43 Ferrite Toroid Core **Brand:** mag **Price:** S/.57 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your signal game with MAG FT-140-43 — the core of flawless connectivity! ## Quick Answers - **What is this?** MAG FT-140-43 Ferrite Toroid Core by mag - **How much does it cost?** S/.57 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/207109447-mag-ft-140-43-ferrite-toroid-core) ## Best For - mag enthusiasts ## Why This Product - Trusted mag brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** Top-rated with 4.6 stars and proven success as a 9:1 Unun core material—join the expert community. - • **Next-Level EMI/RFI Defense:** Suppress interference from 20 MHz to 250 MHz with industry-leading 43 material. - • **High-Performance Inductance:** AL value of 885 ± 25% ensures consistent, reliable signal filtering. - • **Durable Continuous Operation:** Built to last with solid ferrite core designed for nonstop commercial and residential use. - • **Precision Engineered Dimensions:** Perfectly sized 1.4" OD and 0.9" ID for seamless integration in your custom builds. ## Overview The MAG FT-140-43 Ferrite Toroid Core is a precision-engineered ferrite core designed for effective EMI/RFI suppression in the 20 MHz to 250 MHz frequency range. Featuring an 850 permeability and an AL value of 885 at 10KHz, it offers high inductance performance in a compact 1.4-inch outer diameter form factor. Ideal for continuous commercial and residential applications, this core is highly rated for quality and reliability, making it a preferred choice for professionals building 9:1 Unun transformers and other RF components. ## Description 43 Material is used for EMI/RFI suppression in the 20 MHz to 250 MHz range. Permeability: 850 Outer Diameter: 1.400 / 35.60 ± 0.80 mm Inner Diameter: 0.905 / 23 ± 0.60 mm Height: 0.500 / 12.7 ± 0.85 mm AL Value @10KHz: 885 ± 25% Review: Works well as 9:1 Unun core material - Solid ferrite core used in winding my 9:1 Unun. I have bought several of these in the past, and are very happy with them . Recommended. Review: Good toroid core. - Good quality toroid core. Arrived well packaged in one piece ## Features - FT-140-43 - FT140-43 - K Material - OEM - Ferrite Toroid Core ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B085PYPLZD | | Best Sellers Rank | #99,026 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #32 in Electronic Ferrites #666 in Dehumidifiers | | Brand Name | MAG | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (138) | | Floor Area | 1500 Square Feet | | Included Components | Power Cord, Filter | | Item Dimensions D x W x H | 5.51"D x 6.69"W x 9.84"H | | Item Weight | 0.04 Kilograms | | Manufacturer | MAG | | Material | ferrite | | Model Name | FT-140-43 | | Model Number | FT-140-43 | | Operation Mode | Continuous | | Other Special Features of the Product | Unique Ferrite Core, Continuous Operation | | Part Number | FT-140-43 | | Recommended Uses For Product | Commercial, Residential | | UPC | 793066445747 | ## Product Details - **Brand:** MAG - **Color:** Black - **Floor Area:** 1500 Square Feet - **Included Components:** Power Cord, Filter - **Item Weight:** 0.04 Kilograms - **Material:** ferrite - **Model Name:** FT-140-43 - **Product Dimensions:** 5.51"D x 6.69"W x 9.84"H - **Recommended Uses For Product:** Commercial, Residential - **Special Feature:** Unique Ferrite Core, Continuous Operation ## Images ![MAG FT-140-43 Ferrite Toroid Core - Image 1](https://m.media-amazon.com/images/I/21cbGTFHTVL.jpg) ## Questions & Answers **Q: Are these powder cores?** A: Ferrite cores in inductors and transformers are made from iron oxides, and are combined with zinc, nickel, and manganese compounds. They have very low electrical conductivity, so eddy currents are small allowing efficient operation at higher frequencies. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well as 9:1 Unun core material *by A***E on January 4, 2025* Solid ferrite core used in winding my 9:1 Unun. I have bought several of these in the past, and are very happy with them . Recommended. ### ⭐⭐⭐⭐⭐ Good toroid core. *by A***R on August 15, 2025* Good quality toroid core. Arrived well packaged in one piece ### ⭐⭐⭐⭐⭐ Works good *by W***T on March 10, 2025* Worked good to make a balun ## Frequently Bought Together - MAG FT-140-43 Ferrite Toroid Core - FT-240-43 FT240-43 Ferrite Toroid Core 43 Material - BNTECHGO 16 AWG Magnet Wire - Enameled Copper Wire - Enameled Magnet Winding Wire - 4 oz - 0.0492" Diameter 1 Spool Coil Red Temperature Rating 155℃ Widely Used for Transformers Inductors --- ## 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.pe/products/207109447-mag-ft-140-43-ferrite-toroid-core](https://www.desertcart.pe/products/207109447-mag-ft-140-43-ferrite-toroid-core) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-04-23*