SF2275E

Overview

The SF2275E is a Surface Acoustic Wave (SAW) filter manufactured by RFMi, designed for signal conditioning in the 1.542 GHz frequency range. It features a center frequency of 1542.5 MHz with a bandwidth of 35 MHz and an insertion loss of 3 dB. The component operates at 50 Ohms impedance and is housed in an SM-3030-6 surface-mount package measuring 3.00mm x 3.00mm. It holds AEC-Q200 ratings, indicating suitability for automotive applications.

Feature Summary

• Surface Acoustic Wave technology for precise signal filtering
• Automotive-grade reliability with AEC-Q200 certification
• Compact SM-3030-6 surface-mount packaging

Applications

• GNSS receiver front-end filtering
• Automotive navigation systems
• GPS module signal conditioning

Procurement Notes

Verify the specific datasheet version from RFMi or authorized distributors to confirm exact electrical tolerances and tape/reel specifications. Ensure the SM-3030-6 footprint matches your PCB design constraints. Confirm AEC-Q200 compliance requirements if deploying in automotive environments. Cross-reference part numbers to avoid confusion with similar SAW filters in the RFMi lineup.

Selection Notes

Select this component when a narrow 35 MHz bandwidth is required around 1.542 GHz. The 3 dB insertion loss offers a balance between signal attenuation and noise figure. The AEC-Q200 rating makes it appropriate for harsh automotive environments compared to standard commercial-grade filters. Consider the 50 Ohm impedance match for system integration.

Part Context

This SAW filter belongs to RFMi's portfolio of radio frequency components. It is distinct from diplexer models like the SF2755J, which handle multiple frequencies. The SF2275E focuses on single-band filtering for L1 GPS/GNSS bands. Its small form factor supports dense PCB layouts in modern mobile and automotive devices.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Verify compatibility with existing designs before considering alternatives from other manufacturers.