SF2276D-2

Overview

The RFMi SF2276D-2 is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates with a center frequency of 453.75 MHz and supports a frequency range from 450 MHz to 457.5 MHz, providing a bandwidth of 7.5 MHz. The component features a 50 Ohm impedance and an insertion loss of 3.5 dB. Rated for a maximum voltage of 5 V, it functions within a temperature range of -45°C to +125°C. The device utilizes an SM-3838-6 surface-mount package and is supplied in reels.

Feature Summary

• Surface Acoustic Wave technology for precise RF filtering
• Bandpass configuration optimized for specific frequency ranges
• Compact surface-mount design for board integration

Applications

• General purpose RF signal conditioning
• Wireless communication systems requiring 450-457.5 MHz filtering
• RF front-end modules

Procurement Notes

Verify the manufacturer part number SF2276D-2 against official RFMi documentation to confirm specifications. Ensure compatibility with the required 50 Ohm system impedance and 5 V rating. Confirm the SM-3838-6 package dimensions match the PCB layout. Check RoHS compliance status if required by project standards. Validate the operating temperature range meets environmental requirements.

Selection Notes

Select this component when a SAW filter with a 453.75 MHz center frequency is required. The 7.5 MHz bandwidth suits applications needing narrowband filtering in the specified range. Consider the 3.5 dB insertion loss impact on signal strength. The wide operating temperature range allows use in harsh environments. Ensure the SMD package fits the available board space.

Part Context

This component belongs to the SF series of SAW filters manufactured by RFMi. These devices are engineered for high-performance signal conditioning in RF circuits. The series offers various frequency options tailored for different wireless standards. The SF2276D-2 specifically targets the 450-457.5 MHz band.

Replacement Considerations

Check for direct substitutes with identical 453.75 MHz center frequency and 7.5 MHz bandwidth. Verify pinout compatibility for the SM-3838-6 package. Ensure equivalent insertion loss and impedance characteristics.