CM1482-02DE

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EMI/RFI filters are essential components for communication systems as they are capable of blocking high-frequency noise and electromagnetic interference. The CM1482-02DE filter is a low-cost, high-performance and compact solution for reducing EMI and RFI noise in system applications. This article outlines the applications and working principles behind this widely used filter.

The CM1482-02DE provides up to 50dB of EMI/RFI noise suppression for both common and differential mode noise, making it a popular choice for many system designs. It is suitable for a variety of automotive, industrial, parts, and consumer applications. The filter can be used for TV/AV, BMS, LED, OA, EMS, and mobile phones or other handheld electronic devices. In addition, it has been specifically designed for automotive infotainment system applications.

The CM1482-02DE filter consists of an array of inductors, capacitors, and resistors that form an electrical circuit for noise suppression. Inductors resist changes in current and are used to reduce EMI noise, while capacitors store energy and are typically used to reduce RFI noise. The resistor is included to limit current and control the voltage drop across components in the circuit. Together, these components form a filter network to block out unwanted noise and parasitic signals.

The working principle of the CM1482-02DE filter involves the decoupling of the power lines from unwanted noise sources. The inductors and capacitors in the filter’s networks form a low-pass filter, which decouples low-frequency signal components from high-frequency signals. This helps to reduce the effects of adjacent noise on the system. High-frequency signals are attenuated so that they do not interfere with the desired signal.

The filter also features an integrated in-line transient suppression diode, which maps out high-frequency noise and eliminates it before it has a chance to interfere with the system. The combination of the integrated components provides a comprehensive and effective EMI/RFI noise suppression solution for system application.

The CM1482-02DE filter is a robust, low-cost, and high-performance EMI/RFI noise-suppression solution for many system applications. It is also suitable for automotive and infotainment systems, and can reduce the effects of adjacent noise on the system. Its simple working principle and integrated components provide an effective and comprehensive noise-suppression solution.

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