B82522VC8

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Common Mode Chokes are a type of inductor that filters out certain frequency components, usually in the range of 100 kHz to 1MHz. They are used to prevent the parallel conductance of current in power lines, or more generally, to reduce interference or noise. The B82522VC8 is an example of such a device.

The B82522VC8 is an EMI suppression component specifically designed for EMC applications. It is a three-position, multi-tapped, shielded common-mode choke, with five pins. The choke winding is implemented inside a aluminum sheath which reduces any unwanted radiation or susceptance from the environment. The use of an aluminum-sheath allows the device to provide attenuation in much wider range of frequencies.

The B82522VC8 has two primary functions; to act as an absorber of common mode radiation or inductor of common mode noise. In the first mode, the device absorbs and attenuates the common mode EMI radiated by the load, or being conducted along cables. For the second mode, the B82522VC8 can attenuate the common mode noise on cables. Absorbent chokes work by providing a path to ground for any common mode noise. This path will absorb the noise and attenuate it.

The working principle of the B82522VC8 is based on the transformer principle. The choke consists of two windings, the primary winding and the secondary winding. The primary winding is connected between the power line and ground, while the secondary winding is connected between the cable and ground. The primary and secondary windings are connected in series, forming a transformer like circuit.

When the voltage on the power line fluctuates, it creates a magnetic field in the winding. This magnetic field induces a voltage in the secondary winding. This is what is known as transformer action or inductive coupling. The voltage induced in the secondary winding is the noise that is being filtered.

The inductance of the choke is also important in determining the attenuation of the device. The inductance of the device is determined by the relative sizes of the wire, the number of turns, and the voltage on the wire. The larger the inductance, the greater the attenuation provided by the device. This allows the device to provide a greater degree of attenuation for higher frequencies.

The B82522VC8 is designed to be used in a wide range of applications. It can be used in both residential and industrial applications, including power supply units, power distribution boards, and home theater systems. Additionally, it can be used in automotive and medical equipment as well.

In conclusion, the B82522VC8 is an example of a common mode choke designed for EMC applications. It is a three-position, multi-tapped, shielded common-mode choke, with five pins. It works by providing an inductive coupling between the power line and the cable. This allows it to filter out common mode noise in a wide range of frequencies. It is designed for use in both residential and industrial applications.

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