SF1131B

Overview

The Murata Electronics SF1131B is a Surface Acoustic Wave (SAW) filter designed for GPS applications. It operates at a center frequency of 266.01 MHz with a bandwidth of 500 kHz and an insertion loss of 12 dB. The component utilizes a 10-SMD, no-lead surface mount package measuring 7.00 mm x 5.00 mm with a maximum height of 2.00 mm. It is rated for 30 V and is currently classified as obsolete.

Feature Summary

• Designed specifically for Global Positioning System (GPS) applications
• Utilizes Surface Acoustic Wave technology for signal filtering
• Surface mount configuration for automated assembly

Applications

• GPS receiver front-end filtering
• Satellite navigation systems
• Location-based tracking devices

Procurement Notes

Verify the obsolete status before procurement planning. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing PCB footprints and reflow profiles. Check for lead-free compliance and RoHS status in specific supply batches.

Selection Notes

Select this component only if the design supports obsolete parts. Verify that the 266.01 MHz center frequency matches the system requirements. Consider alternative modern filters if long-term supply stability is critical. Ensure the 10-SMD package fits the board layout constraints.

Part Context

This SAW filter belongs to Murata's RF passive components portfolio. It serves niche GPS frequencies distinct from standard L1 band filters. The 10-SMD package allows for compact integration in portable electronics. Obsolete status indicates it is no longer in active production by the manufacturer.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Muratec or Murata official channels for current equivalent recommendations.