SF2211E

Overview

The SF2211E is a surface acoustic wave (SAW) bandpass filter manufactured by RFMi. It operates at a center frequency of 1.2 GHz with a bandwidth of 20 MHz, covering a range from 1.18 GHz to 1.22 GHz. The component features a 50 Ohm impedance and a maximum voltage rating of 3 V. Insertion loss is specified at 2.8 dB. It utilizes an SM-3030-6 package with SMD/SMT termination for board mounting. The device functions within a temperature range of -40°C to +85°C.

Feature Summary

• Surface acoustic wave technology for signal conditioning
• Bandpass filtering capability centered at 1.2 GHz
• Compact surface-mount packaging design

Applications

• General purpose RF applications
• Wireless communication systems
• Signal processing circuits

Procurement Notes

Verify the specific datasheet version when ordering, as some sources indicate a 40 MHz bandwidth or 4.0 dB insertion loss, which differs from the primary 20 MHz/2.8 dB specification. Confirm the manufacturer designation, as listings may reference Akoustis-RFMi. Ensure the required operating temperature range aligns with the standard -40°C to +85°C rating found in official documentation.

Selection Notes

Select this component for designs requiring a narrowband filter at 1.2 GHz with low insertion loss. The 50 Ohm impedance matches standard RF transmission lines. Consider the SM-3030-6 footprint for space-constrained layouts. Verify that the 3 V voltage rating meets the circuit requirements before integration.

Part Context

The SF2211E belongs to the SF series of SAW filters from RFMi. These components are designed for high-frequency signal conditioning. The series typically offers various center frequencies and bandwidths to suit different RF applications. The SF2211E specifically targets the 1.2 GHz region.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided data.