SF2280E

Overview

The SF2280E is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi. It operates at a center frequency of 869.2125 MHz with an insertion loss of 2.5 dB and a bandwidth of 800 kHz. The component features a 50-ohm impedance and is rated for a maximum voltage of 3V. Designed for surface-mount technology, it utilizes the SM-3030-6 package. The device meets AEC-Q200 qualification standards and functions within a temperature range of -10°C to +55°C.

Feature Summary

• Surface Acoustic Wave technology for precise signal conditioning
• AEC-Q200 qualified for automotive reliability requirements
• Compact SMD/SMT form factor suitable for space-constrained designs

Applications

• Automotive telematics systems
• Vehicle-to-everything (V2X) communication modules
• GNSS receiver front-end filtering

Procurement Notes

Verify the specific suffix code on the ordering part number to confirm exact packaging configuration, such as reel, cut tape, or Mousetape. Ensure the selected variant matches the required operating temperature range and voltage rating for the target application environment. Cross-reference the manufacturer datasheet for pinout details and recommended soldering profiles before integration.

Selection Notes

Select this component when a narrowband SAW filter is required for ISM band applications around 869 MHz. The 800 kHz bandwidth provides sufficient selectivity for telemetry signals while maintaining low insertion loss. Consider the SM-3030-6 footprint compatibility with existing PCB layouts and verify thermal management capabilities within the specified -10°C to +55°C operational window.

Part Context

This component belongs to the SF series of RF filters from RFMi, designed for high-reliability signal processing. The SF2280E specifically targets European and global telemetry bands, offering a balance between size, performance, and cost. Its AEC-Q200 certification distinguishes it from general-purpose industrial filters, making it suitable for automotive-grade electronics where long-term stability is critical.

Replacement Considerations

No direct public substitute part numbers are confirmed in available documentation.