FK-23989-000

Speakers Overview

The Knowles FK-23989-000 is a dual balanced armature receiver classified under speakers and transducers. It features a rectangular form factor with dimensions of 5.00mm x 2.73mm (0.197" L x 0.108" W). The component operates within a frequency range of 200 Hz to 6 kHz and has an impedance of 145 Ohms. It delivers an efficiency of 95 dBA and utilizes a magnetic design with solder pads for termination.

Speakers Feature Summary

• Dual balanced armature receiver architecture
• Rectangular housing with side port location
• Magnetic internal design

Speakers Applications

• Hearing aids
• In-ear monitors
• Personal audio devices

Speakers Procurement Notes

Verify the specific datasheet version for the FK-23989-000 to confirm RoHS compliance status and detailed electrical tolerances. Ensure compatibility with existing acoustic chambers and PCB layouts due to the specific rectangular footprint and side-port orientation. Cross-reference manufacturer documentation for any recent packaging or handling updates.

Speakers Selection Notes

Select this component when a high-efficiency, low-profile balanced armature receiver is required for compact audio applications. The 145 Ohm impedance and 95 dBA sensitivity suit designs prioritizing sound pressure level in small enclosures. Verify that the 200 Hz to 6 kHz bandwidth aligns with the target frequency response requirements.

Speakers Part Context

This part belongs to Knowles' portfolio of precision audio transducers, specifically designed for miniaturized hearing and personal audio equipment. It represents a standard rectangular balanced armature solution, distinct from their circular or custom-shaped receivers, offering a balance between acoustic performance and mechanical fit for tight spaces.

Speakers Replacement Considerations

Consult official substitution guides for equivalent rectangular balanced armature receivers with matching impedance and sensitivity. Verify dimensional compatibility before replacing, as port locations and mounting pad configurations may differ across manufacturers.