CMF23V-683900-B

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Common mode chokes (CMCs) are inductors or filters used to reduce common mode noise, or to provide some electromagnetic compatibility between two conductors. Common mode chokes have been used in many industries for quite some time, with their role in the world of electronics steadily increasing. The CMF23V-683900-B is a common mode choke by Nihon Dempa Kogyo Co. (NDK). This product\'s application fields and working principle make it an incredibly important piece of technology in today\'s electronic and communication industries.

Application Field

The CMF23V-683900-B is a broadband common mode choke designed to reduce common mode interference in high frequency, low impedance signal lines. It is primarily used in digital communications, such as in systems employing LAN connections, CAN bus systems, and HDMI cables. This product is also recommended for use in noise suppression for low voltage motors and power supplies which require high level of safety or high accuracy. Additionally, it is useful for power line signal transmission, EMI protection, and data transmission line noise prevention.

Working Principle

The CMF23V-683900-B is a three-port device. Each port, or terminal, is composed of three pins, forming an X-shaped pattern. Signals are applied to the terminals, with different signals on either side of the device. The core of the choke is then energized by an alternating current. This is used to create a magnetic field which is capable of suppressing the spread of interfering signals. This allows for the transmission of clean signals over the same lines.

The CMF23V-683900-B is composed of a high-quality shielded ferrite core and two inner coils. This combination creates what is known as a balanced magnetic field, which can effectively reject the interference signals as well as the common mode signals. This allows the signals to travel along the line unaffected. The choke is also rated to provide a high level of common mode interference rejection up to high frequencies, such as 40MHz.

The CMF23V-683900-B is designed to be extremely reliable, with an operating temperature range of -40C to +105C. This product is also designed with a robust construction, providing superior noise suppression even in extreme environments.

The CMF23V-683900-B is used for a variety of purposes, primarily to reduce interference in digital signal lines. Its application fields are numerous, and it is a useful tool for many different industries. Its working principle, which relies on the principles of a balanced inductor, makes it an effective tool for reducing noise in signal lines.

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