ED-21915-000

Speakers Overview

The Knowles ED-21915-000 is a balanced armature receiver speaker designed for audio applications. It features a rectangular shape with side porting and top rectangular orientation. The component operates within a frequency range of 200 Hz to 5 kHz. Key electrical specifications include an impedance of 5.9 kOhms and a sensitivity of 104 dB. Physical dimensions are approximately 6.32 mm x 4.31 mm x 2.97 mm.

Speakers Feature Summary

• Balanced armature technology for high-fidelity audio reproduction
• Rectangular form factor with side port design
• Optimized frequency response for voice and audio signals

Speakers Applications

• Hearing aids
• Medical devices
• Industrial automation systems

Speakers Procurement Notes

Verify the specific revision code and packaging configuration against the official Knowles datasheet before ordering. Ensure compatibility with existing acoustic chambers and mounting structures. Confirm RoHS compliance status if required by your manufacturing standards. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Speakers Selection Notes

Select this component when a compact, high-sensitivity receiver is needed for space-constrained designs. The 5.9 kOhm impedance requires appropriate driver circuitry matching. Consider the 104 dB sensitivity for low-power applications. Evaluate the physical dimensions against the available enclosure space. Verify the frequency response meets the target audio clarity requirements.

Speakers Part Context

This component belongs to the Knowles Acoustics line of speakers and transducers. It is engineered for reliability in embedded systems where size and performance are critical. The balanced armature design offers distinct advantages over dynamic drivers in terms of efficiency and sound pressure level in small packages.

Speakers Replacement Considerations

Consult the official Knowles replacement guide for direct substitutes. Verify pinout, impedance, and dimensional compatibility before swapping. Generic equivalents may not match the acoustic performance or mechanical fit.