SF2388E

Overview

The SF2388E is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi. It operates at a center frequency of 1.17645 GHz with a bandwidth of 20 MHz, covering a range from 1.16645 GHz to 1.18645 GHz. The component features a 3.3 dB insertion loss and is rated for a maximum voltage of 7.5 V. It utilizes a 50 Ohm impedance and is housed in a compact 6-SMD, No Lead package. The device is designed for GPS RF applications and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Surface Acoustic Wave technology for precise signal conditioning
• Optimized for GPS RF frequency bands
• Compact surface-mount packaging for space-constrained designs

Applications

• GPS receiver front-end filtering
• RF signal conditioning modules
• Wireless communication devices requiring L-band filtering

Procurement Notes

Verify the specific package variant and lead times directly with authorized distributors or the manufacturer. Ensure compatibility with your PCB footprint and thermal requirements. Confirm RoHS compliance status if required by your regulatory standards. Cross-reference part numbers carefully to avoid substitutions that may differ in electrical characteristics or pinout configuration.

Selection Notes

Select this component when a narrow 20 MHz bandwidth is required at 1.17645 GHz. The 3.3 dB insertion loss offers a balance between signal attenuation and noise figure. Consider the 7.5 V rating for low-power RF chains. The SMD form factor suits automated assembly processes. Evaluate thermal performance within the specified -40°C to +85°C range for your target environment.

Part Context

This SAW filter belongs to the RFMi signal conditioning portfolio, targeting high-frequency RF applications. It addresses the need for stable frequency selection in global positioning systems. The design leverages acoustic wave propagation for sharp roll-off characteristics. It serves as a critical passive element in maintaining signal integrity against out-of-band interference.

Replacement Considerations

No public confirmed substitute part numbers are available for direct replacement. Any alternative must be evaluated for identical center frequency, bandwidth, and package dimensions. Verify electrical parameters match exactly to ensure system performance consistency.