B82721A2501N022

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Common Mode Chokes, also known as CM or Common Mode Filters, are used in applications requiring high-frequency noise reduction and EMI (Electromagnetic Interference) suppression. The B82721A2501N022 is a common mode choke designed to attenuate electromagnetic interference (EMI) in single-phase AC circuits. It is a fixed-frequency, fixed-impedance device and consists of a core, core material, primary and secondary winding, wire windings, and a shielding housing.

Application Fields

Common Mode Chokes are now widely used in electrical equipment, such as switchgear, power supplies, IT and automation systems, and air conditioning. The B82721A2501N022 Common Mode Choke is mainly used in systems such as industrial automation, consumer electronics, automotive systems, medical equipments, communications networks, and a range of other AC-powered devices subject to EMI interference, as long as the power supply voltage is within the specified range.

Working Principle

The B82721A2501N022 Common Mode Choke is composed of a core and two windings, one primary winding and one secondary winding. The two windings are connected in series and connected to the power line. The primary winding and the secondary winding are electrically connected through the core. As a result, the operating voltage of the common mode choke is higher than that of the power line, so the electromagnetic noise generated by the power line can be absorbed through the winding capacitance formed by the primary winding and the secondary winding and the inductance of the core.

Whenever current flows through the common mode choke, the core creates a magnetic field which interacts with the primary and secondary winding to reduce common mode noise, while simultaneously allowing the desired signals to travel relatively unimpeded. Through this process, the common mode choke reduces unwanted electromagnetic interference within the system.

Conclusion

The B82721A2501N022 Common Mode Choke is a high-frequency filter designed to effectively reduce electromagnetic interference from power lines so that the signal flow in a power outlet is appropriately protected. This product should be applied to single-phase AC systems as long as the voltage is within the specified range. Any application requiring high-frequency noise reduction and EMI suppression should strongly consider using this product.

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