CM3440Z171R-00 Filters

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Common Mode Chokes

The CM3440Z171R-00 is an example of a common mode choke. A common mode choke is a device which attenuates or blocks common mode noise in a circuit, protecting sensitive components from interference. Common mode noise is noise that is common to both the positive and negative signal lines of a circuit. The CM3440Z171R-00 is a ceramic core common mode choke that is designed to process data transmission signals at high speed and low power consumption. Its compact size ensures it is suitable for use on most circuit boards.

Application Field

Common mode chokes are widely used in power supplies, motors, communications networks, low-frequency control systems, and high-frequency signal transmission circuits. The CM3440Z171R-00 is designed for use in point-to-point digital signal transmission systems, as well as optoelectronic coupled transmission lines.

The wide range of possible applications of the CM3440Z171R-00 include audio-related electronics such as amplifiers, tape decks, and sound cards; computer peripheral devices such as network cards, modems, and fax machines; and home appliance components such as washing machines, televisions, and microwaves. The choke is also suitable for use in automobiles, both in entertainment systems as well as in safety-related systems such as airbag monitors.

Working Principle

The CM3440Z171R-00 works using the principle of magnetic coupling, also known as inductive coupling. When the same magnetic field passes through two separate coils, an EMF (electromotive force) is created in each coil due to the effect of induction. This EMF is able to block common mode noise from passing through the choke, preventing it from affecting the rest of the circuit.

The CM3440Z171R-00’s high-performance, ceramic core construction provides excellent attenuation characteristics at high frequencies and a wide operating temperature range from -40°C to +85°C. This ensures the choke can be used in a variety of demanding applications, such as in data transmission and high-speed switching systems.

The CM3440Z171R-00 also offers excellent differential mode attenuation with a low characteristic impedance. These properties make it ideally suited for applications such as circuit protection, audio filtering, radio frequency interference (RFI) shielding, and power line isolation. Thanks to its low magnetic leakage, the CM3440Z171R-00 choke can also be used in audio visual equipment and other noise-sensitive applications.

Conclusion

In conclusion, the CM3440Z171R-00 is an example of a common mode choke and it is suitable for a wide range of applications, from audio-related electronics to high-speed data transmission circuits. It works using the principle of magnetic coupling, creating an EMF in two separate coils to block common mode noise from passing through the choke. The CM3440Z171R-00 has excellent attenuation characteristics at high frequencies and a wide operating temperature range, providing reliable protection and noise attenuation.

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