SF2237C

Overview

The SF2237C is a Surface Acoustic Wave (SAW) filter manufactured by RFMi. It operates at a nominal center frequency of 515.0 MHz with a bandwidth of 34 MHz. The component features an insertion loss of 2.7 dB and is designed for general-purpose RF applications. It utilizes a 50 Ohm impedance system and is housed in an SM-5050-8 surface-mount package, suitable for signal conditioning in wireless communication systems.

Feature Summary

• Surface Acoustic Wave technology for efficient signal filtering
• Optimized for low insertion loss performance
• Compact surface-mount design for space-constrained PCBs

Applications

• General purpose RF signal conditioning
• Wireless communication modules
• Machine-to-machine (M2M) connectivity devices

Procurement Notes

Verify the specific datasheet version from RFMi or authorized distributors to confirm exact electrical tolerances and packaging details. Ensure compatibility with your circuit's 50 Ohm impedance requirements. Check for RoHS compliance status if required by your manufacturing standards. Confirm the SM-5050-8 package dimensions match your board layout constraints before finalizing procurement.

Selection Notes

Select this component when a 515 MHz SAW filter is required for general RF applications. Consider its 2.7 dB insertion loss and 34 MHz bandwidth against system sensitivity requirements. The SM-5050-8 package offers a compact footprint for modern electronics. Evaluate thermal and mechanical stability needs relative to the surface-mount form factor.

Part Context

RFMi, now part of Akoustis Technologies, specializes in RF components using SAW, crystal, and ceramic technologies. The SF2237C belongs to their SAW filter lineup, targeting digital and wireless applications. This product line supports emerging wireless technologies and M2M connections, providing essential frequency selection and interference rejection capabilities for radio frequency front ends.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult RFMi technical support for direct equivalents or cross-reference options based on specific electrical parameter matching.