B39431B3778Z810

Overview

The B39431B3778Z810 is a Surface Acoustic Wave (SAW) bandpass filter manufactured by Qualcomm. It operates at a center frequency of 433.42 MHz, designed for Short Range Device applications within the ISM band. The component utilizes an 8-SMD, no-lead surface mount package with dimensions of 3.80mm x 3.80mm and a maximum height of 1.50mm. It meets AEC-Q200 qualification standards and complies with RoHS3 regulations. The device features Moisture Sensitivity Level 1 and carries an ECCN classification of EAR99.

Feature Summary

• Surface Acoustic Wave technology for efficient signal conditioning in RF front-end circuits
• AEC-Q200 automotive grade qualification ensuring reliability under rigorous environmental conditions
• Compact 8-SMD footprint optimized for space-constrained short-range device designs

Applications

• Short Range Device (SRD) systems
• ISM band wireless communication modules
• Remote control transceivers

Procurement Notes

Verify the specific manufacturer lot code and date code upon receipt to ensure compliance with current production standards. Confirm that the received components match the exact part number designation, as this model may be subject to obsolescence notices or replacement by newer series variants from the same manufacturer family. Check for any recent Product Change Notifications regarding material composition or packaging updates.

Selection Notes

Select this component when a 433.42 MHz center frequency is required for SRD applications. Ensure the design accommodates the 8-SMD package dimensions and thermal requirements. Verify that the system bandwidth requirements align with the SAW filter characteristics. Consider availability status, as older models may have limited supply chains compared to active replacements.

Part Context

This component belongs to the B39431 series of RF filters developed by Qualcomm's RF front-end division. The series provides various SAW solutions tailored for global ISM bands. This specific variant targets the 433 MHz region, distinguishing itself from other series members operating at different frequencies such as 433.92 MHz or 434.42 MHz through its precise center frequency specification.

Replacement Considerations

Public sources indicate this part is obsolete. No specific substitute part numbers are confirmed in the provided documentation.