4253-002

Current:	10A
Height:	--
Size / Dimension:	0.250" Dia x 0.807" L (6.35mm x 20.49mm)
Package / Case:	Axial, Bushing
Mounting Type:	Chassis Mount
Voltage - Rated:	70V
Applications:	Data Lines for Mobile Devices
Operating Temperature:	-55°C ~ 125°C
ESD Protection:	No
Values:	C = 0.05µF
Series:	4200
Resistance - Channel (Ohms):	--
Attenuation Value:	75dB @ 100MHz ~ 10GHz
Center / Cutoff Frequency:	--
Number of Channels:	1
Technology:	LC (Pi)
Filter Order:	3rd
Type:	Low Pass
Part Status:	Active
Packaging:	Bulk

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Introduction

EMI/RFI Filters (LC, RC Networks) are specialized electrical components designed to reduce or attenuate the electromagnetic radiation emitted by a circuit, device or system. They can also be used to filter-out electromagnetic interference (EMI) that is present in the environment or generated by other circuits or devices. The 4253-002 Application Field and Working Principle is an example of this type of filter, specifically a Large Conductive (“LC”) filter.

Application field

The 4253-002 filter is generally used in applications where the filtered signal might be subject to a wide range of EMI interference. Specifically, it is designed for use in mobile devices, such as mobile phones, tablets, and PDA’s, in order to reduce the amount of electromagnetic radiation and EMI that is emitted and experienced by the user. Additionally, it is used in other applications involving communication systems, test and measurement systems, automotive systems, and other electronic systems and systems where low levels of EMI are necessary.

Working Principle

The 4253-002 filter works by intercepting radiated signals emitted by a particular circuit, device or system, such as a mobile phone or tablet. The filter is composed of a High Frequency Conductive Z (HFZ) network, which is composed of inductors and capacitors combined in such a way that the inductance and capacitance far exceeds that of a simple inductor-capacitor (LC) network. This network has the ability to strongly attenuate the signal frequency, and therefore reduce the amount of EMI that is emitted by the device.The HFZ network also increases the signal quality by filtering out unwanted RF signals that can affect the accuracy of the transmitted signal. By filtering out these undesired signals, the 4253-002 ensures a clean signal transmission with minimal interference. Additionally, the filter also provides a degree of signal isolation, ensuring that the receiving device does not receive interference from other devices in the vicinity.

Conclusion

The 4253-002 filter belongs to the category of EMI/RFI filters (LC, RC networks). It is designed for use in mobile devices, communication systems, test and measurement systems and other electronic systems where low levels of EMI are essential. The filter consists of a High Frequency Conductive Z (HFZ) network, which is composed of inductors and capacitors combined to strongly attenuate the signal frequency. The filter also improves signal quality and provides signal isolation.

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