BL-27046-000

Overview

The Knowles BL-27046-000 is a piezoelectric analog microphone with an omnidirectional response pattern. It features solder pad termination and measures 7.92 x 5.59 x 2.28 mm. The device operates within a frequency range of 100 Hz to 10 kHz. Its sensitivity is specified as -69 dB ±3 dB at 74 dB SPL.

Feature Summary

• Piezoelectric transduction mechanism for analog audio signal generation
• Omnidirectional acoustic pickup pattern
• Surface-mount solder pad termination style

Applications

• Audio sensing modules
• Voice recognition systems
• Acoustic monitoring devices

Procurement Notes

Verify component status as the BL-27046-000 is listed as obsolete by major distributors. Confirm availability through authorized channels or secondary markets. Ensure compatibility with existing PCB footprints measuring approximately 7.92 x 5.59 mm. Validate that the analog output characteristics meet system requirements before procurement.

Selection Notes

Select this component for applications requiring a compact, omnidirectional piezoelectric microphone. The fixed sensitivity of -69 dB at 74 dB SPL suits general voice detection. Consider the analog output nature when designing interface circuits. The small form factor allows integration into space-constrained enclosures.

Part Context

This part belongs to the Knowles BL series of piezoelectric microphones. These components are designed for cost-effective audio sensing solutions. The series typically offers robust performance in standard acoustic environments. The BL-27046-000 represents a specific variant within this broader product family.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require design adjustments. Evaluate alternative omnidirectional piezoelectric microphones from current production lines.