ALFT-03A-5

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Common Mode Chokes are an integral component of circuits and systems to reduce the level of common mode interference. ALFT-03A-5 is the model name for a type of Common Mode Choke that is designed to reduce common mode EMI. It is a cost-effective solution for general-purpose EMI shielding applications.

Common Mode Chokes reduce EMI by preventing coupling of electromagnetic radiation in line-to-ground and line-to-line connections. This is done by providing a shield around the wire paths to prevent the electric and magnetic fields from radiating outside the conductors, and thus reduce the amount of electromagnetic interference. This is generally done by increasing the inductance of the circuit. The Common Mode Choke acts as an inductor for common mode signals, and therefore provides a low-impedance path for common mode signals. This allows for the common mode signal current to be absorbed in the inductor, thus reducing the EMI.

The ALFT-03A-5 Common Mode Choke has a rated current of 1000 mA, and a rated impedance of 1500 ohms at 100 kHz. It comes in an axial-leaded, high-temperature SMD package size of 13.7x6.15x6.40 mm. The operating temperature range is -40°C to +105°C. The ALFT-03A-5 has a shielded construction to provide excellent common mode RFI suppression. It is also designed with a Ferrite core material to reduce losses and provide a uniform magnetic field.

The ALFT-03A-5 Common Mode Choke can be used in a variety of applications. One such application is the use of common mode chokes to reduce EMI emissions in mobile phones. By using the ALFT-03A-5, mobile phone designers can reduce EMI to comply with FCC and other standards, and improve quality and reliability. Other applications include the use of common mode chokes in switch-mode power supplies, LCD screens, and medical devices, among others.

The working principle of the ALFT-03A-5 involves the use of a Ferrite core material. This material has a high magnetic permeability, which allows it to absorb common mode signals and reduce levels of EMI. The ALFT-03A-5 utilizes a dual-winding inductor, which is connected in parallel with the main circuit. The inductor is connected to the ground, and acts as an inductor for common mode signals, and provides a low-impedance path for common mode signals, thus reducing EMI levels.

The ALFT-03A-5 Common Mode Choke is an effective solution for reducing EMI levels in a wide variety of applications. Its shielded construction and Ferrite core material provide excellent performance, and its small size and low cost allow for easy integration into various projects. As such, the ALFT-03A-5 is a great choice for general-purpose EMI shielding applications.

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