SF2049E-1

Overview

The Murata Electronics SF2049E-1 is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates at a center frequency of 915 MHz with a bandwidth of 26 MHz, covering the range from 902 MHz to 928 MHz. The component features a 50 Ohm impedance and an insertion loss of 2.2 dB. It is rated for a maximum voltage of 5 V and functions within a temperature range of -40°C to +85°C. The device utilizes a 6-SMD, No Lead package with dimensions of 3.00mm x 3.00mm.

Feature Summary

• Steep roll-off SAW filter technology for precise signal selection
• Compact surface-mount design suitable for space-constrained PCBs
• Optimized for ISM band operation with low insertion loss

Applications

• ISM band wireless communication systems
• RF signal conditioning in transceivers
• Frequency filtering in 915 MHz applications

Procurement Notes

Verify the manufacturer designation carefully, as sources indicate RFMi branding alongside Murata part numbers. Confirm the specific datasheet version matches the required electrical tolerances. Ensure the ordering suffix corresponds to the exact packaging format needed for production assembly. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 915 MHz center frequency with a 26 MHz bandwidth is required. The 50 Ohm impedance matches standard RF transmission lines. Consider the 6-SMD package size for layout constraints. Verify that the 5 V voltage rating meets the circuit's power supply specifications. Ensure the operating temperature range aligns with the environmental conditions of the target application.

Part Context

The SF2049E-1 belongs to the SF series of SAW filters manufactured by Murata Electronics. These components are engineered for high-performance RF filtering in compact form factors. The series typically targets industrial, scientific, and medical (ISM) radio bands, providing reliable signal integrity in wireless communication modules.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Murata resources for direct replacements or cross-references.