EK-23032-C37

Microphones Overview

The Knowles EK-23032-C37 is a subminiature electret condenser microphone designed for high-performance audio capture in space-constrained environments. It features an omnidirectional polar pattern with a frequency response of 100 Hz to 5 kHz. The device exhibits a sensitivity of -53dB ±1dB at 94dB SPL and operates with a load resistance of 4.4 kOhms. Physical dimensions are approximately 17.75mm x 4.4mm, with a height of 2.65mm. It utilizes solder pads for mounting.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound pickup
• Subminiature form factor suitable for tight spaces
• Electret condenser technology for analog audio signal generation

Microphones Applications

• Portable electronic devices requiring compact audio input
• Voice recognition systems in constrained enclosures
• Consumer electronics with limited internal volume

Microphones Procurement Notes

Verify the specific suffix code against official Knowles documentation to ensure correct sensitivity and frequency response specifications. Confirm mechanical compatibility with PCB layout, particularly regarding solder pad placement and overall footprint dimensions. Ensure environmental conditions align with the component's operational limits for reliable performance.

Microphones Selection Notes

Select this component when physical size constraints preclude larger microphone formats. The 100 Hz to 5 kHz bandwidth suits voice-centric applications rather than full-range audio recording. Evaluate the need for omnidirectional coverage versus directional requirements before finalizing the design integration.

Microphones Part Context

This model belongs to the EK series of subminiature microphones from Knowles Precision Devices. The series emphasizes miniaturization while maintaining standard electret condenser performance characteristics. It serves as a solution for integrating audio capabilities into small consumer gadgets where traditional microphone sizes are impractical.

Microphones Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify that any replacement maintains identical electrical parameters and mechanical footprint to ensure seamless integration without redesigning the host circuit board or enclosure.