SF2203E

Overview

The SF2203E is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi, an Akoustis brand. It operates with a center frequency of 834 MHz and supports a frequency range from 819 MHz to 849 MHz. The component features a bandwidth of 30 MHz and is rated for a maximum insertion loss within this specified range. Designed for general purpose signal conditioning applications, it functions at a rated voltage of 3 V and maintains a system impedance of 50 Ohms. The device is housed in a compact 6-SMD, no lead package, suitable for surface mount assembly.

Feature Summary

• Surface Acoustic Wave technology for precise signal filtering
• General purpose design for broad application compatibility
• Compact 6-SMD no-lead package for space-constrained layouts

Applications

• General purpose RF signal conditioning
• Wireless communication systems requiring 834 MHz filtering
• Digital signal processing front-ends

Procurement Notes

Verify the manufacturer designation as RFMi, an Akoustis brand, to ensure authenticity. Confirm the specific suffix 'E' corresponds to the required packaging or variant specifications. Check RoHS compliance status against current regulatory requirements for your region. Ensure the 6-SMD no-lead package matches your PCB footprint design. Validate the 50 Ohm impedance rating aligns with your circuit interface requirements.

Selection Notes

Select this component when a SAW filter centered at 834 MHz is required for general purpose applications. The 30 MHz bandwidth provides adequate selectivity for signals within the 819-849 MHz range. Consider the 6-SMD package size for board space limitations. Ensure the 3 V rated voltage is sufficient for the operating environment. Verify that the insertion loss characteristics meet the system sensitivity requirements.

Part Context

RFMi, now part of Akoustis, specializes in RF components utilizing SAW, crystal, and ceramic technologies. The SF2203E belongs to their line of signal conditioning filters designed for digital and wireless markets. This series emphasizes reliability and performance in compact form factors, supporting various communication standards that require precise frequency selection and noise rejection.

Replacement Considerations

The SF2200E is a related SAW filter from the same manufacturer but operates at a different center frequency of 707 MHz. Substitution requires careful evaluation of frequency alignment with the target application spectrum. Other generic SAW filters may not match the specific 834 MHz center frequency or 30 MHz bandwidth characteristics.