EMI Ferrite / EMI Ferrite Cores Detail
Ferrite Cores are important for ensuring strong electronic signals through cables in environments where EMI (Electromagnetic Interference) can be a problem.
Filtering is an element of EMC design that suppresses conductive noise in conductors such as cables and IC leads. It attenuates or absorbs noise in unnecessary range while allowing only signals at specified necessary frequencies to pass through. Installing the ferrite cores over the affected cables where the current flows increases the impedance and reduces the propagation of noise current due to the magnetization of the ferrite cores. In general the phenomenon of the magnetization of ferrite cores is the process of converting the noise to negligible heat energy and dissipating it.
Using this the method of filtering noise, ferrite cores, sometimes called “Ferrite Beads,” are placed/clipped onto cables in order to suppress high frequency noise levels in electronic signals. Ferrite cores are among the most inexpensive means to reduce EMI noise in an environment involving preexisting electronic cabling. Some ferrite cores require the cable or wire to be wrapped around 6 or 7 times within the core, which is a method called turning, while other ferrite core products simply snap around an existing wire.
As the pioneer of EMI ferrite core products, KITAGAWA INDUSTRIES America has a wide range of ferrite products.
For cable conducted noise the solutions includes: new ferrite “G-Core” series, which offer environmentally friendly materials with cost efficiency, and lower frequency range (KHz range) ferrite cores such as TRM, TRMH, RFC-MA series.
For CPU, IC emissions, cross-talk issues, RFID malfunctions at 13.56 MHz, or gathering magnetic field for devices with NFC (near field communication) technologies, we offer flexible ferrite sheets and ferrite tiles for excellent performance increases.