AFS915S3-T

Overview

The AFS915S3-T is a Surface Acoustic Wave (SAW) bandpass filter manufactured by Abracon LLC. It operates at a center frequency of 915 MHz with a bandwidth of 26 MHz. The device provides an insertion loss of 4.5 dB and features high attenuation characteristics, specifically 3.3 dB passband ripple and 45 dB stopband rejection. Packaged in a compact 6-SMD, No Lead surface-mount format, it is designed for robust performance in RF signal processing applications requiring precise frequency selection.

Feature Summary

• Optimized for long-range, low-power Sub-GHz communication systems
• High-rejection SAW technology ensures effective interference suppression
• Compact surface-mount design suitable for space-constrained PCB layouts

Applications

• LoRa wireless communication modules
• Sigfox IoT network devices
• Sub-GHz ISM band transceivers

Procurement Notes

Verify the specific datasheet version to confirm exact electrical tolerances and thermal specifications before integration. Ensure compatibility with the target PCB footprint for the 6-SMD package. Confirm that the 915 MHz center frequency aligns with regional regulatory requirements for your intended market. Cross-reference pinout diagrams during schematic capture to prevent assembly errors.

Selection Notes

Select this component when a narrow-bandpass response around 915 MHz is required for Sub-GHz applications. The 26 MHz bandwidth supports data rates typical of LoRa and Sigfox protocols. Consider the 4.5 dB insertion loss impact on overall link budget calculations. The SMD package facilitates automated assembly processes compared to through-hole alternatives.

Part Context

This part belongs to Abracon's AFS series of SAW filters, which are engineered for general-purpose RF filtering. The series includes variants tuned for different frequencies such as 869 MHz and 315 MHz. These components are widely used in industrial, scientific, and medical (ISM) radio bands to isolate desired signals from noise and harmonics in wireless transmitter and receiver chains.

Replacement Considerations

Direct substitutes include other 915 MHz SAW filters from Abracon or competitors offering identical 6-SMD footprints and similar 26 MHz bandwidths. Verify that replacement parts maintain comparable insertion loss and stopband rejection levels to ensure system performance consistency.