EF-27428-116

Speakers Overview

The Knowles EF-27428-116 is a side-port rectangular receiver speaker designed for audio applications. It features a balanced armature transducer architecture with an impedance of 92.5 ohms. The physical dimensions are 7.87 mm in length, 5.59 mm in width, and 4.01 mm in height. The device provides a sensitivity level of 126 dB SPL. This component is manufactured by Knowles, a pioneer in balanced armature technology.

Speakers Feature Summary

• Rectangular form factor with side-mounted acoustic port
• Balanced armature transducer design
• High sensitivity output capability

Speakers Applications

• Receiver speakers in communication devices
• Specialty audio transducers
• Hearing aid products

Speakers Procurement Notes

Verify the specific datasheet version to confirm RoHS compliance status and exact mechanical tolerances. Ensure the 92.5-ohm impedance matches the target circuit requirements. Confirm that the side-port orientation aligns with the enclosure design constraints before finalizing procurement orders.

Speakers Selection Notes

Select this component when a compact rectangular receiver with high sensitivity is required. The 92.5-ohm impedance specification must be compatible with the driving electronics. Consider the side-port configuration for acoustic coupling within tight spatial envelopes typical of modern portable electronic devices.

Speakers Part Context

Knowles is recognized as the originator of balanced armature technology. This company applies its expertise to manufacturing receiver speakers, specialty transducers, and hearing aid products. The EF-27428-116 represents their application of these technologies in a standardized rectangular package format.

Speakers Replacement Considerations

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