---
product_id: 23272770
title: "FT-140-43 Ferrite Toroid Core - Amidon | 43 Material"
brand: "fair-rite"
price: "₹ 1238"
currency: INR
in_stock: true
category: "Fair Rite"
url: https://www.desertcart.in/products/23272770-ft-140-43-ferrite-toroid-core-amidon-43-material
store_origin: IN
region: India
---

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

**Brand:** fair-rite
**Price:** ₹ 1238
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** FT-140-43 Ferrite Toroid Core - Amidon | 43 Material by fair-rite
- **How much does it cost?** ₹ 1238 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/23272770-ft-140-43-ferrite-toroid-core-amidon-43-material)

## 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

## Description

FT-140-43 Ferrite Toroid Core - Amidon | 43 Material: desertcart.com: Industrial & Scientific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0178IABXW |
| Best Sellers Rank | #74,119 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Electronic Ferrites |
| Date First Available | December 23, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.08 ounces |
| Item model number | FT140-43 |
| Manufacturer | FR |
| Product Dimensions | 2 x 1 x 2 inches |

## Images

![FT-140-43 Ferrite Toroid Core - Amidon | 43 Material - Image 1](https://m.media-amazon.com/images/I/61diiIcIasL.jpg)

## Questions & Answers

**Q: How much power will a balun made from an FT140-43 handle?**
A: The maximum power has to do with the permeability of the material and the field strength your coil generates. If you exceed the maximum power, you won't damage the unit, but will incur losses as the ferrite material is saturated and cannot support an increased magnetic field. 

I'm using a single FT140-43 for a 49:1 UNUN (16 gage wire) running at 10 watts max for portable field operations, and it works very well for this application. According to my calculations, it could handle up to 37.5 watts CW or 60 watts SSB. If you need more power, I would recommend stacking two FT140-43s, and you could double the power, i.e. 120 watts SSB / 75 watts CW. If you're looking for even higher power, I would look at using an FT240-43 or FT240-52 core.

**Q: What is the country of origin?**
A: Faur-Rite Brand (the manufacturer) FT140-43 are manufactured in China.

**Q: Where do you put these , on the wire or somewhere else ? I see some say wrapping the wire , do you run it in and out of the ring ?**
A: Yes you run it in and out of the ring as many times as it can.

**Q: Can this be used for long wire unun balun? some sites suggest t-130 hence the question.**
A: Yes. I wrapped mine with #12 antenna wire as a choke between my elevated radials and earth ground. Major improvement to my signal strength. K5AE

## Frequently Bought Together

- FT-140-43 Ferrite Toroid Core - Amidon | 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-240-43 FT240-43 Ferrite Toroid Core 43 Material

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-07-12*