B39431B3909U410

Overview

The B39431B3909U410 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm for RF front-end applications. It operates at a center frequency of 429.45MHz with an insertion loss of 2.2dB. The component utilizes a 6-SMD, no-lead package measuring 0.197 inches in length and 0.138 inches in width. Designed for remote control systems, it supports surface mount installation and complies with RoHS3 standards.

Feature Summary

• Utilizes Surface Acoustic Wave technology for signal filtering
• Optimized for remote control RF applications
• Compact surface-mount design for space-constrained PCBs

Applications

• Remote control systems
• RF front-end modules

Procurement Notes

Verify the specific datasheet version to confirm exact bandwidth and impedance parameters, as these are critical for circuit matching. Ensure the 6-SMD footprint aligns with the target PCB layout. Confirm RoHS3 compliance status if required by regional regulations. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a SAW filter is required for 429.45MHz remote control signals. The 2.2dB insertion loss offers a balance between signal attenuation and power efficiency. The 6-pin SMD package facilitates automated assembly. Consider thermal management requirements during PCB design, although SAW filters generally have low power dissipation.

Part Context

This component belongs to the B39431 series of RF SAW filters from Qualcomm. The series provides various center frequencies and package options tailored for different wireless communication protocols. This specific model targets the 429.45MHz band, distinct from other variants like the B39431B3710U410 which operates at 433.92MHz.

Replacement Considerations

Public confirmed substitute part numbers were not identified in the provided documentation.