B39781B7940P810

Overview

The B39781B7940P810 is a surface-mount SAW filter designed for LTE Band 5 (850 MHz) applications. It operates within the frequency range of 824 to 849 MHz for transmission and 869 to 894 MHz for reception. The component features a compact LGA package, facilitating integration into mobile devices requiring high linearity and low insertion loss for reliable communication in the 850 MHz band.

Feature Summary

• Optimized for LTE Band 5 operation with enhanced selectivity
• Compact surface-mount design suitable for space-constrained mobile platforms
• High linearity performance to support robust signal integrity

Applications

• LTE Band 5 transceivers in smartphones
• Mobile broadband modules operating in 850 MHz bands
• IoT devices requiring cellular connectivity in North American markets

Procurement Notes

Verify the complete part number including suffixes against official Qualcomm documentation to ensure correct pinout and electrical specifications. Confirm RoHS compliance status and lead-free requirements with the supplier or manufacturer representative prior to ordering.

Selection Notes

Select this component when designing for LTE Band 5 coverage. Ensure the PCB layout supports the specific LGA footprint dimensions. Verify thermal management requirements as per the datasheet guidelines for continuous operation under maximum power conditions.

Part Context

This filter belongs to Qualcomm's portfolio of RF front-end solutions for mobile communications. It addresses the need for efficient filtering in crowded spectrum environments, specifically targeting the 850 MHz band used extensively by carriers in the Americas.

Replacement Considerations

Consult official Qualcomm substitution lists for verified alternatives. Generic replacements may not match the precise electrical characteristics required for LTE Band 5 compliance.