PMR209ME6470M047R30

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Electromagnetic interference (EMI) and radio frequency interference (RFI) are among the most common issues that can be encountered when designing and constructing electronic circuits. EMI/RFI Filters provide a solution by helping to minimize the effect of interference on electronic components. Filters are used in the form of LC (inductance-capacitance) and RC (resistance-capacitance) networks to attenuate noise signals and limit the amount of interference produced. The PMR209ME6470M047R30 is a type of EMI/RFI filter designed specifically for use in audio and video applications, and this article will discuss the filter’s application field and working principle.

Application Field

The PMR209ME6470M047R30 is an EMI/RFI filter designed for use in audio and video applications. It is a double-ended filter with a 47 ohm resistor installed on the middle terminal.This filter can be used in a variety of applications, including audio and video equipment, power supplies, instrumentation equipment, and digital signal processing circuits.

The filter’s design ensures optimal attenuation of both Common-Mode and Differential-Mode interference, making it suitable for a wide range of applications. It can also be used in applications where extra high-frequency attenuation is needed, such as in cell phones, handhelds, and digital radios.

Working Principle

The PMR209ME6470M047R30 utilizes the principle of LC (inductance-capacitance) and RC (resistance-capacitance) networks to provide attenuation of noise signals and limit the amount of interference produced. The filter consists of an inductor connected to the main terminal on the top and a capacitor connected to the middle terminal on the bottom. The 47 ohm resistor serves as an additional filter and helps to reduce the amount of interference generated by the other components.

When noise signals are present, the inductor and capacitor react to attenuate them. The inductor allows high frequency noises to pass through while blocking low frequency noises. The capacitor, on the other hand, passes low frequency noises while blocking high frequency noises. The resistor serves to further attenuate the noise signals generated by the inductor and capacitor, thus ensuring that only small amounts of interference are produced.

Conclusion

The PMR209ME6470M047R30 is a type of EMI/RFI filter designed specifically for use in audio and video applications. It utilizes the principle of LC (inductance-capacitance) and RC (resistance-capacitance) networks to provide attenuation of noise signals and limit the amount of interference produced. The filter is ideal for use in applications requiring maximum attenuation of both Common-Mode and Differential-Mode interference, as well as extra high-frequency attenuation. In this way, the PMR209ME6470M047R30 provides an effective solution to the problem of EMI/RFI.

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