B39781B8205P810

Overview

The B39781B8205P810 is a surface-mount SAW filter designed for LTE Band 3 (1800 MHz) applications. It operates within the frequency range of 1710 to 1785 MHz, providing essential signal filtering for mobile communication devices. The component features a compact SMD package suitable for space-constrained designs. Key electrical characteristics include insertion loss and rejection specifications defined by Qualcomm's official datasheets for this specific part number.

Feature Summary

• Optimized surface acoustic wave technology for high selectivity
• Designed for integration into LTE Band 3 transceiver modules
• Compact footprint supporting miniaturized mobile device architectures

Applications

• LTE Band 3 mobile handsets
• Smartphone RF front-end modules
• Tablet communication circuits

Procurement Notes

Verify the exact suffix P810 against the manufacturer's current ordering guide to ensure correct packaging and tape-and-reel specifications. Confirm that the revision level matches your design requirements. Cross-reference the datasheet version with the procurement order to avoid discrepancies in mechanical dimensions or electrical tolerances.

Selection Notes

Select this component when designing for LTE Band 3 coverage requiring low insertion loss and high out-of-band rejection. Ensure the PCB layout accommodates the specified SMD package dimensions. Verify thermal management capabilities align with the device's power handling limits as detailed in the official thermal resistance data.

Part Context

This filter belongs to Qualcomm's portfolio of RF components targeting global LTE bands. It serves as a critical element in maintaining signal integrity for uplink and downlink paths in Band 3 operations. The component supports carrier aggregation scenarios where adjacent band interference must be minimized.

Replacement Considerations

Consult official substitution lists for equivalent SAW filters from Qualcomm or qualified second-source manufacturers. Ensure any replacement maintains identical pinout, package outline, and electrical performance curves for Band 3.