EK-23028-000

Microphones Overview

The Knowles EK-23028-000 is an omnidirectional electret condenser microphone designed for surface-mount technology (SMD/SMT) applications. It features a compact physical footprint measuring 5.56 mm in length, 3.98 mm in width, and 2.21 mm in depth. The device operates within a frequency range of 300 Hz to 5.7 kHz and delivers a sensitivity of -57 dB ±3dB referenced at 74 dB SPL. Electrical requirements include a supply voltage range of 0.9 V to 10 V and a typical supply current of 50 µA. The component utilizes solder pads for termination and is packaged in bulk quantities.

Microphones Feature Summary

• Omnidirectional acoustic response for uniform sound capture from all directions
• Electret condenser transducer technology providing analog audio output
• Surface-mount design compatible with automated assembly processes
• Wide operating voltage range supporting low-power system integration

Microphones Applications

• Voice recognition systems requiring consistent directional pickup
• Portable consumer electronics with limited board space constraints
• Audio input modules for communication devices
• General-purpose sound detection circuits

Microphones Procurement Notes

Verify the specific suffix code against official Knowles documentation to confirm exact sensitivity and port configuration. Ensure compatibility with SMD reflow profiles and check RoHS compliance status through certified datasheets before finalizing procurement specifications.

Microphones Selection Notes

Select this component when an omnidirectional pattern is required for voice-band applications. Consider the -57 dB sensitivity and 50 µA current draw for power budget calculations. Verify that the 300 Hz to 5.7 kHz frequency response aligns with target audio quality requirements.

Microphones Part Context

This part belongs to the EK series of microphones manufactured by Knowles Electronics. The series focuses on miniaturized audio solutions suitable for modern electronic devices. The EK-23028-000 variant specifically denotes the standard sensitivity and packaging configuration within this product line.

Microphones Replacement Considerations

EK-23028-C36 is a documented alternative within the same family. Verify electrical parameters and mechanical dimensions against original requirements before substitution.