ALFT-04-9

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A common mode choke, such as the ALFT-04-9, is a device used in electrical systems to reduce interference and noise. It is commonly used in PCs, video equipment, and other electrical appliances. The ALFT-04-9 is a four-core, filter-type common mode choke. It has a ferrite core wrapped around four wires that act as the circuit\'s inductors, or coils. When the current flows through the wires, it creates a magnetic field around the inductors, which causes the electromagnetic interference (EMI) and noise to be reduced.

The ALFT-04-9 is designed to reduce the common mode (CM) interference and noise found in data and video signals. It works by blocking the CM current in its four wires from flowing to the ground, therefore eliminating the generation of noise. The external magnetic field generated by the ALFT-04-9 then allows the current to flow freely, reducing the amount of EMI. The higher the inductance provided by the choke, the stronger the external magnetic field will be, resulting in more effective noise reduction.

The ALFT-04-9 is designed to be used in applications such as PC systems, video equipment, and LCD displays where reducing EMI noise is crucial. It is also suitable for automotive and home entertainment systems, where the reduction of EMI will improve performance. Additionally, this choke can be used in applications that require low power consumption, because it has lower power consumption than other chokes.

The ALFT-04-9 also has a wide frequency range of 10kHz to 50kHz, making it suitable for applications that require continuous power, such as in UPS systems. Additionally, this choke features a high current rating of 25A, which makes it suitable for applications that require a large amount of current. It has a safety factor of 2 and can withstand temperatures ranging from -20°C to 70°C.

In conclusion, the ALFT-04-9 is an effective common mode choke that is suitable for various applications. It has a wide frequency range, a high current rating, and a low power consumption. Additionally, it is reliable and offers excellent noise reduction performance, making it an ideal choice for those who need to reduce EMI and noise in their electrical systems.

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