EA-21986-000

Microphones Overview

The Knowles EA-21986-000 is an analog electret condenser microphone capsule designed for omnidirectional sound pickup. It features a rectangular form factor with dimensions of 5.56 x 3.98 x 2.21 mm and utilizes solder pads for mounting. The device operates within a frequency range of 100 Hz to 5 kHz, providing a sensitivity of -59 dB ±3 dB at 74 dB SPL. This component is engineered for reliable audio signal capture in compact electronic assemblies.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound reception from all directions
• Electret condenser technology integrated into a compact rectangular capsule
• Solder pad termination for direct surface-mount integration

Microphones Applications

• Consumer electronics audio input modules
• Voice recognition systems requiring omnidirectional pickup
• Compact recording devices and digital voice recorders

Microphones Procurement Notes

Verify the specific revision level and packaging configuration against the manufacturer's current documentation before procurement. Confirm that the solder pad layout matches the target PCB footprint exactly. Ensure environmental compliance requirements align with the latest RoHS status indicated in the official datasheet. Cross-reference the part number with authorized distributors to guarantee authenticity and traceability.

Microphones Selection Notes

Select this component when an omnidirectional response is required within a limited spatial envelope. The fixed sensitivity and frequency range suit applications prioritizing voice clarity over wideband audio fidelity. Evaluate the mechanical constraints of the 5.56 x 3.98 x 2.21 mm package against available board space. Consider the solder pad interface for assembly compatibility with standard reflow processes.

Microphones Part Context

This microphone capsule belongs to Knowles' portfolio of electret condenser components, which are widely utilized in portable audio equipment. The EA-21986-000 represents a specialized solution for OEMs needing a pre-assembled transducer element rather than discrete microphone components. Its design focuses on minimizing assembly complexity while maintaining consistent acoustic performance across production batches.

Microphones Replacement Considerations

No public confirmed substitute part numbers are available.