8104-RC

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Common Mode Chokes (CMCs) are devices used to filter out electromagnetic interference (EMI) and radio frequency interference (RFI) signals from an circuit, ensuring proper operation of the system. 8104-RC is one of the most popular CMCs developed for the automotive and other industries, due to its wide range of applications and reliable performance. This article will explore the 8104-RC application field and working principle.

8104-RC Application Field

The 8104-RC is specifically designed for EMI and RFI suppression in low-voltage circuits. It is a bi-directional device, meaning it will reduce current flows in both directions from the circuit. It is most often used in automotive and industrial applications, including those for battery chargers, data buses, and industrial instrumentation. It has also been used for control systems for wind turbines, to reduce voltage spikes created by high-speed rotating blades.

The 8104-RC is known for its reliable performance and wide frequency range, from 500 kHz to 300 MHz. It is also designed to withstand temperatures of up to 105°C, making it suitable for use in a variety of hot environments. Moreover, it can operate with DC voltages of up to 100V.

Working Principle of 8104-RC

The 8104-RC works by reducing the magnitude of the AC current or voltage entering the system, known as common mode noise. This is done by creating an electromagnetic field with an air gap which acts as a barrier between the current and the system. The choke also acts as an inductor, which filters out high frequency noise before it reaches the system. Finally, the 8104-RC will absorb any transient spikes, or short bursts of high voltage, which could otherwise disrupt the system.

In terms of physical design, the 8104-RC is an axial device with three coils wound around a ferrite core which creates an inductance when AC voltage is passed through it. The ferrite core is also magnetic and helps to reduce the amount of AC current passing through the device. Finally, the choke also has an integrated mechanism which allows it to be automatically bypassed in the case of a voltage overload, preventing any damage to the system.

Conclusion

The 8104-RC is an excellent choice for a variety of automotive and industrial applications due to its broad frequency range, high temperature tolerance, and current-limiting capabilities. It works by creating an electromagnetic field which acts as a barrier between the system and the outside EMI and RFI, as well as absorbing any transient voltage spikes. The 8104-RC is a reliable and cost-effective solution for reducing the impact of EMI and RFI on your system.

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