LF2420NP-452

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Common mode chokes, also known as common mode filters, are used for suppression of disturbances in power supplies, a major factor that can lead to unwanted electromagnetic interference (EMI). The LF2420NP-452 common mode choke is a small form factor device capable of handling a maximum current of 4.0 A. It is a three line filter, meaning that it has the ability to filter out common mode noise on its three power lines, allowing for interference free operation.

The LF2420NP-452 is primarily designed for general purpose board level applications that require low leakage current and low cost components. It is commonly used in applications that require noise suppression, such as on-board switching power supplies. This common mode choke can also be used in many other applications, such as equipment powered by automotive electrical systems, battery powered equipment, or electronic control units.

At the heart of the LF2420NP-452 is an inductor winded around a magnetic core. This core helps to concentrate the field of the magnetic flux and increase the inductance value. This allows for a higher current range than would be available with unshielded inductors of the same size. The core also helps to reduce losses in the winding due to the effect of leakage flux. This design allows it to achieve high noise suppression performance.

To work effectively, the LF2420NP-452 needs to be correctly connected to the board it is being used on. For optimal noise suppression, the filters should be connected as close to the source of the noise as possible. This ensures that the inductance is as effective in reducing the noise as possible. Additionally, the lines should be connected in the same direction, with a defined connection order between different components. This helps to ensure that the current is drawn in each line is the same, as this allows for even current distribution and helps to reduce noise.

A major advantage of using the LF2420NP-452 is its size. The device is small enough to be included in even the most compact of designs, making it ideal for applications requiring small footprints. This, combined with its low cost and high current rating, makes it ideal for mass production applications. The LF2420NP-452 also benefits from good thermal performance, thanks to its low effective resistance per winding.

In summary, the LF2420NP-452 is an ideal choice for applications requiring common mode filtering. Its small size, heat dissipation capabilities and high current ratings make it suitable for even the most demanding environments. Its affordable price and high noise suppression capabilities make it a popular choice for many applications.

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