CM1011-505

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Common Mode Chokes

A Common Mode Choke (CMCh) is a three-terminal inductor device that primarily functions in the differential mode, but may also be used as an EMI suppression device. In this article, we\'ll take a closer look at the CM1011-505 application field, working principle, and other basic parameters.

Application Field of CM1011-505

The CM1011-505 is primarily used for high-speed board interconnections in personal computers, communication equipment, and mobile electronics. Generally, it is best suited for Ethernet connections, as it provides excellent signal integrity with very low EMI noise emissions. The CM1011-505 is also capable of handling higher frequency signals than conventional chokes, making it ideal for high-speed digital circuits.

Apart from digital circuit applications, the CM1011-505 can also be used in power line applications. For power line applications, the CM1011-505 offers high surge current handling capability, low energy loss, and fast response time to transient signals.

Working Principle of CM1011-505

The CM1011-505 is a three-terminal inductor device that operates in differential mode and also serves as an EMI suppression device. The device consists of a series of windings (3W1G) with one side connected to the primary winding and the other side connected to the secondary winding. The primary winding acts as the signal source, while the secondary winding is the output.

The device works by suppressing electromagnetic interference (EMI) from the primary winding, while passing the desired signals through the secondary winding. This is accomplished by the use of a balanced winding between the primary and the ground return of the secondary circuit. The EM energy is then dissipated as heat across the winding.

The device also has the ability to shunt high frequency signals away from the primary and secondary windings. This reduces the interference and noise generated by high frequency signals and thus improving the signal transmission quality.

Basic Parameters of CM1011-505

The basic parameters of the CM1011-505 include its rated current, rated voltage, and rated frequency range. The rated current of the device is 3 amperes, the rated voltage is 50 VDC, and the rated frequency range is up to 200 MHz. Additionally, the device has a very low DC resistance of 0.07 ohms, making it ideal for applications requiring high-speed data signal transmission.

The device also features a self-shielding construction that helps to reduce stray EMI emission. Additionally, the device offers excellent surge, vibration, and noise suppression. The device is also rated for operation in temperatures ranging from -20°C to 125°C, making it suitable for use in industrial and automotive applications in harsh environments.

Conclusion

The CM1011-505 is an excellent device for high-speed digital circuit applications, as it uses a balanced winding configuration to reduce EMI emission and ensure signal integrity. Additionally, the device also features strong surge current handling capability and is rated for operation in temperatures ranging from -20°C to 125°C. Overall, the CM1011-505 is an ideal choice for any application requiring reliable and high-performance EMI suppression and signal transmission.

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