Top 10 Best toroid core in 2026

Main highlights

• •Mix 31 Ferrite Material Manufactured by Fair-Rite Optimized for EMI suppression from 1 MHz to 300 MHz—ideal for HF/VHF/UHF applications.
• •Large Core Size (FT-240) 2.4" outer diameter allows multiple turns of RG-8, RG-213, or similar coax for high-impedance chokes.
• •Versatile Applications Perfect for ham radio, SDR setups, power line filtering, and DIY RF projects
• •High Permeability & Low Loss Delivers effective common-mode current suppression with minimal signal degradation.
• •Durable & Reliable Solid ferrite construction ensures long-term stability and consistent performance.
• •Packaged for Protection Ships securely to prevent chipping or cracking during transit.

Main highlights

Main highlights

Main highlights

• •Ferrite Rings Toroid core Iron（（If you find a broken core, please contact us））
• •Package Content: 5pcs x Ferrite Ring Toroid core iron（ DS400060）
• •Color: Black
• •Size: 42 X 24 X 16mm/1.7X0.94X0.6inch
• •Widely Used：Variety of Data Cables, e.g. USB Cables, Telephone Lines, Aerial Feed, Satellite Cables, Network Cables to Shield from External Electromagnetic Interference;Reduce Electro-magnetic Interference and Improve Signal Integrity

Main highlights

Main highlights

• •Color: Green Material: Nickel-zinc ferrites Size: 20 x 10 x 7mm/0.79 x 0.39 x 0.28 inch (OD*ID*H) Packing List: 20 Pcs x Ferrite Toroid Core
• •Advantage: The annular structure is formed by the use of nickel-zinc ferrite in the toroid core, which is wear-resistant and has a long service life. Capable of working in high-frequency currents, allowing useful signals to pass through normally and filtering out interference from radio signals.
• •Instruction: Used to suppress electromagnetic emissions by blocking low-frequency noise and absorbing high-frequency noise, avoiding interference. Widely used in EMI/RFI filters, audio transformers, communications, control circuit equipment, LED lighting, automotive electronics, industrial control, etc.
• •Ferrite toroid core is a commonly used anti-interference component in electronic circuits, which has a good anti-interference effect on high-frequency noise. and the ferrite rings are made of nickel-zinc ferrites. The Toroid core is used for data cables, audio transformers, communications, control circuit equipment, etc.
• •NOTE: The more the number of coiled cables, the better the effect of suppressing interference with lower frequencies, the weaker the effect of suppressing noise with higher frequencies.

Main highlights

• •Product Name : Ferrite Core;Material : Metal
• •Color : Green
• •Overall Size : 22 x 14 x 8mm/ 0.87" x 0.55" x 0.31" (Outside Dia.*Inner Dia.*T)
• •Net Weight : 86g
• •Package Content : 10 x Toroid Ferrite Core

Main highlights

• •High-end Specification Ferrite Toroid Core Replacement for Amidon FT-240-43 or Fair-Rite 5943003801.
• •Best used within ~25 kHz to 250 MHz. Common use for precision RF, chokes, baluns, ununs, HAM radio antenna, tuned bandpass filters
• •This NiZn is for suppression of conducted EMI. 43 material is also used for inductive applications such as high frequency common-mode chokes.
• •Excellent for taming RFI issues, EMI suppression, Common Mode Chokes, Impedance Matching, Reducing Signal Loss, Increasing Clarity, Noise Reduction, HAM, CB Radio
• •2.4 inch Outer Diameter Width / 1.4 inch Inner Diameter Width / .5" Thickness Depth

Main highlights

• •Product Name: Ferrite Cores; Material: Ferroferric Oxide; Model: T44-26
• •Inner Diameter: 5.5mm / 0.22"; Outer Diameter: 11.6mm / 0.46"; Height: 4.4mm / 0.17"; Total Size: 4.4 x 11.6mm / 0.17" x 0.46" (H*D); Size: 50pcs 5.5 x 11.6 x 4.4mm
• •It has the characteristics of isolating eddy current, low permeability and restraining interference.
• •Color: Yellow, White; Net Weight: 107g; Package Content: 50(+/-2%)pcs x Ferrite Ring Toroid core iron
• •Used widely in power transformers, current transducers, instrument transformers, inductors, chokes, ballasts, voltage stabilizers and regulators, welding transformers, broad band transformers, filters, etc.