L204XF4S

Overview

The L204XF4S is a surface-mount low-pass RF filter manufactured by Knowles Dielectric Labs. It features a center frequency of 20.4 GHz and operates with a 50 Ohm impedance. The component utilizes SMD/SMT termination for board mounting. It is designed for high-frequency signal conditioning applications requiring precise filtering characteristics within the microwave spectrum.

Feature Summary

• Surface-mount construction for automated assembly
• Low-pass filtering characteristic at 20.4 GHz
• 50 Ohm system impedance compatibility

Applications

• Microwave communication systems
• RF signal conditioning circuits
• High-frequency test equipment

Procurement Notes

Verify the specific datasheet version to confirm electrical parameters such as insertion loss and return loss, as these are critical for RF design. Ensure the package footprint matches the PCB layout requirements. Confirm RoHS compliance status if required by project specifications. Check for any specific handling instructions due to the sensitive nature of RF components.

Selection Notes

Select this component when a low-pass filter with a cutoff near 20.4 GHz is required in a 50 Ohm environment. Consider the physical size constraints of the SMD package. Evaluate thermal performance if operating near maximum temperature limits. Compare against other low-pass filters in the series for bandwidth and attenuation requirements.

Part Context

This part belongs to the Knowles Dielectric Labs surface-mount low-pass filter series. These components are engineered for reliable performance in demanding RF environments. The series offers various cutoff frequencies to suit different microwave applications. They are widely used in telecommunications and radar systems where signal integrity is paramount.