SF2238E

Overview

The SF2238E is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi. It operates at a center frequency of 2.56 GHz with a bandwidth of 30 MHz, covering the range from 2.545 GHz to 2.575 GHz. The device features an insertion loss of 2.4 dB and is rated for a maximum voltage of 3 V. It is housed in a compact 6-SMD, no-lead package suitable for surface mount assembly.

Feature Summary

• Utilizes Surface Acoustic Wave technology for signal conditioning
• Designed as a general-purpose RF bandpass filter
• Optimized for low insertion loss performance

Applications

• Wireless communication systems
• RF signal processing modules
• General purpose RF applications requiring bandpass filtering

Procurement Notes

Verify the specific datasheet version and RoHS compliance status before procurement. Confirm that the 6-SMD package dimensions match the target PCB footprint. Ensure thermal reflow profiles adhere to the manufacturer's specified limits of 220°C for 50-80 seconds or 260°C peak for 10 seconds maximum.

Selection Notes

Select this component when a 2.56 GHz center frequency and 30 MHz bandwidth are required. Consider the 2.4 dB insertion loss and 3 V rating against system requirements. The 6-SMD package size should be evaluated for space constraints within the design.

Part Context

This part belongs to the RFMi SAW filter family, which provides solutions for RF signal conditioning. These filters are engineered for high selectivity and stability in wireless environments. The SF2238E specifically targets applications needing precise filtering around the 2.56 GHz frequency range.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative SAW filters from other manufacturers.