B39311B3729H110

Overview

The B39311B3729H110 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm, designed for remote control applications. It operates at a center frequency of 313.85MHz with a bandwidth of 120kHz. The component features an insertion loss of 2.9dB and is housed in a compact 6-SMD, no-lead package measuring 3.00mm x 3.00mm x 1.00mm. It meets AEC-Q200 automotive qualification standards and complies with RoHS3 specifications.

Feature Summary

• Optimized for remote control RF signal filtering
• Automotive-grade reliability via AEC-Q200 qualification
• Compact surface-mount design for space-constrained PCBs

Applications

• Remote keyless entry systems
• Automotive passive entry and start systems
• Industrial remote control interfaces

Procurement Notes

Verify the specific suffix H110 to confirm the 120kHz bandwidth variant, as other suffixes may indicate different electrical characteristics. Confirm current availability status as distribution channels vary. Ensure compatibility with existing PCB footprint dimensions of 3.00mm x 3.00mm during integration planning.

Selection Notes

Select this component when a narrow 120kHz bandwidth is required for 313.85MHz remote control signals. The AEC-Q200 rating makes it suitable for automotive environments where higher reliability is mandated compared to consumer-grade alternatives. Consider the 6-pin SMD package size against available board real estate.

Part Context

This part belongs to Qualcomm's RFFE SAW filter portfolio, specifically targeting the 315MHz ISM band used globally for remote controls. It complements broader families like the B39311 series, offering specialized filtering for automotive and industrial security applications requiring precise frequency rejection.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical parameters carefully if considering alternative manufacturers' SAW filters for the 313.85MHz band.