SF2145B

Overview

The SF2145B is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi. It operates at a center frequency of 895 MHz with a typical bandwidth of 15 MHz to 18 MHz. The component features a 10-pin surface-mount package measuring 7.0 mm x 5.0 mm. It is designed for a source impedance of 50 Ohms and complies with RoHS directives. The device supports AEC-Q200 automotive qualification standards.

Feature Summary

• Utilizes Surface Acoustic Wave technology for signal conditioning
• Designed for high-frequency bandpass filtering applications
• Available in a compact 10-pin surface-mount case
• Complies with environmental safety directives

Applications

• Automotive communication systems requiring AEC-Q200 compliance
• RF front-end signal filtering in wireless transceivers
• Base station receiver input stages
• Industrial radio equipment operating near 895 MHz

Procurement Notes

Verify the specific manufacturer documentation to confirm current production status and exact electrical tolerances. Ensure the ordering suffix matches the required termination style and packaging format. Cross-reference the part number with official RFMi catalogs to validate compatibility with your system's impedance requirements and frequency specifications before finalizing procurement.

Selection Notes

Select this component when a narrowband SAW filter is required at 895 MHz with a 10-pin SMD footprint. Consider the insertion loss characteristics and power handling capabilities relative to your circuit design. Verify that the 50-Ohm impedance matches your transmission line requirements. Confirm automotive grade certification if used in vehicle electronics.

Part Context

This component belongs to the RFMi SAW filter family, which provides size-to-performance optimized solutions for RF applications. The SF series typically offers robust performance in compact packages suitable for space-constrained designs. These filters are engineered to meet stringent industry standards for signal integrity and reliability in demanding electronic environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Consult official RFMi documentation or authorized distributors for qualified alternatives. Ensure any replacement maintains identical center frequency, bandwidth, and package dimensions to preserve circuit functionality.