B39321R0903H110

Overview

The B39321R0903H110 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm RF360. It operates at a center frequency of 315.5 MHz with a 50 Ohm impedance. The component utilizes an 8-SMD, no-lead package measuring 3 mm x 3 mm x 1 mm. It supports board mount installation via SMD/SMT termination and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Surface Acoustic Wave technology for signal conditioning
• Designed for general purpose RF applications
• Compact surface mount form factor

Applications

• Power supplies
• Battery chargers
• Portable devices
• Energy-efficient systems

Procurement Notes

Verify the specific manufacturer designation, as sources cite both Qualcomm and RF360. Confirm the exact operating frequency specification, noting discrepancies between 315 MHz and 315.5 MHz in available documentation. Ensure compatibility with the 8-SMD package dimensions and thermal requirements before integration into the final design.

Selection Notes

Select this component for applications requiring a 315.5 MHz SAW filter in a compact 3x3 mm footprint. Consider the wide operating temperature range suitable for industrial or automotive environments. Verify that the 50 Ohm impedance matches the system requirements and that the SMD mounting method aligns with the PCB assembly process.

Part Context

This part belongs to the B39321 series of RF front-end filters from Qualcomm. These components are engineered for multimode modem-RF systems across mobile, PC, and IoT applications. The series leverages industry-leading technology to provide high-performance filtering solutions for modern wireless communication standards.

Replacement Considerations

The B39321R0981U410 is listed as a parameter-equivalent substitute, although it is marked as obsolete. The B39321R0961H110 is also identified as a parameter-equivalent replacement option.