ED-27488-000

Speakers Overview

The Knowles ED-27488-000 is a high-performance electret condenser microphone capsule designed for precision audio capture. It features a back-electret design with a specific diaphragm construction optimized for sensitivity and frequency response characteristics suitable for professional communication devices. The component integrates a built-in JFET impedance converter to provide low output impedance, ensuring signal integrity over cable runs. Its physical dimensions and mounting configuration allow for integration into compact acoustic assemblies requiring reliable voice transmission.

Speakers Feature Summary

• Back-electret condenser technology for consistent acoustic performance
• Integrated JFET impedance converter for low output impedance
• Optimized diaphragm construction for targeted frequency response

Speakers Applications

• Professional two-way radio handsets
• Industrial communication headsets
• Specialized voice recognition terminals

Speakers Procurement Notes

Verify the exact revision code and suffix against the manufacturer's current datasheet before ordering, as manufacturing updates may alter mechanical tolerances or electrical specifications without changing the base model number. Ensure compatibility with existing PCB footprint and biasing requirements specified in the official documentation.

Speakers Selection Notes

Select this component when a back-electret topology is required for stable long-term performance in harsh environments. Confirm that the available supply voltage matches the internal JFET biasing needs. Evaluate the acoustic housing design to ensure it aligns with the microphone's pressure gradient characteristics and porting requirements defined in the technical data.

Speakers Part Context

This part belongs to Knowles' portfolio of precision microphone capsules engineered for demanding communication applications. It represents a specialized solution within their broader lineup, focusing on durability and signal clarity rather than consumer-grade cost optimization. The design prioritizes acoustic consistency across temperature variations typical in industrial settings.

Speakers Replacement Considerations

Consult official substitution guides for direct equivalents. Verify pinout compatibility and acoustic sensitivity curves before replacing with alternative brands. Mechanical mounting differences may require adapter solutions if cross-referencing non-Knowles components.