SF1220G

Overview

The Murata Electronics SF1220G is a Surface Acoustic Wave (SAW) filter designed for RF signal conditioning. It operates at a center frequency of 2.326 GHz with a bandwidth of 14 MHz and an insertion loss of 2.6 dB. The component utilizes a copper conductor and ceramic material, housed in a compact 5-SMD, no-lead package measuring 2.50 mm x 2.00 mm. This device is specifically engineered for high-frequency applications requiring precise frequency selection.

Feature Summary

• Utilizes Surface Acoustic Wave technology for effective RF filtering
• Constructed with copper conductors and ceramic materials for high-frequency stability
• Designed for surface-mount integration in compact electronic assemblies

Applications

• GPS receiver front-end filtering
• RF signal conditioning modules
• High-frequency communication systems

Procurement Notes

Verify the current lifecycle status before procurement, as this component is marked as obsolete or to be discontinued by the manufacturer. Confirm that the specific 5-SMD package dimensions align with existing PCB footprints. Ensure that the 2.326 GHz center frequency meets the system requirements, as replacement availability may be limited due to the end-of-life designation.

Selection Notes

Select this component only if the design supports obsolete parts or requires legacy compatibility. The fixed 2.326 GHz center frequency limits flexibility for other bands. Consider the 2.6 dB insertion loss impact on system sensitivity. Verify that the small form factor fits within the constrained space of the target application without compromising thermal or mechanical integrity.

Part Context

This SAW filter belongs to Murata's lineup of passive RF components used for frequency selection. It serves as a critical element in defining the passband for radio frequency signals. The use of ceramic and copper construction ensures durability in high-frequency environments. It is distinct from general-purpose filters by its specialized acoustic wave resonance properties tailored for specific carrier frequencies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require redesigning the RF stage to accommodate different footprint or electrical characteristics.