SF2225E

Overview

The RFMi SF2225E is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates at a center frequency of 2140 MHz with a bandwidth of 60 MHz, covering a range from 2110 MHz to 2170 MHz. The component features a 50 Ohm impedance and supports a voltage rating of 3 V. It exhibits an insertion loss of 2.1 dB and utilizes an SMD/SMT end-type configuration in a 6-SMD package without leads.

Feature Summary

• Utilizes Surface Acoustic Wave technology for precise RF filtering
• Provides bandpass signal conditioning within the specified frequency range
• Designed for board mount installation via surface mount technology

Applications

• General purpose RF systems requiring 2.1 GHz filtering
• Wireless communication infrastructure components
• Signal conditioning circuits in electronic devices

Procurement Notes

Verify the specific datasheet version for accurate electrical characteristics before integration. Confirm that the 6-SMD package dimensions align with the target PCB footprint. Ensure the operating environment remains within the standard commercial temperature limits unless automotive qualification is explicitly required for this variant. Cross-reference the manufacturer part number to avoid confusion with similar series models.

Selection Notes

Select this component when a 60 MHz bandwidth at 2140 MHz is required with low insertion loss. The 50 Ohm impedance matches standard RF transmission lines. Consider the 3 V rating for compatible power supply designs. Evaluate the SMD package size against available board space constraints during the layout phase.

Part Context

This component belongs to the SF series of signal conditioning filters manufactured by RFMi. It is categorized under bandpass filters within the broader filter subcategory. The device serves as a specialized passive component for managing radio frequency signals in modern electronic assemblies.

Replacement Considerations

Check for direct substitutes within the same SF series or comparable SAW filters from other manufacturers. Verify that any replacement maintains the 2140 MHz center frequency and 60 MHz bandwidth specifications. Ensure pin compatibility and package integrity match the original design requirements.