FK-26433-000

Speakers Overview

The Knowles FK-26433-000 is a balanced armature receiver speaker designed for audio applications. It features a side rectangular port configuration and operates within a frequency range of 200 Hz to 6.6 kHz. The component has an impedance of 940 Ohms and delivers a sound pressure level (SPL) of 122 dB. This micro-speaker is engineered for compact electronic devices requiring high-fidelity audio output in a small form factor.

Speakers Feature Summary

• Balanced armature transducer technology for precise audio reproduction
• Side-port rectangular design optimized for space-constrained enclosures
• High sensitivity performance with 122 dB SPL rating

Speakers Applications

• Mobile communication handsets
• Wireless earpieces and headsets
• Portable medical diagnostic devices

Speakers Procurement Notes

Verify the specific revision status and datasheet version before integration, as manufacturer specifications may undergo updates. Confirm mechanical footprint compatibility with your PCB layout and ensure acoustic sealing requirements are met during assembly. Check for any end-of-life notifications or discontinuance alerts from Knowles to guarantee long-term supply chain stability for production runs.

Speakers Selection Notes

Select this component when a high-sensitivity, low-power balanced armature solution is required for narrowband voice or limited-range audio. The 940 Ohm impedance matches specific driver circuits, while the 200 Hz to 6.6 kHz bandwidth suits voice-centric applications. Evaluate enclosure size constraints against the rectangular side-port geometry to ensure optimal acoustic coupling and minimal distortion in the final device.

Speakers Part Context

This part belongs to Knowles' portfolio of precision audio components, specifically their balanced armature receivers. These components are widely used in consumer electronics where miniaturization and audio clarity are critical. The FK series represents established designs known for reliability in portable devices, distinguishing them from dynamic drivers through their electromagnetic armature mechanism.

Speakers Replacement Considerations

Consult official Knowles documentation for direct cross-references. Ensure any substitute maintains the 940 Ohm impedance and similar SPL characteristics to preserve circuit balance.