SF2205E

Overview

The RFMi SF2205E is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates with a center frequency of 879 MHz and supports a frequency range from 864 MHz to 894 MHz, providing a bandwidth of 30 MHz. The component features a 50 Ohm impedance and a maximum insertion loss of 3.5 dB within the specified passband. Rated for 3 V, it utilizes an SMD/SMT termination type in an SM-3030-6 package. The device functions reliably across a temperature range of -40°C to +125°C and holds AEC-Q200 qualification.

Feature Summary

• Surface Acoustic Wave technology for precise signal filtering
• AEC-Q200 qualified for automotive reliability standards
• Compact surface-mount design for space-constrained PCBs

Applications

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

Procurement Notes

Verify the specific datasheet version to confirm exact electrical tolerances and pinout configurations before integration. Ensure that the SM-3030-6 footprint matches the target PCB layout precisely. Confirm RoHS compliance status through official manufacturer documentation rather than distributor summaries. Validate thermal management requirements against the stated operating temperature limits during system design.

Selection Notes

Select this component when a narrow 30 MHz bandwidth centered at 879 MHz is required for high-frequency signal processing. The AEC-Q200 rating makes it suitable for environments requiring strict automotive reliability standards. Consider the 50 Ohm impedance match for standard RF transmission lines. Evaluate the 3.5 dB insertion loss against system link budget constraints to ensure adequate signal strength after filtering.

Part Context

This part belongs to the SF series of SAW filters manufactured by RFMi. These components are engineered for high-frequency signal conditioning where size and performance are critical. The SF series typically targets wireless communication infrastructure and mobile devices, offering consistent electrical characteristics across the product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.