EM-23047-000

Microphones Overview

The Knowles EM-23047-000 is an omnidirectional electret condenser microphone designed for analog audio signal capture. It operates at a rated voltage of 1.3 V with a current rating of 50 uA. The device features a sensitivity of -58.5 dBA and an impedance of 4.4 kOhms. Its frequency range spans from 300 Hz to 5.5 kHz. The component utilizes SMD/SMT termination via solder pads and has a square shape with dimensions of 3.57 mm in length, 3.57 mm in width, and 2.21 mm in depth.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound pickup
• Electret condenser transducer technology
• Surface-mount solder pad termination

Microphones Applications

• Voice recognition systems
• Consumer electronics audio input
• Telecommunication devices

Microphones Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Knowles or authorized distributors before procurement. Confirm that the operating voltage and current requirements align with the target circuit design. Ensure proper handling procedures are followed due to the electrostatic sensitive nature of the electret condenser element.

Microphones Selection Notes

Select this component when an omnidirectional response is required within a limited frequency band up to 5.5 kHz. The low profile and small footprint suit space-constrained portable applications. Verify compatibility with existing biasing circuits given the 1.3 V operating requirement and 4.4 kOhm impedance.

Microphones Part Context

This part belongs to the Knowles EM series of microphones. It is an electret condenser type offering analog output. The series is commonly used in compact electronic devices requiring reliable voice capture. The specific model provides standardized electrical characteristics suitable for general-purpose audio sensing tasks.

Microphones Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Knowles technical support for direct replacements or cross-reference compatible omnidirectional electret microphones with matching electrical parameters.