ED-26821-000

Speakers Overview

The Knowles ED-26821-000 is a subminiature balanced armature speaker designed for high-efficiency audio reproduction in space-constrained applications. It operates within a frequency range of 200 Hz to 4.4 kHz and features a nominal impedance of 10.2 Ohms. The device utilizes side-port rectangular packaging with dimensions of 6.32 mm in length, 4.31 mm in width, and 2.97 mm in height. It delivers a sound pressure level (SPL) of approximately 107 dB, ensuring clear audio output while minimizing distortion and feedback.

Speakers Feature Summary

• Balanced armature technology for high efficiency and stability
• Side-port rectangular design optimized for space-constrained environments
• Low distortion and feedback characteristics for clearer audio

Speakers Applications

• Space-constrained hearing aids
• Subminiature audio devices requiring high fidelity
• Medical audio equipment

Speakers Procurement Notes

Verify the specific acoustic parameters and dimensional tolerances against the official Knowles datasheet before integration. Confirm that the 10.2 Ohm impedance matches your driver circuit requirements. Ensure the side-port orientation aligns with your enclosure design to maintain specified SPL performance. Check RoHS compliance status if required by your manufacturing standards.

Speakers Selection Notes

Select this component when miniaturization is critical without sacrificing audio clarity. The balanced armature architecture offers superior efficiency compared to dynamic drivers in small form factors. Consider the 200 Hz to 4.4 kHz bandwidth suitability for voice-centric applications. Evaluate the 107 dB SPL capability against the required volume levels for the target application environment.

Speakers Part Context

This part belongs to Knowles' subminiature speaker lineup, which leverages balanced armature technology for compact audio solutions. These components are engineered for reliability and consistent performance in medical and consumer electronics where size limitations preclude larger transducers.

Speakers Replacement Considerations

Consult official Knowles documentation for direct substitutes. Verify compatibility of impedance, frequency response, and physical dimensions with any alternative balanced armature speakers from other manufacturers.