BX8191NL

Common Mode Chokes are an electronic device specifically designed to suppress common mode interference signal currents on electrical lines. They are utilized when grounding conditions for signal lines are not ideal or when designed to support EMI / RFI shielding techniques. By controlling the flow of the signal currents to the ground, Common Mode Chokes can reduce the AC voltage on an individual line, thus providing noise filtering and signal integrity. The model BX8191NL is a Common Mode Choke specifically designed for EMI / RFI shielding and noise reduction on internal AC lines. It has a high-performance 28-bit differential line termination, with a -3dB cutoff frequency of DC~200M Hz. The BX8191NL is designed to have a wide temperature range, reaching from -40C to +125C. It is also designed with an extremely low operating voltage, operating up to a maximum of 1.2V RMS. In addition to its performance features, the BX8191NL is highly reliable and cost effective. It has a wide dynamic range of operation and a long shelf life of five years. The unit is rated to handle a maximum operating current of 1A, and operates with a power dissipation of 1W.The working principle of the BX8191NL revolves around the electrical current flowing through the device. The BX8191NL applies an inductor, referred to as a “common mode coil”, in a single package. This coil acts as the central core of the BX8191NL, and acts to suppress common mode currents. The Common Mode Choke sits on the line, receiving power from both the live and neutral lines. The live and neutral lines are then directed to the base of the BX8191NL, where they rise up the inductor to provide a path for the electrical current to flow, before returning to the respective live and neutral lines. This forms a (closed) loop, from the live line to the BX8191NL and then to the neutral line. The inductance of the device captures the current flowing to the ground, disrupting the path and reflecting back the common mode interference signal currents. Since the BX8191NL is a differential device, only currents that flow through both the live and neutral lines are subjected to the flow of interference currents. This allows the BX8191NL to reduce the amount of AC voltage a line is subjected to, ensuring noise filtering and signal integrity.The BX8191NL has a multitude of applications in the field of Common Mode Chokes. It can be used for various applications, including consumer electronics, automotive, industrial, and communications applications. It is also suitable for applications such as digital photo frames, SD cards, monochrome displays, and Wi-Fi devices. The device can also be used in applications that require an EMI / RFI shielding solution, such as in the shielding of low EMF emitters and sensitive electrical circuits.Overall, the BX8191NL offers a comprehensive solution for EMI / RFI noise reduction and signal integrity by applying a Common Mode Choke to suppress common mode interference signal currents. With its high-performance, cost-effectiveness, low power consumption, and wide dynamic range, the BX8191NL is an ideal choice for any application that requires Common Mode Choke technology.

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