B39921B3705Z810

Overview

The B39921B3705Z810 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm. It operates at a center frequency of 914.7MHz with an insertion loss of 4dB. The component is housed in an 8-SMD, no-lead package measuring 3.80mm x 3.80mm with a maximum height of 1.50mm. Designed for wireless audio applications, it complies with RoHS3 standards and has a Moisture Sensitivity Level (MSL) of 1.

Feature Summary

• Utilizes Surface Acoustic Wave technology for signal filtering
• Designed specifically for wireless audio applications
• Supports surface mount installation

Applications

• Wireless audio systems

Procurement Notes

This component is officially obsolete and no longer in production. Verification of availability should focus on the recommended substitute part number B39921B3726U410 from the same manufacturer. Confirm that the replacement meets all original electrical specifications before integration into existing designs.

Selection Notes

Selection requires identifying a suitable replacement due to the end-of-life status of this specific model. Engineers must verify that the substitute component maintains compatibility with the intended wireless audio application requirements while adhering to the same physical footprint constraints.

Part Context

This device belongs to the Qualcomm RF front-end filters portfolio, which includes discrete high-performance duplexers and SAW filters. These components are engineered to address RF design challenges using advanced acoustic technologies for mobile and IoT connectivity solutions.

Replacement Considerations

The manufacturer-recommended substitute is B39921B3726U410. Verify functional equivalence for the target application before adoption.