---
product_id: 585847621
title: "Amidon FT-240-43 FT240-43 Ferrite Toroid Core 43 Material"
brand: "amidon"
price: "$U3936"
currency: UYU
in_stock: true
category: "Amidon"
url: https://www.desertcart.uy/products/585847621-amidon-ft-240-43-ft240-43-ferrite-toroid-core-43
store_origin: UY
region: Uruguay
---

# Wide frequency range 5-500 MHz 2.4 inch OD precision High AL value 1075 ±20% Amidon FT-240-43 FT240-43 Ferrite Toroid Core 43 Material

**Brand:** amidon
**Price:** $U3936
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your circuits with precision and speed!

## Quick Answers

- **What is this?** Amidon FT-240-43 FT240-43 Ferrite Toroid Core 43 Material by amidon
- **How much does it cost?** $U3936 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/585847621-amidon-ft-240-43-ft240-43-ferrite-toroid-core-43)

## Best For

- amidon enthusiasts

## Why This Product

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

## Key Features

- • **Fast USA Shipping:** Ships quickly from California to keep your projects on schedule
- • **Robust Ferrite Material:** Material 43 optimized for RFI suppression and power transformer efficiency
- • **High Magnetic Permeability:** AL value of 1075 ±20% ensures efficient inductance and minimal losses
- • **Precision Engineered Dimensions:** 2.4 inch outer diameter with tight tolerances for consistent performance
- • **Versatile Frequency Compatibility:** Operates seamlessly from 0.5 MHz up to 500 MHz for diverse applications

## Overview

The Amidon FT-240-43 Ferrite Toroid Core is a 2.4-inch diameter, high-permeability core designed for wideband transformers, power transformers, and RFI suppression across 0.5 to 500 MHz. With a high AL value of 1075 ±20%, it delivers reliable inductance performance. Precision manufactured and shipped fast from California, it’s the go-to choice for professionals demanding quality and efficiency in passive circuit components.

## Description

1 x FT-240-43 | FT240-43 Ferrite Toroid Core OD(A) = 2.40 in / 61.0 mm +/- 1.30 mm ID(B) = 1.40 in / 35.55 mm +/- 0.85 mm Ht(C) = 0.50 in / 12.7 mm +/- 0.50 mmAL=1075 +/- 20 % uH=(AL*Turns2)/1000 Actual measured AL using 10 turns #28 wire Application Freq Range Wideband Transformers 5 - 400 MHz Power Transformers 0.5 - 30 MHz RFI Suppression 5 - 500 MHz Ships Fast from California, USA

## Features

- FT-240-43
- FT240-43
- Amidon
- Ferrite Toroid Core
- Large Toroid Core 2.4 inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Y6NQRGF |
| ASIN  | B07Y6NQRGF |
| Batteries Included? | No |
| Batteries Required? | No |
| Date First Available | 3 March 2023 |
| Date First Available  | 3 March 2023 |
| Item Package Quantity | 1 |
| Item Weight | 118 g |
| Manufacturer | Amidon |
| Manufacturer  | Amidon |
| Manufacturer reference | FT-240-43 |
| Manufacturer reference  | FT-240-43 |
| Measurement System | English |
| Package Dimensions | 10.21 x 6.6 x 1.7 cm; 118 g |
| Package Dimensions  | 10.21 x 6.6 x 1.7 cm; 118 g |
| Part number | FT-240-43 |

## Images

![Amidon FT-240-43 FT240-43 Ferrite Toroid Core 43 Material - Image 1](https://m.media-amazon.com/images/I/31kaTAxchqL.jpg)
![Amidon FT-240-43 FT240-43 Ferrite Toroid Core 43 Material - Image 2](https://m.media-amazon.com/images/I/31pD3iabY0L.jpg)
![Amidon FT-240-43 FT240-43 Ferrite Toroid Core 43 Material - Image 3](https://m.media-amazon.com/images/I/21eTMRmSE6L.jpg)
![Amidon FT-240-43 FT240-43 Ferrite Toroid Core 43 Material - Image 4](https://m.media-amazon.com/images/I/81AqQXEUpeL.jpg)

## Questions & Answers

**Q: Are the north and south poles, axially (top and bottom) or diametrically (side to side)?**
A: Your question indicates that you assume this product is a magnet.  This product is not a magnet.  It is a ferrite core used to construct impedance matching transformers by winding wires repeatedly through the center and tightly wrapped around the edges of core.

**Q: works for dash cam radio interference???**
A: You can use the clip on type for that as well. Get good ones, not unknown cheap chinese.

**Q: Would this help with noise on AM radio? Wrap the antenna wire around and through this?**
A: If the antenna wire is just that a wire then you will only decrease the signal and the noise.  Find the source of the noise.  LED lights, wall plug-in power sources, or other electrical appliances.  If you find the source then maybe using  snap on ferrite cores.  They see these on Amazon also.  I found a source for my AM noise was a power supply for a blue tooth adapter I had.  After unplugging this the noise went away.  If you shield the antenna as using coax and running an outside antenna wire to get away from the noise that might work also, but that depending where you live might not be possible.

**Q: what is the dimater of the inner hole?**
A: I don't have an ID micrometer handy but an eyeball guess with a desk ruler is about 1 3/8 inch. If you need something more precise or in metric, I can figure that tomorrow.

## Frequently Bought Together

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

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-20*