CFUKG455KF4A-R0

Overview

The CFUKG455KF4A-R0 is a ceramic bandpass filter from the Murata CERAFIL CFU series, designed for signal conditioning applications. It operates at a center frequency of 455 kHz with a nominal impedance of 1.5 kOhms. The component features a four-element chip architecture housed in an MS3 package configuration. It supports board mount installation and is supplied in reel packaging. The device is rated for operation within a temperature range of -20°C to +80°C.

Feature Summary

• Four-element ceramic construction for precise signal filtering
• Designed for 455 kHz intermediate frequency applications
• Surface-mount compatible MS3 package format

Applications

• Intermediate frequency (IF) filtering in communication receivers
• Signal conditioning in analog audio processing circuits
• Noise reduction in broadcast equipment front-ends

Procurement Notes

Verify current lifecycle status as the part is listed as obsolete. Confirm availability through authorized distributors or surplus channels. Ensure compatibility with existing PCB footprints and reflow soldering profiles specified for the MS3 package. Check RoHS compliance documentation for regulatory adherence in target markets.

Selection Notes

Select this component when a 455 kHz ceramic filter with 1.5 kOhm impedance is required. The MS3 package suits space-constrained surface-mount designs. Consider thermal limits (-20°C to +80°C) during system integration. Evaluate replacement options if new production is planned due to obsolete status.

Part Context

This component belongs to the Murata CERAFIL CFU series of ceramic filters. These devices are engineered for high selectivity and stability in fixed-frequency applications. The CFU series typically utilizes monolithic ceramic technology to achieve sharp roll-off characteristics suitable for IF stages in radio and telemetry systems.

Replacement Considerations

Public confirmed substitute part numbers: CFUKF455KAFX002-R0, CFUKF455KD1X-R0, CFUKG455KB4X-R0.