--- product_id: 30356346 title: "Ultra Large U Shape Power UF86A Transformer Ferrite Core 1 Set" brand: "mostashow" price: "£2.67" currency: GBP in_stock: false reviews_count: 4 url: https://www.desertcart.co.uk/products/30356346-ultra-large-u-shape-power-uf86a-transformer-ferrite-core-1 store_origin: GB region: United Kingdom --- # High-frequency use up to 200kHz Ultra-large 86mm U-shape core MnZn PC40 ferrite material Ultra Large U Shape Power UF86A Transformer Ferrite Core 1 Set **Brand:** mostashow **Price:** £2.67 **Availability:** ❌ Out of Stock ## Summary > ⚡ Power your innovation with the Ultra Large UF86A Core – transform your projects, transform your future! ## Quick Answers - **What is this?** Ultra Large U Shape Power UF86A Transformer Ferrite Core 1 Set by mostashow - **How much does it cost?** £2.67 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/30356346-ultra-large-u-shape-power-uf86a-transformer-ferrite-core-1) ## Best For - mostashow enthusiasts ## Why This Product - Trusted mostashow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **High-Frequency Ready:** Optimized for applications up to 200kHz, perfect for cutting-edge transformer designs. - • **Massive 86mm U-Shape Core:** Engineered for superior magnetic flux and power handling. - • **Protected & Ready to Ship:** Secure packaging with free delivery options to get you started fast. - • **Premium MnZn PC40 Material:** Ensures low core loss and high efficiency in power conversion. - • **Versatile Power Transformer Kit:** Ideal for both professional production and hands-on learning projects. ## Overview The Ultra Large U Shape Power UF86A Transformer Ferrite Core is a robust 86mm MnZn PC40 ferrite core designed for high-frequency transformer applications up to 200kHz. Perfect for professionals and enthusiasts alike, this set offers premium magnetic performance and durability, packaged securely for immediate use in advanced power and isolation transformer projects. ## Description Product description Review: it is a good thing I bought 2 pairs - it is a good thing I bought 2 pairs, one of them was broken when it arrived , have not tested the core yet, not worth the fright to send back. Review: Beautiful Looking Core but no more then a paper weight without a Datasheet!!!! - Product came well protected, and arrived in perfect condition. My only concern is I cannot find a datasheet anywhere on this specific core. I have read over quite a few datasheets searching for this core already and cannot find it. I can find cores similar but nothing with this cores dimensions so the actual flux density and such is a mystery unless you are a true professional and have all the equipment to get this information. But using some basic calculations and using the data from a core of similar size, I actually choose one a tad bit smaller to be on the safe side you can actually build some nice transformers with this. I'm personally using this to learn how to build transformers. This is a beautiful practice core that can work with High and Low Frequencies upto 200kHZ. I'm sure this core is a wonderful production piece as well but without the datasheet it's more like a paperweight. If the seller answers and responds to my question for a datasheet I will change this review and post the datasheet figures here. ## Features - Material: MnZn PC40 - Model:Large power transformer ferrite - Name:UF86A,U shape - Size:86mm*4 round - Package:1 set power transformer ferrite core ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0185XIOZG | | Best Sellers Rank | #1,189,629 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #445 in Isolation Transformers | | Brand | MostaShow | | Brand Name | MostaShow | | Customer Reviews | 4.2 out of 5 stars 6 Reviews | | Manufacturer | MostaShow 制造商 | | Model | Ferrite core | | Power Source | Corded Electric | ## Product Details - **Brand:** MostaShow - **Manufacturer:** MostaShow 制造商 - **Power Source:** Corded Electric ## Images ![Ultra Large U Shape Power UF86A Transformer Ferrite Core 1 Set - Image 1](https://m.media-amazon.com/images/I/31KPjwVM+4L.jpg) ![Ultra Large U Shape Power UF86A Transformer Ferrite Core 1 Set - Image 2](https://m.media-amazon.com/images/I/31NL23i0miL.jpg) ![Ultra Large U Shape Power UF86A Transformer Ferrite Core 1 Set - Image 3](https://m.media-amazon.com/images/I/31MvpIfevnL.jpg) ![Ultra Large U Shape Power UF86A Transformer Ferrite Core 1 Set - Image 4](https://m.media-amazon.com/images/I/31l2lPzxWjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ it is a good thing I bought 2 pairs *by M***E on November 28, 2016* it is a good thing I bought 2 pairs, one of them was broken when it arrived , have not tested the core yet, not worth the fright to send back. ### ⭐⭐⭐ Beautiful Looking Core but no more then a paper weight without a Datasheet!!!! *by D***T on April 5, 2017* Product came well protected, and arrived in perfect condition. My only concern is I cannot find a datasheet anywhere on this specific core. I have read over quite a few datasheets searching for this core already and cannot find it. I can find cores similar but nothing with this cores dimensions so the actual flux density and such is a mystery unless you are a true professional and have all the equipment to get this information. But using some basic calculations and using the data from a core of similar size, I actually choose one a tad bit smaller to be on the safe side you can actually build some nice transformers with this. I'm personally using this to learn how to build transformers. This is a beautiful practice core that can work with High and Low Frequencies upto 200kHZ. I'm sure this core is a wonderful production piece as well but without the datasheet it's more like a paperweight. If the seller answers and responds to my question for a datasheet I will change this review and post the datasheet figures here. ### ⭐⭐⭐⭐⭐ read the lengths, it's a bit small *by R***N on September 4, 2019* I ordered two, they came fine, and seem to work --- ## 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.uk/products/30356346-ultra-large-u-shape-power-uf86a-transformer-ferrite-core-1](https://www.desertcart.co.uk/products/30356346-ultra-large-u-shape-power-uf86a-transformer-ferrite-core-1) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-25*