SF2258E

Overview

The SF2258E is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi, designed for signal conditioning applications. It operates at a center frequency of 2.657 GHz with a bandwidth of 66 MHz, covering a range from 2.624 GHz to 2.69 GHz. The component features a 50 Ohm impedance and a voltage rating of 3 V. It exhibits an insertion loss of 2.3 dB and utilizes an SM-3030-6 surface-mount package with six terminals. The device supports board mounting and is available in cut tape or reel packaging.

Feature Summary

• Surface Acoustic Wave technology for precise signal filtering
• Compact SM-3030-6 surface-mount package design
• Optimized for high-frequency bandpass applications

Applications

• Wireless communication systems requiring 2.6 GHz filtering
• Mobile device RF front-end modules
• Base station signal conditioning circuits

Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with the manufacturer or authorized distributor before procurement. Confirm that the SM-3030-6 package dimensions align with your PCB footprint requirements. Ensure that the 3 V voltage rating and 2.3 dB insertion loss specifications meet your system's performance criteria. Check for any recent manufacturing updates or lead time changes associated with the RFMi SF series components.

Selection Notes

Select the SF2258E when a SAW filter with a 2.657 GHz center frequency and 66 MHz bandwidth is required. This component is suitable for designs needing low insertion loss and a compact SMD form factor. Consider the -45 C to +125 C operating temperature range for environmental suitability. Compare against other SF series models if different frequency bands or bandwidths are needed for alternative system configurations.

Part Context

The SF2258E belongs to the RFMi SF series of signal conditioning components. This series includes various SAW filters tailored for specific frequency ranges within the wireless spectrum. The SF2258E specifically targets the 2.6 GHz band, distinguishing it from other models like the SF2236E (LTE band) or SF2254E (GSM/DCS band). It shares the common SM-3030-6 package style found across many parts in this product line.

Replacement Considerations

Publicly confirmed substitute part numbers for the SF2258E were not identified in the provided documentation. Engineers should consult official cross-reference guides or contact RFMi technical support for verified alternatives. Ensure any replacement maintains identical electrical parameters, including the 2.657 GHz center frequency and 66 MHz bandwidth.