B39431B3771Z810

Overview

The B39431B3771Z810 is a Surface Acoustic Wave (SAW) filter designed for remote control applications. It operates at a center frequency of 434.42MHz with a bandwidth of 120kHz and an insertion loss of 1.9dB. The component utilizes an 8-SMD, no-lead package measuring 3.80mm x 3.80mm x 1.50mm. It is classified under the AEC-Q200 grade and complies with RoHS3 standards. This product is currently obsolete.

Feature Summary

• Surface Acoustic Wave technology for RF signal filtering
• Optimized for remote control application environments
• Compact surface-mount design for board integration

Applications

• Remote control systems
• ISM band signal processing

Procurement Notes

This component is officially marked as obsolete by the manufacturer. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or secondary markets. Ensure that any available units match the original specifications and packaging requirements for legacy system maintenance.

Selection Notes

Engineers replacing this part must account for its obsolete status. Selection of alternatives requires matching the 434.42MHz center frequency and 120kHz bandwidth constraints. Verify that substitute components support the same 8-SMD footprint and meet the required AEC-Q200 reliability standards for remote control hardware.

Part Context

The B39431B3771Z810 belongs to the B3771 series of SAW filters from Qualcomm's RF front-end portfolio. These components are engineered for specific ISM band frequencies used in wireless remote control devices. The series provides standardized filtering solutions for consumer electronics requiring reliable RF signal integrity.

Replacement Considerations

Public confirmed substitute part numbers: B39431B3775Z810, B39431R0820H210.