4120R-601-250/201L

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EMI/RFI filters have been widely employed in numerous electronic applications to prevent interference from and to other surrounding devices. 4120R-601-250/201L is one such type of filter that has versatile features and applications, along with a range of ratings and size options to choose from. This article will focus on the 4120R-601-250/201L and its application field and working principle.The 4120R-601-250/201L is a 75 Ohm radio frequency (RF) interference/electromagnetic interference (EMI) filter. This product is mainly used to reduce the amount of RF signals entering or leaving electrical equipment. It is designed to be used with common-mode and differential-mode interference, including both conducted emissions and radiated noise. The 4120R-601-250/201L is frequency independent, meaning that it will attenuate a wide range of frequencies without any loss of performance. This makes it ideal for use in various applications where multiple frequencies need to be filtered.The 4120R-601-250/201L is a low pass filter, which essentially acts as a barrier between the source of the interference and the device being protected. Inside the filter, the RF signals enter through an attenuating RC network, with each stage removing a certain percentage of the signal strength. The attenuation is determined by the resistors and capacitors used in the filter.In terms of specifications, the 4120R-601-250/201L has an insertion loss of up to 0.2dB, a common mode gain of 1.2dB, and a highpass cut-off frequency of 5.17MHz. It has a maximum DC blocking voltage of 75V, and it provides an attenuation of more than 50dBm.The 4120R-601-250/201L is a reliable and cost-effective solution for applications where RF interference and EMI need to be eliminated. It is compatible with a wide range of mechanical and electrical assemblies, and it can be mounted in almost any orientation. It is also very easy to install, and requires minimal maintenance.The 4120R-601-250/201L has numerous applications, including in telecommunications, broadcasting, broadcasting relay, video conferencing, military, and medical equipment. It is also suitable for use in automotive, consumer electronic, and appliance applications. It is designed to operate in temperatures of -55°C up to 85°C and a relative humidity of up to 95%.Overall, the 4120R-601-250/201L is a highly effective filter for reducing interference and EMI. It provides excellent attenuation performance, is easy to install, and requires minimal maintenance. It is a reliable and cost-effective solution, ideal for a wide range of RF filtering applications.

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