CI-28268-028

Overview

The Knowles CI-28268-028 is a general-purpose speaker designed for audio applications. It features an impedance of 120 Ohms and operates within a frequency range of 200 Hz to 5.5 kHz. The component utilizes a side rectangular design with a port located on the end. This configuration supports high-fidelity sound reproduction in space-constrained environments, such as hearing aids, while reducing distortion and feedback.

Feature Summary

• Side rectangular physical design
• End-mounted acoustic port
• High-fidelity sound reproduction capability
• Distortion and feedback reduction

Applications

• Space-constrained hearing aids
• Audio devices requiring reduced distortion
• General purpose audio output

Procurement Notes

Verify the specific impedance rating against system requirements, as sources indicate variations between 51 Ohms and 120 Ohms for this model designation. Confirm the presence of the end port and side rectangular form factor matches the mechanical constraints of the target enclosure. Ensure compatibility with the specified frequency response range for the intended audio application.

Selection Notes

Select this component when a compact, side-rectangular speaker with an end port is required. Consider the impedance specifications carefully due to reported discrepancies in available data. Evaluate suitability for hearing aid applications where space limitations and audio clarity are critical factors.

Part Context

This part belongs to the Knowles Balance Armature Drivers series, which provides premium sound solutions. The CI series is specifically engineered for high-performance audio in small form factors, targeting markets like hearing aids where fidelity and size are paramount.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.