--- product_id: 380933251 title: "1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40" brand: "hondark" price: "306.64 DT" currency: TND in_stock: true reviews_count: 5 category: "Hondark" url: https://www.desertcart.tn/products/380933251-1ea-85x55x20mm-ultra-large-transformer-ferrite-core-3-3x2-2x0 store_origin: TN region: Tunisia --- # 1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40 **Brand:** hondark **Price:** 306.64 DT **Availability:** ✅ In Stock ## Quick Answers - **What is this?** 1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40 by hondark - **How much does it cost?** 306.64 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/380933251-1ea-85x55x20mm-ultra-large-transformer-ferrite-core-3-3x2-2x0) ## Best For - hondark enthusiasts ## Why This Product - Trusted hondark brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Review: Easy to use RF Choke - Was having issues with my 40m Hamstick giving feedback to my car's speakers (even with the car off) so I bought this RF choke, wrapped my Hamstick base's coax around it about 8 times and, voila, the RF feedback is gone. Review: Works like a charm - We installed led lights in our meeting room at church which cause the remote control for our projector to be almost unusable (we had to turn off the lights nearest the projector and still it only worked 50% of the time from 6 ft). After installing this we can use the remote with all the lights on and there no problem. We could use the remote from up to 20 ft from the projector with out a hitch. To install just run your power cord of your device though the center and wrap it around the toroid twice. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PDMWN57 | | Best Sellers Rank | #210,310 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #643 in Power Transformers (Industrial & Scientific) | | Brand | Hondark | | Brand Name | Hondark | | Customer Reviews | 4.4 out of 5 stars 76 Reviews | | Item Dimensions D x W x H | 2D x 5.5W x 2H Centimeters | | Item Weight | 0.33 Kilograms | | Manufacturer | Hondark HK Limited | | Minimum Frequency | 50 Hz | | Model Number | T85X55X20 | | Mounting Type | PCB Mount | | Part Number | 832 | | Power Source | AC mains | | Power Source Type | AC mains | | Product Dimensions | 2D x 5.5W x 2H Centimeters | | Specification Met | EMI | | UPC | 303621183757 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Hondark - **Power Source:** Ac Mains - **Product Dimensions:** 0.79"D x 2.17"W x 0.79"H - **Mounting Type:** PCB Mount - **Specification Met:** RoHS ## Images ![1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40 - Image 1](https://m.media-amazon.com/images/I/51oo+94wn3L.jpg) ![1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40 - Image 2](https://m.media-amazon.com/images/I/51fGGJELO-L.jpg) ![1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40 - Image 3](https://m.media-amazon.com/images/I/51GrLHJZq5L.jpg) ![1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40 - Image 4](https://m.media-amazon.com/images/I/51KJR1IYs5L.jpg) ![1ea 85X55X20mm Ultra Large Transformer ferrite core 3.3''X2.2''X0.8'' Isolator Inductor ferrite Ring Cable Wires EMI Filter ferrite RF Choke ferrite Bead MnZn PC40 - Image 5](https://m.media-amazon.com/images/I/61X+WjNZfXL.jpg) ## Questions & Answers **Q: is it toroidal? or ring?** A: IIt is a toroid core **Q: Do you have a spec sheet for this item? in particular i would like to know the bsat, al and ae of this toriod. thanks.** A: exist concerned data ,if you need the complete datasheet ,have to send you next Monday . ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to use RF Choke *by M***R on 26 December 2024* Was having issues with my 40m Hamstick giving feedback to my car's speakers (even with the car off) so I bought this RF choke, wrapped my Hamstick base's coax around it about 8 times and, voila, the RF feedback is gone. ### ⭐⭐⭐⭐⭐ Works like a charm *by J***R on 7 November 2022* We installed led lights in our meeting room at church which cause the remote control for our projector to be almost unusable (we had to turn off the lights nearest the projector and still it only worked 50% of the time from 6 ft). After installing this we can use the remote with all the lights on and there no problem. We could use the remote from up to 20 ft from the projector with out a hitch. To install just run your power cord of your device though the center and wrap it around the toroid twice. ### ⭐⭐⭐⭐⭐ Largest Ferrite Ring I found *by A***O on 10 April 2024* The price was great and the size was the biggest I could find. I bought them to use in an electromagnetic experiment. I am very happy with them. ## Frequently Bought Together - 1ea 85X55X20mm Toroidal Transformer Core 3.3X2.2X0.8 inch Toroid Inductor Ferrite Core Filter Ferrite Ring Chokes Ferrite Bead MnZn PC40 - 1ea 118X80X20mm 4.6X3.15X0.8inch Toroidal Transformer Core Toroid Ferrite Core Ferrite Chokes Ferrite Bead Ferrite Snap MnZn PC40 - Taigoehua 5pcs 42X24X16mm Toroid Core,Ferrite Rings Toroid Core Iron (Black) --- ## 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.tn/products/380933251-1ea-85x55x20mm-ultra-large-transformer-ferrite-core-3-3x2-2x0](https://www.desertcart.tn/products/380933251-1ea-85x55x20mm-ultra-large-transformer-ferrite-core-3-3x2-2x0) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-08*