SU9VD-07040

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Common Mode Chokes (CMCs) are useful electronic components designed for applications such as power line filtering, signal conditioning, and noise protection. The SU9VD-07040 is a high-performance CMC manufactured by Stackpole Electronics, Inc. (SEI). This article discusses the application field and working principle of the SU9VD-07040.

The SU9VD-07040 is ideal for suppressing common mode interference in a variety of applications, including EMI/EMC, automotive, audio/video, and communications systems. It is a surface-mount device (SMD) that measures 0.9 x 0.5 x 0.4 inches and offers respectable performance for its small size. The SU9VD-07040 is rated for voltage ratings of 10, 20, 30, and 40A and features a single-wrap configuration. It boasts high impedance, high current handling capability, low insertion loss, and effective noise suppression.

The operation of the SU9VD-07040 is based on the principle of magnetic field cancellation. The device comprises two coils wound on a ferrite core with the same number of turns but in the opposite direction. The coils oppose each other, such that the magnetic fields produced by the windings are out of phase and cancel each other out. Any signals passing through the chokes are attenuated to a degree, thus suppressing EMI and other forms of noise.

The SU9VD-07040 is designed to operate in the kHz to MHz range, making it suitable for noise suppression in high-frequency applications. It is also able to attenuate common mode noise across a continual frequency range. The device can also be used in applications requiring a DC offset, as it can attenuate common mode noise while allowing an off-center DC signal to pass through.

In addition to its exceptional performance, the SU9VD-07040 has several features that make it an ideal component for a variety of applications. It is highly reliable and has a long service life, making it suitable for continuous operation under high temperatures. It also boasts excellent thermal stability, allowing it to maintain its electrical performance even when exposed to extreme temperatures. What’s more, the core and windings of the chokes are insulated from each other, ensuring high insulation performance and safety.

In conclusion, the SU9VD-07040 is a high-performance CMC from Stackpole Electronics, Inc. It is suitable for a wide range of applications and offers excellent performance in noise suppression and signal conditioning. The device is highly reliable, has a long service life, and features high impedance, high current handling capability, low insertion loss, and thermal stability. All these features make the SU9VD-07040 an ideal choice for a variety of applications.

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