ED-21914-000

Speakers Overview

The ED-21914-000 is a balanced armature speaker manufactured by Knowles. It features an impedance of 2.9 kOhms and a sound pressure level of 106 dB. The device operates within a frequency range of 200 Hz to 5 kHz. It utilizes a top port configuration with a rectangular form factor. The physical dimensions are 6.3 mm in length, 4.29 mm in width, and 6.3 mm in height.

Speakers Feature Summary

• Balanced armature transducer technology for high-fidelity audio reproduction
• Top port acoustic design optimized for directional sound output
• High sensitivity rating of 106 dB for efficient signal conversion
• Rectangular package geometry suitable for compact electronic assemblies

Speakers Applications

• Hearing aid devices requiring miniaturized audio components
• Medical diagnostic equipment utilizing acoustic sensors
• Industrial communication headsets demanding high clarity
• Consumer electronics with strict size constraints

Speakers Procurement Notes

Verify the specific acoustic performance curves against your application requirements before finalizing the order. Ensure that the PCB layout accommodates the 6.3mm x 4.29mm footprint and allows adequate space for the top port to prevent acoustic loading issues. Confirm that the driving circuitry can handle the 2.9 kOhm impedance load without distortion. Check for any RoHS compliance documentation if required by your regional regulations.

Speakers Selection Notes

Select this component when a high-sensitivity, miniature balanced armature speaker is required for voice or narrowband audio applications. The 2.9 kOhm impedance suggests compatibility with specific driver circuits designed for high-impedance loads. Consider the 200 Hz to 5 kHz frequency response to ensure it covers the necessary audio spectrum for your target use case. Evaluate the mechanical stability of the rectangular package for vibration resistance in the final assembly.

Speakers Part Context

This part belongs to Knowles' portfolio of precision audio transducers. Balanced armature speakers are commonly used in applications where size and weight are critical factors. The ED series typically targets the hearing aid and medical device markets, offering reliable performance in small form factors. Knowles specializes in micro-acoustic solutions for healthcare and consumer electronics.

Speakers Replacement Considerations

Consult official Knowles documentation for direct cross-references. Alternative models may include other parts from the ED series with similar impedance and dimensional profiles. Verify that any substitute maintains the 106 dB sensitivity and 2.9 kOhm impedance to ensure circuit compatibility.