SF2253E

Overview

The RFMi SF2253E is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates within a frequency range of 2.62 GHz to 2.69 GHz, with a center frequency of 2.655 GHz and a bandwidth of 70 MHz. The component features a 50 Ohm impedance and supports a voltage rating of 12 V. It exhibits an insertion loss of 2.2 dB and is housed in an SM-3030-6 surface-mount package. The device functions reliably between -40°C and +85°C.

Feature Summary

• Utilizes Surface Acoustic Wave technology for precise RF signal filtering
• Provides high selectivity with a narrow 70 MHz bandwidth
• Designed for board mount installation in compact SMD form factors

Applications

• General-purpose RF signal conditioning
• Wireless communication systems operating near 2.655 GHz
• Mobile device front-end modules requiring bandpass filtering

Procurement Notes

Verify the specific ordering suffix and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the required packaging format matches the reel specifications provided in the official datasheet. Ensure that the voltage and temperature ratings align with the target application environment to guarantee long-term reliability and performance consistency.

Selection Notes

Select this component when a SAW filter with a 70 MHz bandwidth at 2.655 GHz is required. Consider the 2.2 dB insertion loss and 50 Ohm impedance match for system integration. Evaluate the SM-3030-6 package dimensions against available PCB space. Verify thermal stability requirements against the -40°C to +85°C operating range.

Part Context

The SF2253E belongs to the SF series of bandpass filters manufactured by RFMi. This series focuses on providing reliable signal conditioning solutions for RF applications. The component is classified under general-purpose RF filters, suitable for environments requiring stable performance across varying temperatures.

Replacement Considerations

Consult official substitution guides from RFMi for verified alternatives. Cross-reference technical parameters such as center frequency, bandwidth, and package type when evaluating potential replacements.