DR331-105BE Filters

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Common Mode Chokes are relevant components in technical applications, mainly intended to provide high impedance to any differential mode signals and low impedance to common mode signals.

An example of such a common mode choke is the DR331-105BE, which is a high-performance common-mode choke used in the telecommunications industry, with a frequency range of up to 600 MHz. The choke principle usually involves two transmission lines connected in a balanced circuit containing series inductor coils.

Regarding the application fields of the DR331-105BE, it is used for Ethernet transmission, ADSL, XDSL, internet over power lines, set top boxes, FTTX, optical access, cable modems, on-board power line communication, and as a rf chokes. Moreover, due to its high-frequency performance, it is also suitable for demanding applications such as USB 3.0, HDMI, and DisplayPort high-speed digital interfaces.

When it comes to the working principle of the DR331-105BE, it is based on that of an inductor, essentially consisting of a wire which is wound around a continuous magnetic core. The inductive load of any current running through the wire is increased and the opposite current is decreased, thus allowing for a greater degree of control.

In this context, the DR331-105BE behaves like two inductors connected in series, and the magnetic field created by each inductor is responsible for the choke\'s behavior. The element works by blocking differential mode signals, such as those from radio, while simultaneously allowing the common mode signals to flow unimpeded. The device is also designed to minimize the effect of common mode signals, as most of them are limited to a maximum frequency of 600 MHz.

In conclusion, a DR331-105BE common mode choke is a highly useful component in various current and new technologies, thanks to its ability to both reduce radio signals and allow for flow of common mode signals. The DR331-105BE is a high-performance common mode choke with a frequency range of up to 600 MHz, which makes it suitable for various applications, ranging from Ethernet transmissions to USB 3.0, HDMI and DisplayPort.

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