B39431B3900U410

Overview

The B39431B3900U410 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm for RF front-end applications. It operates at a center frequency of 433.92MHz, specifically designed for remote control systems. The component features an insertion loss of 1.2dB and utilizes a 6-SMD, no-lead package with dimensions of 3.00mm x 3.00mm x 1.10mm. It complies with RoHS3 standards and holds an MSL rating of 1.

Feature Summary

• Utilizes Surface Acoustic Wave technology for efficient signal filtering in the 433MHz band.
• Engineered for low insertion loss to maintain signal integrity in remote control circuits.
• Designed in a compact surface-mount package suitable for space-constrained PCB layouts.

Applications

• Remote control transmitters
• RF front-end modules
• Wireless sensor networks

Procurement Notes

Verify the manufacturer part number against official Qualcomm documentation to ensure authenticity. Confirm that the specific suffix matches the required electrical specifications for your design. Check for updated Product Change Notices regarding manufacturing origin or material composition changes prior to final procurement decisions.

Selection Notes

Select this component when a low-loss SAW filter is required for 433.92MHz remote control applications. Ensure the 6-SMD footprint aligns with the target PCB layout. Consider the 1.2dB insertion loss specification relative to system sensitivity requirements compared to alternative filter technologies.

Part Context

This component belongs to the B39431 series of RF SAW filters from Qualcomm. These devices are part of a broader portfolio of front-end solutions aimed at optimizing performance in wireless communication systems. The series typically offers various center frequencies and bandwidth options tailored for specific regional remote control standards.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided source data. Engineers should consult official Qualcomm documentation for qualified alternatives or cross-reference compatible components based on exact electrical parameter matching.