SF2040B-2

Overview

The Murata SF2040B-2 is a Surface Acoustic Wave (SAW) filter designed for intermediate frequency applications. It operates at a center frequency of 80.46 MHz with a bandwidth of 4.1 MHz. The component features impedance values of 175 Ohms and 1 kOhm, ensuring signal integrity in RF circuits. It is housed in a compact 10-SMD, No Lead package with dimensions of 0.276 inches by 0.197 inches and a maximum height of 0.079 inches. The device meets AEC-Q200 qualification standards for automotive reliability.

Feature Summary

• Utilizes Surface Acoustic Wave technology for precise intermediate frequency filtering
• Qualified to AEC-Q200 automotive reliability standards
• Designed for surface mount integration in compact electronic assemblies

Applications

• Satellite Digital Audio Radio Service (SDARS) intermediate frequency stages
• Automotive radio receiver systems requiring AEC-Q200 compliance
• RF front-end modules for broadcast signal processing

Procurement Notes

Verify the specific suffix designation against official Murata documentation to confirm exact electrical tolerances and packaging variations. Ensure the procurement channel provides valid traceability records for AEC-Q200 qualified components. Cross-reference the datasheet revision date to guarantee compatibility with current design specifications and regulatory requirements.

Selection Notes

Select this component when an 80.46 MHz SAW filter is required for SDARS or similar automotive audio applications. The 10-SMD package suits automated surface mount assembly processes. Confirm that the 175 Ohm and 1 kOhm impedance matching aligns with the surrounding circuit topology before finalizing the bill of materials.

Part Context

This part belongs to Murata's portfolio of SAW filters engineered for high-frequency signal processing. The SF2040 series targets specialized communication bands, offering stable performance in noise-sensitive environments. As an automotive-qualified device, it supports manufacturers seeking reliable passive components for safety-critical or consumer electronics within vehicles.

Replacement Considerations

Consult official Murata substitution guides for direct equivalents. Verify pinout compatibility and electrical parameter alignment before integrating alternative parts into existing designs.