EK-23977-C36

Microphones Overview

The EK-23977-C36 is an omnidirectional electret condenser microphone manufactured by Knowles. It operates at a supply voltage of 1.3 VDC with a current rating of 50 uA. The device features a sensitivity of -53 dBA and an impedance of 4.4 kOhms. Its frequency response spans from 100 Hz to 10 kHz. The physical dimensions are 5.56 mm in length, 3.98 mm in width, and 2.21 mm in depth.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound pickup
• Electret condenser transducer technology
• Low power consumption suitable for battery-operated devices

Microphones Applications

• Voice pickup in noisy environments
• Mobile device audio input
• Compact consumer electronics

Microphones Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with Knowles or authorized distributors before procurement. Confirm that the solder pad termination style matches your PCB layout requirements. Ensure the operating voltage and current specifications align with your system's power budget to guarantee reliable performance.

Microphones Selection Notes

Select this component when an omnidirectional response is required within a compact form factor. The low operating voltage makes it suitable for portable applications. Verify that the 4.4 kOhm impedance is compatible with your preamplifier input stage. Consider the 100 Hz to 10 kHz frequency range against your specific audio bandwidth needs.

Microphones Part Context

This microphone belongs to Knowles' portfolio of miniature acoustic sensors designed for integration into space-constrained electronic devices. It utilizes standard surface-mount or through-hole assembly techniques depending on the specific package variant available. The product line emphasizes high reliability and consistent acoustic performance across manufacturing batches.

Microphones Replacement Considerations

The EA-21867-C36 is a documented alternative with similar dimensions but different sensitivity (-54 dBA) and impedance (3.5 kOhms). Verify electrical compatibility and acoustic requirements before substitution.