BL-23497-000

Overview

The Knowles BL-23497-000 is a piezoelectric analog microphone designed for omnidirectional sound capture. It operates within a frequency range of 20 Hz to 10 kHz and features a sensitivity of -69 dB ±3 dB at 74 dB SPL. The component presents an impedance of 4 kOhms and draws a current rating of 160 uA. It utilizes wire leads for connection and is supplied in bulk packaging, serving as a compact acoustic transducer for electronic audio applications.

Feature Summary

• Piezoelectric transduction mechanism for analog signal output
• Omnidirectional directional properties for uniform sound pickup
• Wire lead termination for direct circuit integration

Applications

• General purpose audio sensing circuits
• Voice recognition input devices
• Environmental noise monitoring systems

Procurement Notes

Verify the manufacturer part number BL-23497-000 against official Knowles documentation to ensure authenticity. Confirm that the received components match the specified piezoelectric type and analog output characteristics. Check for physical integrity of the wire leads and ensure the package type aligns with project requirements before final acceptance.

Selection Notes

Select this component when an omnidirectional response is required for broad-spectrum audio detection. The 4 kOhm impedance and specific sensitivity profile suit applications where moderate gain stages are available. Ensure the operating environment supports the mechanical stability of wire-lead mounted piezoelectric elements without excessive vibration stress.

Part Context

This model belongs to the Knowles BL series of microphones, which focuses on piezoelectric technology for cost-effective audio solutions. The series provides various configurations for different mounting and electrical needs, positioning this unit as a standard option for basic analog audio capture tasks requiring wide angular coverage.

Replacement Considerations

Consult official Knowles substitution guides for verified equivalents. Cross-reference impedance and sensitivity specifications carefully when evaluating alternative piezoelectric microphones to maintain system performance consistency.