B39851B8642P810

Overview

The B39851B8642P810 is a Surface Acoustic Wave (SAW) duplexer manufactured by Qualcomm RF360. Designed for Radio Frequency Front-End (RFFE) applications, this component facilitates signal separation in wireless communication systems. It utilizes a Small Outline Device (SMD) package with dimensions of 2.0mm x 1.6mm, enabling compact integration into mobile devices and small cell infrastructure. The device supports 4G and 5G frequency bands, specifically targeting the 26GHz range for advanced cellular connectivity.

Feature Summary

• Integrates SAW technology for efficient signal filtering and duplexing in RFFE architectures
• Optimized for compact board space with a 2.0mm x 1.6mm SMD footprint
• Supports simultaneous transmission and reception in 4G and 5G small cell environments

Applications

• 4G LTE small cell base stations
• 5G NR small cell deployments
• Mobile device RF front-end modules

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the component meets all environmental and safety standards required for your target market. Ensure compatibility with your PCB layout and assembly processes, as surface mount components require precise handling. Cross-reference the full part number to avoid confusion with similar variants in the B39851 series.

Selection Notes

Select this component when designing for high-frequency 5G and 4G small cell applications requiring a minimal footprint. The 2.0x1.6mm size is critical for dense circuit layouts in modern telecommunications hardware. Ensure the design supports the specific electrical characteristics of the 26GHz band operation. This part is suitable for engineers prioritizing spatial efficiency without compromising RF performance in compact form factors.

Part Context

This component belongs to the Qualcomm RF360 portfolio of radio frequency front-end filters. The B39851 series is engineered for next-generation wireless infrastructure and mobile handsets. These parts are integral to managing complex spectrum allocations in modern cellular networks, providing essential isolation between transmit and receive paths.

Replacement Considerations

Consult official Qualcomm documentation for qualified substitute part numbers within the B39851 family. Verify pinout and electrical parameter compatibility before substituting any alternative components.