SF2137E-1

Overview

The SF2137E-1 is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi. It operates at a center frequency of 869.00 MHz with a bandwidth of 2 MHz. The component features a 50 Ohm impedance and supports supply voltages up to 5 V. Insertion loss is specified at 2.7 dB. It is housed in an SM3030 surface-mount package, designed for signal conditioning applications in the 868 to 870 MHz frequency range.

Feature Summary

• Surface Acoustic Wave technology for precise signal filtering
• Designed for operation within the 868 to 870 MHz band
• Compact SM3030 surface-mount package format

Applications

• Signal conditioning in wireless communication systems
• RF front-end modules operating at 869 MHz
• Bandpass filtering in industrial or medical radio equipment

Procurement Notes

Verify the specific suffix E-1 against official RFMi documentation to ensure correct electrical characteristics, as variants may differ. Confirm RoHS compliance status through the manufacturer's current datasheet. Ensure handling precautions for electrostatic sensitive devices are observed during storage and assembly processes.

Selection Notes

Select this component when a narrow 2 MHz bandwidth is required at 869 MHz. The SM3030 package suits space-constrained designs. Compare insertion loss specifications against system requirements. Ensure the 50 Ohm impedance matches the surrounding circuit topology for optimal power transfer.

Part Context

This part belongs to the RFMi SAW filter series, which includes variants like SF2137E and SF2137E-2. These filters are engineered for high-frequency signal integrity. The SF2137E-1 specifically targets the 869 MHz region, distinguishing it from other frequencies in the product line.

Replacement Considerations

SF2137E-2 is a documented variant within the same series. Verify if functional differences exist between these models before substitution. No other direct substitutes are confirmed in public data.