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Common Mode Chokes

A common mode choke is a passive two-winding electrical component used to suppress common mode noise in electronic circuits. The SSHB21HS-06378 is one type of common mode choke used in a variety of applications. This paper will examine the application field and working principle of the SSHB21HS-06378.

Application Field

The SSHB21HS-06378 is a common mode choke with high-performance and low-resistance. It is often used in automobiles, telecommunications, and electronic equipment and power supplies. It is especially effective in suppressing electromagnetic interference (EMI) and high-frequency pulse noise. It is also used in DC/DC converters, radio-frequency circuits, and data converters.

The SSHB21HS-06378 is capable of suppressing noise from 0 to 1 GHz and offers a high common mode suppression ratio of 11 dB min at 1 MHz, 30 dB at 1 GHz. It is very effective in a wide range of applications including power line communication systems, digital audio/video systems, and industrial network systems.

Working Principle

The SSHB21HS-06378 works by allowing the desired signal to pass through the component while blocking the common mode noise. It does this by taking two separate conductors and winding them around a core material. This creates an inductor, or choke, which blocks the common mode noise. The windowed construction of the SSHB21HS-06378 increases its effectiveness compared to other common mode chokes in suppressing both low- and high-frequency noise.

The SSHB21HS-06378 works by using an arrangement of two separate windings which are winded around a toroidal ferrite core. The windings are arranged in such a way that the induced flux will generate a counter current in one winding which cancels out common mode noise in both wires. This results in both a larger hi-pot rating and better common mode noise suppression. The windowed design reduces stray capacitance between the windings which further increases its effectiveness in suppressing common mode noise.

Conclusion

The SSHB21HS-06378 is a high-performance common mode choke that is used in a variety of applications. It is capable of suppressing common mode noise from 0 to 1 GHz and offers a high common mode suppression ratio. The SSHB21HS-06378 works by taking two separate conductors and winding them around a toroidal core to generate an inductor that blocks the common mode noise. The windowed construction further enhances its noise suppression properties. The SSHB21HS-06378 is a reliable and effective solution for suppressing common mode noise in a variety of applications.

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