EK-23028-C09

Microphones Overview

The Knowles EK-23028-C09 is an omnidirectional electret condenser microphone designed for surface-mount assembly. It features a sensitivity of -53dB ±1dB at 94dB SPL and operates within a frequency range of 100 Hz to 5.5 kHz. The device requires a supply voltage between 0.9 VDC and 10 VDC with a typical current drain of 50 uA. Its compact dimensions are 5.56 mm in length, 3.98 mm in width, and 2.21 mm in depth.

Microphones Feature Summary

• Omnidirectional acoustic response for uniform sound capture from all directions
• Electret condenser technology providing high sensitivity and low noise performance
• Surface-mount design compatible with automated SMD/SMT manufacturing processes

Microphones Applications

• Voice recognition systems requiring precise audio input
• Consumer electronics such as smartphones and tablets
• Portable communication devices and headsets

Microphones Procurement Notes

Verify the specific suffix code against official Knowles documentation to ensure correct sensitivity and electrical characteristics. Confirm RoHS compliance status and moisture sensitivity level requirements before integration into the production line. Ensure the procurement channel provides valid traceability for quality assurance purposes.

Microphones Selection Notes

Select this component when an omnidirectional pickup pattern is required for voice applications. The wide operating voltage range allows flexibility in power supply design. Consider the physical footprint constraints and the need for surface-mount compatibility during the PCB layout phase.

Microphones Part Context

This microphone belongs to the EK/EY series of audio devices manufactured by Knowles. The series is characterized by small form factors suitable for space-constrained portable electronics. It serves as a standard solution for capturing analog audio signals in modern consumer hardware.

Microphones Replacement Considerations

Consult official substitution guides for equivalent models within the EK series. Verify that any alternative part matches the dimensional envelope and electrical specifications exactly.