DLP11SN161SL2L Filters

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Common Mode Chokes

Common mode chokes, also known as common mode inductors or filters, are components often used in electrical and electronic circuits for filtering applications. The typical applications for common mode chokes are signal isolation, voltage noise reduction, and noise mitigation, although they can be used in other applications as well. A common mode choke works by attenuating the common noise components of multiple signals while allowing the desired signal to pass without interruption or corruption. This is in contrast to standard chokes, which control current flow in only one direction.

DLP11SN161SL2L

DLP11SN161SL2L is a common mode choke usually used in signal filtering applications. This choke is manufactured by a company called Murata, and has a specific inductance of 11uH at 40kHz along with an impedance of 1.53 ohms. It has a good component size, which measures only about 9x9x4mm and can fit into a wide variety of applications. This specific type of choke is suitable for filtering common noises between a large variety of signals, such as those found in mobile phones, tablets, laptops, and other portable computing devices.

Working Principle

A common mode choke works by creating a magnetic field with the help of an inductor. The inductor causes the current to flow in the same direction, thus cancelling out any common noise from multiple signals. Since the noise comes from different directions, the current flow in both directions is not cancelled out but is in fact equalised. The common mode choke amplifies the desired signal more than the common noise components. It is often one of the most efficient methods of signal filtering.

Application Field

The main application field of DLP11SN161SL2L is that of signal filtering in portable devices. As the device size is small, it can fit into various portable computing devices, thus allowing for quick installation. Since it has a good impedance rating, low frequency signal levels do not suffer from it. This makes it suitable for use in mobile phone, tablet, and laptop devices.

Apart from that, this common mode choke can also be used in various other applications such as LCD monitors, power supplies, and automotive applications. It can also be used in automotive systems where the low frequency signal noise levels have to be reduced in order to ensure better transmission and reception quality. Thus, this common mode choke is suitable for use in a large variety of portable and automotive applications.

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