SF1091A

Overview

The Murata Electronics SF1091A is a Surface Acoustic Wave (SAW) filter designed for signal conditioning in mobile communication systems. It operates at a center frequency of 211 MHz with a bandwidth of 500 kHz and an insertion loss of 7 dB. The component utilizes a 12-SMD, no-lead package measuring 13.31 mm by 6.50 mm with a maximum height of 2.00 mm. It is RoHS3 compliant and classified under EAR99.

Feature Summary

• Surface Acoustic Wave technology for precise RF filtering
• Optimized for GSM intermediate frequency applications
• Compact surface-mount design for space-constrained PCBs

Applications

• GSM cellular phone receivers
• Mobile communication base stations
• RF signal conditioning modules

Procurement Notes

Verify the current lifecycle status as sources indicate this part may be discontinued or not recommended for new designs. Confirm RoHS3 compliance and specific package variants through official manufacturer documentation before procurement to ensure compatibility with existing supply chains.

Selection Notes

Select this component for GSM IF stages requiring 211 MHz filtering. Ensure the design accommodates the 12-SMD footprint and 7 dB insertion loss characteristics. Verify thermal and mechanical constraints align with the specified dimensions and mounting requirements.

Part Context

This SAW filter belongs to Murata's passive component lineup for wireless communications. It serves as a critical element in down-conversion paths within mobile devices, providing selectivity against adjacent channel interference while maintaining signal integrity in the GSM band.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Murata Electronics directly for current equivalent components or updated series replacements.