28B0125-000

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Ferrite Cores - Cables and Wiring

Ferrite cores are commonly used in cables and wiring. These specialized cores are often used to establish and maintain a consistent electromagnetic interface within the cable, allowing for efficient energy transfer. More specifically, the 28B0125-000 ferrite core functions as a "looping" device, and is most often applied in the intermediate and high frequency range (3kHz to 600MHz).

It is primarily used for the suppression of conducted and radiated emissions, and as such is utilized in cables and wiring for a variety of commercial and military applications. In addition, the ferrite core features low insertion loss, allowing it to be used for broadband applications.

The ferrite core process begins with the manufacturer preparing a ferrite body, which is composed of several components. First, the oxide powder is combined with binder additives and combined to form a slurry. This material is then put through a die press or injection-shaped before being dried and fired. The core is then tested to determine circuit parameters like Q, permeability, resistance, and inductance.

The core is then tested for insertion loss characteristics by comparing the input and output of the circuit. After being verified, coils are wound around the outside of the core, creating an inductive loop. The loop serves to filter out high frequency signals, so that only signals within the desired frequency range can pass. This facilitates the connection of the input and output of the circuit, allowing for efficient energy transfer.

The 28B0125-000 ferrite core has various applications in the transmission of data. These include audio/video cabling, printed circuit boards, telecommunications, and signal transmission. The core can also be used for balancing the electrical signal, negating the effects of electrode polarization to eliminate ground loops.

Ferrite cores are also used in the EMC (electromagnetic compatibility) of cables and wiring. Through the core, the EMI (electromagnetic interference) of a cable or wire can be effectively suppressed, thus ensuring that transmission of data between two or more devices is easier and more reliable. Additionally, the ferrite core can be used to reduce the impact of common-mode interference, which is a form of distortion caused by a combination of signals traveling on the same path.

The 28B0125-000 ferrite core provides an efficient and reliable way to mitigate the electromagnetic interference experienced in cable and wiring systems. Its low insertion loss makes it a viable solution for a variety of commercial and military applications, from audio/video cabling to printed circuit boards. Furthermore, the core can be used to suppress common-mode interference, ensure a reliable connection between two or more devices, and provide balanced electrical signals.

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