7123-RC

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Common Mode Chokes, also known as Common Mode Filters, are used for applications such as EMI suppression, suppression of Radio Frequency Interference (RFI), and transient voltage reduction or “snubbing”. The most common of them are made of wire wound around a ferrite core, which is a soft magnetic material. The 7123-RC is a type of common mode choke.

The 7123-RC common mode choke is designed to provide a board-level filter solution to reduce EMI and RFI in a wide range of applications. It is an isolated filter with four alternating layers of winding, and each layer has 4 turns. This type of winding provides a low inductance drop along the length of the core while still providing a high rejection rate in the noise frequency range. The 7123-RC is offered in either an open frame package or in a shielded package.

The 7123-RC works on the principle of Electromagnetic Induction. The windings of the choke act as inductors and generate an opposing current when a high frequency signal is flowing through the winding. This opposing current helps to cancel out the interference in the signal and reduce the noise in the system. The 7123-RC also has capacitance across its windings which helps to reduce the high frequency noise, as well as helping to increase the impedance of the choke at high frequencies.

The 7123-RC is used in a variety of electronic applications where an inexpensive, board-mounted filter is required. Common applications include power supplies, medical equipment, computer motherboards, and automotive electronics. The 7123-RC is also well suited for use in switch mode power supplies, DC/DC converters, switching regulators, and other power electronics circuits. This type of filter is also ideal for reducing unwanted EMI/RFI from reaching sensitive audio components.

The 7123-RC is a very effective device for reducing EMI/RFI in a wide variety of applications. It is highly effective in reducing common-mode noise from entering sensitive components, and the four alternating layers of windings provide a low inductance drop and high rejection rate. The capacitance across the windings helps to reduce the high frequency noise as well as improving the impedance. The 7123-RC is a cost effective solution for reducing unwanted EMI/RFI in many electronics applications.

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