Videos & Presentations

Published on April 14, 2022
Demystifying Cable Antenna – Can Ferrite Increase Emissions?
Posted By Dr. Min Zhang
In this short video, we showed you that sometimes, when placing a ferrite core on a cable, noise at certain frequency increase. Why is that the case? You will find out!
Published on February 22, 2022
EMI Suppression: Common-Mode vs Differential-Mode
Posted By

A fundamental concept to understand when using ferrites in a suppression application is the mode of the noise that is to be suppressed. In this video, we go over common and differential mode EMI and how ferrites can be used to attenuate them. Featured parts: 0431173951:… 0431167281:…

Published on February 22, 2022
A 1/4 Wavelength Antenna Explained & How to Place Ferrite Cores
Posted By Dr. Min Zhang

Dr. Min Zhang is the founder and principal EMC consultant of Mach One Design Ltd (, a UK-based engineering firm that specializes in EMC consulting, troubleshooting, and training. His in-depth knowledge in power electronics, digital electronics, electric machines, and product design has been benefitting companies worldwide. Zhang can be reached at [email protected].

Published on February 22, 2022
Fair-Rite Products: Signal Solution Kit
Posted By

Follow along with Bruce Sparrow, Product Manager for Suppression Applications, as he explores our flagship kit for Compliance labs- The Signal Solution Kit. The Signal Solution Kit contains our most popular Snap-Its in our 75 material, 31 material, 43/44 material, and 61 material – along with EMC reference guides.…

Published on February 22, 2022
Fair-Rite Products Wallkill Facility Tour
Posted By

Fair-Rite Products welcomes you to take a virtual tour of our Wallkill, NY facility. During this tour you will walk through our production process and see all the fantastic employees that make our company, ‘Your Signal Solution.’ Interested in our process or how we can help source your components, email [email protected]! Music by Joystock –

Published on February 22, 2022
NanoVNA Sorts Unknown Ferrite Suppression Beads
Posted By
Because suppression ferrites aren’t marked, its difficult to know what frequencies they work on. Now you can use the popular NanoVNA along with free software to graph the unknown ferrite’s impedance over frequency.
Published on April 21, 2021
The Case of Rod V Bobbin (Antenna, Inductor, & Choke Cores)
Posted By

Ferrite rods and bobbins make excellent cores for a variety of different applications. These can range from wireless antenna cores (wireless power, Bluetooth, RFID, etc..) to high bias/power inductors, to chokes and many more. In this video we take a brief look at characteristics of the different core types and how they compare to one another.


Antenna/RFID Rods:


Published on March 08, 2021
7 MHz Low Pass Ferrite Filter Build and Test
Posted By
Testing and building a 7MHz low pass filter using ferrite inductors and a tiny spectrum analyzer.
Published on February 17, 2021
High Reliability Testing
Posted By

Here at Fair-Rite Products, We pride ourselves on making all of our cores to an extremely high standard of quality. But, what happens when the best is isn’t quite enough? In this video we take a look some the specialized testing and processes used to ensure reliable operation no matter the application. At Fair-Rite; We’ll go the extra mile so you can go the extra million.

Published on January 11, 2021
Predicting the Performance of Ferrite Suppression Cores
Posted By

Follow along with Fair-Rite Products’ Bruce Sparrow , Product Manager for Suppression Applications, as he explains how different beads work to suppress EMI noise. With an assortment of materials to suppress frequencies from 100 kHz into the GHz range, Fair-Rite has the spectrum covered. You will quickly learn how to identify solutions to attain electromagnetic noise compliance. Watch and learn how Fair Rite Product Corp can be Your Signal Solution®.

Published on October 02, 2020
Inductance Factor Constrained Power Core Comparison
Posted By

Choosing a ferrite for use as a power material is easy right? Pick the lowest loss material at your operating conditions and you’re off to the races. Unfortunately, it isn’t always that simple. In this video we take a look (simplistically) at how adding an air gap can affect our core material selection. Specifically, we are evaluating EQ25 core sets in Fair-Rite’s 67, 80, and 79 materials. All core scenarios have been constrained to roughly the same inductance factor for this testing.

Test Equipment Used: Keysight E4990A Impedance Analyzer, Clarke Hess CH2335A-01 Wideband Power Analyzer


9567250802 as Gapless 67 Material EQ25
9580250802 as .747mm (custom) Gapped 80 Material EQ25
9579250802 as .833mm (custom) Gapped 79 Material EQ25 

Guest Starring:
Fair-Rite Products Wallkill NY Machine Shop as The people making sure I didn’t lose a finger gapping the cores!

Honorable Mention: Mike Arasim as The guy in front of the camera.

Published on July 14, 2020
How to Identify an Unknown Ferrite Rod
Posted By

Follow along with Mike Arasim, Product Manager for Power and Inductive Applications at Fair-Rite Products as he walks through the process of identifying the material of an unknown ferrite rod using some simple test equipment and Fair-Rite’s new Rod Permeability calculator tool.

Link to Paper: “Determining the Material of a Ferrite Material”

Link to the Rod Permeability Calculator tool

Test equipment used: Keysight 1733C LCR Meter. Mitutoyo Absolute Digimatic 6” Caliper. 24AWG solid enamel coated magnet wire.

Published on June 01, 2020
Measuring Balun Performance
Posted By

Follow along with Bruce Sparrow – N2KTV, Product Manager for Suppression Applications at Fair-Rite Products as he demonstrates how to measure balun performance using the MFJ 225 two port vector network analyzer.

For more information on what Fair-Rite Products has to offer check out:

Published on May 15, 2020
How to Identify an Unknown Ferrite Core
Posted By

Do you have a ferrite core, but don’t know what it is? Follow along with Mike Arasim, Product Manager for Power and Inductive Applications at Fair-Rite Products as he identifies two unknown Fair-Rite EMI suppression beads using basic, inexpensive, readily available equipment in a very not temperature controlled environment.

Link to paper on “Determing the Material of a Ferrite Core”

Link to the Toroid Permeability Calculator seen in the video

Test equipment used: Keysight 1733C LCR Meter. Flir DM93 Digital Multimeter. Mitutoyo Absolute Digimatic 6” Caliper. 10 turns of 26awg solid wire.

Starring Fair-Rite P/N 2673002402 as Sample #1

Fair-Rite P/N 2643002402 as Sample #2……

Published on April 06, 2020
How to make a 1:1 Balun your HAM Radio Antenna
Posted By

In this short video we show how to make a 1:1 balun using a Fair-Rite Products Toroid 2631803802 and easy-to-source parts. Watch Bruce Sparrow- N2KTV, Fair-Rite Products Product Manager for Suppression products, as he completes this project. Comment what other “How To” videos you would like to see Fair-Rite Products create! LIKE AND SUBSCRIBE!

Published on January 16, 2020
Effect of Lead Length on Ferrite Impedance
Posted By Mike Arasim

Fair-Rite Products Corp., Your Signal Solution®, In this video we give a brief example of the effect wire length has on rated impedance values of a ferrite EMI suppression device. When characterizing a core, the wire length should be kept to a minimum to give a more accurate representation of the of the actual impedance that will be added to your circuit. For more information check out our website at Comment below if there are any topics you would like to see covered in future videos. Thanks for watching!

Click HERE to check out the paper on the Effect on Lead Length on Ferrite Impedance:

Test equipment used: Keysight (formerly Agilent) E4991A RF impedance analyzer, 16092A test fixture. Osc level = 100mV. Log swept stimulus 1MHz-1GHz, 201 discrete points. Test leads all 26awg solid wire.

Core being tested: Fair-Rite Products shield bead P/N 2643000801:…

Published on April 17, 2019
Design Considerations for High Frequency Magnetic Materials
Posted By John Lynch

In a developing market where miniaturization of designs has become critical, operating frequencies of magnetics have been increasing in order to minimize their size. As a result, engineers have a lot to consider when selecting magnetic components for their designs. Join us with John Lynch, Director of Engineering at Fair-Rite, as he discusses the role of ferrites in power supplies. John’s presentation will address the advantages of ferrites in power supply designs, the important parameters of ferrite materials, the impact of these parameters on performance, guidelines to select your ferrite material, and optimizing configuration based on design limitations.

Published on March 15, 2018
High Frequency Power Magnetics Technology Roadmap
Posted By John Lynch, Director of Engineering

Fair-Rite Products Corp., Your Signal Solution®, introduces a roadmap of their 67, 79, and recently developed 80 materials. Be the first to join John Lynch, Director of Engineering at Fair-Rite, as he leads an informative presentation on the capabilities of the materials while also discussing the effects of size on their overall performance. The recently developed 80 material, in particular, is showcased in the video as the solution to the gap the 67 and 79 materials had previously left in frequency coverage. Fair-Rite is excited to share with you how these three products can empower your design. Please watch our video to learn more.

Published on May 23, 2016
Maintaining Impedance in High-Permeability, Split Core Ferrites for Low-Frequency Applications
Posted By Rachael Parker, Vice President, Fair-Rite Products Corp

Ferrites are ceramic components that can be used to suppress electromagnetic interference (EMI) in certain applications. This presentation will discuss the basic properties of solid round ferrite cores, the impact an air-gap can have on the performance of these cores, and special considerations. In particular, this discussion focuses on the use of high permeability materials, such as Fair-Rite’s 75, in low-frequency suppression applications since its permeability is relatively high compared to other soft ferrites used for this purpose, making the effect of an air-gap much greater.

Published on April 08, 2016
Low Loss 67 Material for High-Frequency Power Applications
Posted By Rachael Parker, Vice President Fair-Rite Products Corp.

This presentation was given at APEC 2016 on Low Loss 67 Material by our Vice President Rachael Parker. Click on the presentation to view.

Would you like the raw data used for the graphs in the presentation?

Click here to download power loss data:

67 Material – B vs Pv at 100C

67 Material – B vs Pv at 25C


Published on August 19, 2015
Basics of Ferrite Beads
Posted By Alan Wolke

This video discusses the basics of ferrite beads and their uses for basic filtering applications. It discusses and demonstrates how ferrites act as resistors at high frequencies and how this is used for EMI/RFI Suppression, improved power supply filtering, parasitic oscillation suppression, and others. The affect of the frequency dependent resistive characteristic of the ferrite beads is demonstrated by showing its effect on a swept RF signal, its effect on the rise/fall time of a digital signal, and its effectiveness of eliminating parasitic oscillation.