Inductors and Ferrites for Use in EMC
Magnetic materials used in inductors and filters have specific functions and purposes. However, knowing which to choose can be confusing.
Use of Ferrites in PCB Reference Planes
Should the reference (i.e., ground) plane be split into two separate sections and a ferrite bead installed between them to prevent unwanted radio frequency emissions? Let’s examine why this practice is not a good idea and should be avoided at all costs.
How Ferrites Are Specified for RF Performance
Ferrites are frequency dependent components used to attenuate unwanted high frequency RF signals that can cause failure of emission and immunity compliance tests. There is an endless variety of form factors for... Read More...
Ferrites to Kill Ringing or Not?
Sometimes a ferrite is used to remove ringing in some applications as in power electronics or digital circuits.
The Effect of DC/LF Current in Ferrites for EMI
Ferrites for EMI suppression are usually chosen looking for high (resistive) impedance at the frequency of interest; but, sometimes, that ferrite is not working as expected. Perhaps you have saturation effects?... Read More...
New Edition Released of IEC 62317-13 Pertaining to Ferrite Cores
The International Electrotechnical Commission has released the second edition of IEC 62317-13:2015 standard. IEC 62317-13:2015 applies to “Ferrite cores - Dimensions - Part 13: PQ-cores for use in power supply ... Read More...
Leader Tech Announces New Ferrite Pricing
Leader Tech announces a new unit pricing structure for its popular line of CE83 ferrites. For the first time, customers now have the option of requesting piece pricing in addition to case quantity volume discou... Read More...
Cables Make Unintended Antennas
One of the most cost-effective ways to eliminate unwanted electromagnetic and radio frequency interference (EMI/RFI) from a cable is to attach a ferrite. Due to their length and primary function, data and power... Read More...
New Low-Cost Ferrites in Stock from Leader Tech
A new line of Ferrites from Leader Tech offers electronics manufacturers an extremely cost-effective alternative for controlling unwanted EMI/RFI interference. The Company’s CE83 material ferrites are available... Read More...
Using Ferrites to Suppress EMI
In our ideal world, safety, quality and performance are paramount. However, the cost of the final component (which includes the ferrite) has in many cases, become the deciding factor. This article is written as an aide for the design engineer looking for alternative ferrite materials as a means to reduce cost.