B39431R770U310

Overview

The B39431R770U310 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm, designed for general-purpose RF applications. It operates at a center frequency of 433.81 MHz with a bandwidth of 1.3 dB. The component is housed in a compact SMD package measuring 2.4 mm x 1.6 mm and features a height of 0.55 mm. It is RoHS compliant and classified under ECCN EAR99.

Feature Summary

• Utilizes Surface Acoustic Wave technology for efficient signal filtering
• Optimized for general-purpose RF front-end applications
• Compact surface-mount design suitable for space-constrained devices

Applications

• General purpose RF filtering
• Remote control systems
• ISM band communication modules

Procurement Notes

Verify the specific datasheet version as this component may be obsolete or subject to product change notices. Confirm availability through authorized distributors, as stock levels fluctuate. Ensure the ordering suffix matches the required packaging format. Cross-reference with official replacement part numbers if direct procurement is unavailable due to end-of-life status.

Selection Notes

Select this component for applications requiring precise filtering at 433.81 MHz. Consider the 1.3 dB bandwidth specification for signal integrity requirements. Evaluate the small footprint against board space constraints. Verify compatibility with existing RF circuit designs before integration.

Part Context

This part belongs to the Qualcomm B39431 series of SAW filters. These components are widely used in wireless communication devices. The series offers various frequency options tailored for different global standards. This specific model targets the 433 MHz ISM band.

Replacement Considerations

B39431R770H110 is listed as a similar substitute. Verify electrical parameters and pinout compatibility before substitution.