B82721A2401N020

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Common Mode Chokes, or CMCs, are components used to suppress electrical noise on the transmission line. The B82721A2401N020 is a CMC designed for industrial applications which is highly reliable, compact, and robust. This article will discuss the application fields and working principles of the B82721A2401N020.

The B82721A2401N020 provides excellent common mode noise suppression with a typical differential mode attenuation of up to 20 dB over a frequency range of 5 MHz to 250 MHz. It is designed for harsh industrial environments with a wide temperature range of -40°C to +85°C and offers reliable insulation of > 4 KV. The device is also highly flexible with a choice of custom design terminal surfaces that allow for mounting in various configurations. It is suitable for transmitting data over long distances and for highly sensitive applications such as medical equipment.

In order to understand how CMCs like the B82721A2401N020 work, it is important to have a basic understanding of electrical noise, what it is and how it can be generated. Electrical noise is broadly defined as any interference that occurs in electrical circuits. It can be divided into two categories: common mode and differential mode. Common mode noise is generated by the same voltage source and is transmitted in both directions along the same conductors. Differential mode noise is generated by different voltage sources and travels in opposite directions on different conductors.

The B82721A2401N020 works by preventing the transmission of common mode noise along the length of the transmission line. When the device is installed in a circuit, it forms afilter around the signal that prevents any noise from being transmitted. The filter consists of a coil which is wound around a ferrite core. When the current passes through the coil, a magnetic field is produced that opposes the current flow, effectively reducing the amplitude of the electrical noise and allowing only the desired signal to pass through. As the current increases, the induced voltage drop also increases, allowing the B82721A2401N020 to provide effective noise suppression over a wide range of frequencies.

In summary, the B82721A2401N020 is an industrial grade CMC that is designed for reliable noise suppression in harsh environments. Its wide temperature range and insulation >4KV make it ideal for highly sensitive applications such as medical equipment. The device operates by forming a filter around the signal which prevents any noise from being transmitted. Its effective noise suppression over a wide range of frequencies makes it suitable for transmitting data over long distances.

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