FT50-43 Ferrite Toroid – Fair Rite

Model Number	FT50-43
Manufacturer	FAIR-RITE

Model Number

FT50-43

Manufacturer

FAIR-RITE

FT50-43 Ferrite Toroid Core

Material: Type 43 | Outer Diameter: 12.7 mm | Manufacturer Grade: Industry Standard

The FT50-43 is a Type 43 mix ferrite toroidal core, widely used in RF and EMI suppression applications. It is specifically designed for low- to mid-frequency broadband use, including RF transformers, baluns, chokes, and EMI/RFI filtering in the 1 MHz to 50 MHz range.

Its small size, stable characteristics, and reliable magnetic properties make it ideal for compact and portable RF applications, especially in amateur radio, HF antenna systems, and low-power RF circuits.

✅ Key Features:

1. Type 43 Ferrite Material

A high-permeability manganese-zinc ferrite material optimized for RF broadband transformers and common-mode chokes.
Best suited for operation in the 1–50 MHz range, with high impedance over HF bands.

2. Compact and Versatile

Small 12.7 mm (0.5 inch) outer diameter makes the FT50-43 ideal for use in QRP (low power) antenna baluns, RF transformers, EMI filters, and circuit board applications.

3. High Impedance for Choking

Offers effective suppression of common-mode currents and RF noise on small cables and wires.
Excellent performance for isolating antenna feedpoints, small power supplies, or portable systems.

4. Stable Frequency Response

High-frequency response and predictable impedance curves allow reliable use in sensitive circuits and precision RF designs.

Typical Applications:

QRP 1:1 or 4:1 Baluns (End-fed, Dipole, Loop antennas)
EMI/RFI suppression on audio, DC, or RF lines
Broadband transformers in small signal circuits
RF filters and low-power impedance matching networks
Portable / Field Deployable Antenna Systems

Weight	0.02 kg
Dimensions	10 × 10 × 10 cm

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