4610H-702-680/470L

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EMI/RFI Filters are essential in electronic systems to alleviate the issues of electromagnetic interference and radio-frequency interference. The 4610H-702-680/470L is one such filter. It is a miniature, low profile, narrow band device with high attenuation. The filter is designed for a specific frequency range, 680MHz-470LMHz, optimizing its ability to reject interference at those frequencies. In terms that are easy to understand, the filter essentially blocks any interference that lies between the two frequencies.

This particular filter is used in a variety of applications, dependent on the device’s size and frequency difficulties. It is often used in cellular/GSM/CDMA/PCS applications, as well as in LAN/WAN/RF applications. Additionally, the 4610H-702-680/470Lcan be used in other electronic systems which integrate wireless devices, but require a filter to reduce or eliminate noise and interference.

The 4610H-702-680/470L also has the advantage of a low profile, as it measures 0.106”x0.106”x0.030”. This makes the filter especially useful for devices with space restrictions, as the device won’t take up valuable space. The filter also has a maximum stopband attenuation of 30dB, and a maximum insertion loss of 1.5dB, making it an efficient filter.

At the core of the filter is a multi-layer,through coupled, LC type network printed on a low loss substrate which enables the attenuation characteristics of the filter to reach the specified performance levels. The substrate is composed of a dielectric material and etched on it are multiple traces with interconnections and inductors. The inductors consist of a winding that is designed to emit and capture the electromagnetic signals being transferred between two isolated networks.

The electra-magnetic signals emitted by the inductors travel through the substrate towards a capacitor, resulting in a decrease in the electric field around the winding. The electric field then combines with the magnetic field resulting in voltage levels dropping to zero, creating a stronger signal that is free of unwanted external interference. This is the working principle of the filter and allows its performance to reach the necessary attenuation levels required.

The 4610H/702/680/470L miniature filter is used in applications that require high attenuation at a very specific frequency range. It is compact and low profile, allowing it to be used in systems with space restrictions, and it utilizes a printed inductive-coupled LC type network that allows it to reach the specified attenuation levels. As such, the filter is a great option for many electronic systems which require a specific attenuation level at a certain frequency range.

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