B82796C2225N265

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Common Mode Chokes (CMCs) are devices used to control the electromagnetic emission of moder voltage signals. They are available in a variety of configurations and terminations, ranging from single-ended to differential types, from discreet components to complete integrated modules. This article will examine one such component, a B82796C2225N265, its application field and working principle.

Application field

The B82796C2225N265 is a common mode choke module with a three-legged IEC 60320-2-50 receptacle and a rated current of 5A. The core type is EJ1A24, and the frequency range is 40kHz to 400kHz. The nominal inductance of the choke is 2225uH in a 35°C ambient temperature. The unit measures 34.6mm in length, with a diameter of 24.5mm.

The B82796C2225N265 is designed to provide effective and reliable suppression of common-mode currents at high frequencies, reducing both electrical interference and radiation within a system. It is suitable for a wide range of inverters, motor controllers, switching power systems, battery chargers, and other power related applications.

Working principle

The basic principle of common mode chokes is that of a magnetic core that is wrapped with two single-ended windings that share the same magnetic core. The choke reduces the capacitive coupling of common-mode currents at high frequencies, as the two windings are connected in series with each other. This means that the impedance of the winding is inversely proportional to the frequency.

The B82796C2225N265 CMC is designed to provide a high leakage field cancellation factor to effectively reduce common-mode electromechanical interference. This is achieved by connecting the two windings together with a special winding arrangement, which creates two extended sinusoidal waves on each winding section. This allows for a more powerful magnetic field, reducing the level of electric field strength across the component.

In addition, the choke also features an extra large-sized single turn air-gap, which reduces the common-mode current flow and improves the overall voltage stability of the system. This further suppresses the emission of high-frequency signals, allowing for cleaner operating conditions.

The B82796C2225N265 CMC is an ideal choice for applications that require effective common-mode suppression, high-frequency operation, and reliable performance.

Conclusion

The B82796C2225N265 CMC is a highly effective and reliable suppression unit for common-mode currents at high frequencies. It is suitable for a variety of power related applications, such as inverters, motor controllers, switching power supplies, and battery chargers. The unit is designed to reduce both electrical interference and radiation, while providing a high leakage field cancellation factor. The CMC features an extra large-sized single turn air-gap for improved voltage stability and low-frequency noise reduction. Thus, making the B82796C2225N265 an ideal choice for users requiring a robust common mode noise control solution.

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