EL-23078-D44

Microphones Overview

The Knowles EL-23078-D44 is an electret condenser microphone designed for unidirectional sound pickup. It features a sensitivity of -52 dB relative to 1V/Pa at 74 dB SPL, with a tolerance of ±2 dB. The device operates within a frequency range of 100 Hz to 10 kHz and draws a maximum current of 50 µA. Its physical dimensions are 4.0 mm x 5.59 mm x 2.28 mm, utilizing solder pads for surface mount integration.

Microphones Feature Summary

• Unidirectional acoustic design for focused sound capture
• Electret condenser technology for stable analog output
• Compact surface-mount form factor

Microphones Applications

• Consumer audio recording devices
• Voice recognition systems
• Communication equipment

Microphones Procurement Notes

Verify the specific suffix designation against the manufacturer's latest datasheet to ensure correct sensitivity and port configuration. Confirm that the solder pad footprint matches the target PCB layout. Ensure supply chain partners provide valid RoHS compliance documentation consistent with current environmental regulations.

Microphones Selection Notes

Select this component when a compact, low-power unidirectional microphone is required for voice-band applications. Evaluate the -52 dB sensitivity against ambient noise levels in the target environment. Consider the 100 Hz lower frequency limit for suitability in speech-focused scenarios rather than full-range audio reproduction.

Microphones Part Context

This model belongs to Knowles' portfolio of miniature electret microphones. It is engineered for high-volume consumer electronics where space constraints and power efficiency are critical. The series supports standard surface-mount assembly processes, facilitating automated manufacturing in modern electronic device production lines.

Microphones Replacement Considerations

Consult official cross-reference lists for direct equivalents. Verify pinout compatibility and mechanical height restrictions before substituting with alternative manufacturers' components to ensure seamless integration into existing designs.