---
product_id: 503239604
title: "Toroid Core FT240-43 Ferrite"
brand: "fair-rite"
price: "6114 som"
currency: KGS
in_stock: true
url: https://www.desertcart.kg/products/503239604-toroid-core-ft240-43-ferrite
store_origin: KG
region: Kyrgyzstan
---

# High AL value: 1075 ±20% for efficient inductance Precise dimensions: 2.40in OD x 1.40in ID x 0.50in H Wideband frequency range: 5-500 MHz Toroid Core FT240-43 Ferrite

**Brand:** fair-rite
**Price:** 6114 som
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your circuit game with precision and power!

## Quick Answers

- **What is this?** Toroid Core FT240-43 Ferrite by fair-rite
- **How much does it cost?** 6114 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/503239604-toroid-core-ft240-43-ferrite)

## Best For

- fair-rite enthusiasts

## Why This Product

- Trusted fair-rite brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Packaging for Pros:** Cost-effective sourcing ideal for professional projects and scalable production
- • **Robust Ferrite Material:** FT240-43 core designed for superior power handling and minimal losses
- • **High Inductance Efficiency:** AL=1075 ±20% ensures optimal magnetic performance and signal integrity
- • **Wide Frequency Versatility:** Supports 5-500 MHz for transformers and RFI suppression across diverse applications
- • **Precision Engineered Dimensions:** Perfect fit with 2.40-inch outer diameter for seamless integration

## Overview

The Toroid Core FT240-43 Ferrite by Fair-Rite offers a high AL value of 1075 ±20%, optimized for wideband transformers and RFI suppression from 5 to 500 MHz. With precise dimensions (2.40-inch OD, 1.40-inch ID, 0.50-inch height), this robust ferrite core ensures efficient inductance and minimal signal loss, making it a must-have for professional-grade electronic designs.

## Description

Toroid Core FT240-43 Ferrite

## Features

- FT240-43
- Ferrite

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0178IA3XU |
| Best Sellers Rank | 55,142 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 45 in Ferrite Cores |
| Brand | FAIR-RITE |
| Customer Reviews | 4.6 4.6 out of 5 stars (417) |
| Date First Available | 27 Oct. 2015 |
| Item Weight | 118 g |
| Item model number | FT240-43 |
| Manufacturer | FAIR-RITE |
| Manufacturer part number | FT240-43 |
| Product Dimensions | 7.62 x 2.54 x 7.62 cm; 118 g |

## Images

![Toroid Core FT240-43 Ferrite - Image 1](https://m.media-amazon.com/images/I/51tFfQ67bZL.jpg)

## Questions & Answers

**Q: What is the max wattage these are rated for. i want to build an unun for  an end fed antenna that will handle 600 watts. will 1 or more handle amount?**
A: You should use 2 for 600 watts, the highest rating I have seen for only one is 400 watts.  Based on commercial models of end-fed ununs.

**Q: I would like to use this on the 11-meters cb band (26.965 - 27.405) will this help to cut down rf returning to the radio?**
A: how many watts?  4 watts isn’t anything to worry about but 500+ watts certainly would be.  and yes, wound as a 1:1 choke (or they also call them current baluns) it will absolutely lessen common mode current coming back down the coax.
coax coils (mentioned in other responses) are not nearly as effective as a 240-31 ferrite core wrapped as a 1:1 current choke. google “1:1 current balun” or “1:1 current choke” and you will see many examples to guide you.  balun btw simply means balanced and unbalanced and they are used to rectify the impedance mis-match between the antenna and the 50 ohm coaxial cable. that generally involves lowering the high impedance of an antenna (200-3000 ohms depending on design) and even then, it should be referred to as a step down transformer but balun (balanced / unbalanced) has become the default term.

**Q: Will this work to reduce/remove static noise on a regular FM radio produced from cheap led lighting in a garage?**
A: It likely would with a couple of ifs.    It is really large for such a task.  The toroidal core would need to be  placed as close to the LED power source as possible.   Is the FM radio itself close to the LED lighting?

**Q: Will this block interference from a treadmill motor?   Ethernet over powerline is degraded whenever the treadmill is on.**
A: ethernet over power line is destroying the shortwave radio frequencies , you should run a real cat-5/6 cable or use 5gig wireless....
and you would only need type 73 core for anything the treadmill is hashing out on the airwaves.

## Frequently Bought Together

- Toroid Core FT240-43 Ferrite
- Toroid Core FT240-31 Ferrite
- FT-140-43 Ferrite Toroid Core | 43 Material

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-22*