PA3747.805NLT

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Common mode chokes, also referred to as CM chokes, are electronic components used to suppress common-mode current and electromagnetic interference (EMI) in high-frequency circuits. PA3747.805NLT is a suitable common mode choke for many applications. In this article, the application field and working principles of PA3747.805NLT will be discussed.

Application Field of PA3747.805NLT

PA3747.805NLT is a common mode choke designed to operate within a frequency range of 100 MHz to 6 GHz. This component features a rated current of 800mA, an inductance of 32nH, and an impedance of 5 ohms. The choke is available in standard 0603, 0805, and mini-SMD packages, and has a low DC resistance of 0.3 ohms. Due to its wide frequency range and low DC resistance, PA3747.805NLT is suitable for a variety of high-frequency applications, including:

• Hybrid networks
• Communication systems
• Data acquisition systems
• Signal processing circuits
• RFID readers
• Wireless transceivers

Working Principle of PA3747.805NLT

PA3747.805NLT works in the same way as other common mode chokes. It consists of two windings placed in series that are electromagnetically coupled to each other, but are electrically isolated from each other. The two windings are referred to as the primary winding and the secondary winding. When current flows through the primary winding, it induces a voltage in the secondary winding due to the electromagnetic coupling between the two windings. This induced voltage causes a current to flow in the secondary winding, which is in the opposite direction to the primary current. The difference in the directions of the two currents causes a cancellation effect, which reduces common-mode noise and interference.

PA3747.805NLT is designed to operate over a wide frequency range and has an impedance of 5 ohms. This allows it to effectively block a wide range of frequencies, as the impedance of the choke increases with frequency. The high impedance of the choke also acts as a current limiter, as the choke will only allow a certain amount of current to flow.

Conclusion

PA3747.805NLT is a high-frequency common mode choke designed to reject common-mode current and reduce electromagnetic interference in circuits. This component is suitable for a variety of applications due to its wide frequency range and low DC resistance. It works by cancelling out the opposite directions of the current in the primary and secondary windings, which results in a reduction of common-mode noise and interference.

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