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Common Mode Chokes: PCMF1USB3B/CZ application field and working principle

Common Mode Chokes (CMCs) are an indispensable part of any electrical interface, providing magnetic shielding and attenuating high frequency noise between electrical conductors. The PCMF1USB3B/CZ is an example of an advanced CMC. This part is rated at 3.3V and offers high accuracy for both common mode and differential mode noise and excellent current withstand up to 20A. It is the ideal solution for USB 3.0 Type B, Type C applications, as well as any other applications requiring excellent common mode and differential mode noise performance.

Introduction to Common Mode Chokes

Common Mode Chokes (CMCs) are commonly used in electrical interface designs as an effective way to block high frequency interference or noise from travelling between 3 or more pins. They work by creating a magnetic field that cancels out or attenuates high frequency noise. CMCs are used in a wide variety of applications, from cables and connectors to audio processing and robotics. In addition to blocking noise, CMCs can also provide EMI shielding and help isolate electrical conductors.

How Common Mode Chokes Work

Common Mode Chokes work by creating a magnetic field that works to reduce or cancel out high frequency noise. The core of the CMC is typically made of a ferrite material, such as a ferrite or iron core, and is usually surrounded by a coil of wire. The coil is wrapped around the ferrite, and when current from the 3 or more pins flows through the coil, a magnetic field is created. This magnetic field helps to reduce and cancel out any noise in the current, allowing it to pass through the CMC without interference.

The PCMF1USB3B/CZ

The PCMF1USB3B/CZ is a Common Mode Choke specifically designed for USB 3.0 Type B and Type C applications. This CMC is rated for 3.3V and is capable of withstanding up to 20A of current. It offers high accuracy for both common mode and differential mode noise, while also providing excellent EMI shielding. This makes it the ideal solution for any USB 3.0 application, as well as other applications that require excellent common mode and differential mode noise performance. In addition, it can also be used in automotive applications, where it can help reduce noise and provide greater noise immunity.

Conclusion

Common Mode Chokes are an important part of any electrical interface design. They help to reduce and cancel out high frequency noise, while also providing EMI shielding and helping to isolate electrical conductors. The PCMF1USB3B/CZ is an advanced CMC specifically designed for USB 3.0 Type B and Type C applications, offering excellent noise performance and current withstand up to 20A. In addition, this CMC can also be used in automotive applications to provide greater noise immunity and reduce EMI issues.