SF2289C

Overview

The Murata Electronics SF2289C is a Surface Acoustic Wave (SAW) filter designed for general RF applications. It operates at a center frequency of 155 MHz with a bandwidth of 6.5 dB and an insertion loss of 6.5 dB. The component features a nominal impedance of 50 Ohms and is housed in an 8-SMD, No Lead package measuring 5.00mm x 5.00mm x 1.70mm. It supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Surface Acoustic Wave technology for RF signal filtering
• Compact 8-SMD leadless package design
• General purpose RF application suitability

Applications

• General RF signal processing
• Wireless communication systems
• RF front-end modules

Procurement Notes

Verify current availability status as the SF2289C is listed as obsolete by the manufacturer. Confirm compatibility with existing PCB footprints and validate that alternative components meet identical electrical specifications for center frequency, bandwidth, and impedance requirements before finalizing procurement plans.

Selection Notes

Select this component for designs requiring a 155 MHz SAW filter with specific 6.5 dB bandwidth constraints. Ensure the system accommodates the 6.5 dB insertion loss and verify that the 8-SMD package dimensions fit the designated board space. Consider thermal performance within the specified operating temperature range during circuit layout.

Part Context

This part belongs to the SF22 series of SAW filters manufactured by Murata Electronics. These components are engineered for radio frequency applications requiring precise frequency selection. The SF2289C specifically targets the 155 MHz band, offering a standardized solution for RF filtering needs in compact electronic devices.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify equivalent specifications with other manufacturers if sourcing new production units.