FK-30040-000

Speakers Overview

The Knowles FK-30040-000 is a balanced armature receiver designed for high-fidelity audio applications. It features a rectangular shape with side port termination and solder pad connections. The component operates within a frequency range of 200 Hz to 6.3 kHz, delivering a sound pressure level of 93 dBA. Its electrical impedance is specified at 351 Ohms. The physical dimensions are 5.00 mm in length and 2.73 mm in width, utilizing magnetic technology for efficient sound reproduction in compact spaces.

Speakers Feature Summary

• Balanced armature design for high-fidelity sound reproduction
• Side port configuration for directional acoustic output
• Compact rectangular form factor suitable for space-constrained devices

Speakers Applications

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

Speakers Procurement Notes

Verify the specific datasheet version from Knowles Electronics to confirm mechanical tolerances and acoustic performance curves. Ensure compatibility with existing PCB footprints and acoustic chambers. Check RoHS compliance status if required by regional regulations. Confirm that the 351 Ohm impedance matches the driver circuit requirements for optimal power transfer and frequency response.

Speakers Selection Notes

Select this component when space is limited but high audio fidelity is required. The 351 Ohm impedance suits specific amplifier outputs. Consider the side port orientation for acoustic chamber design. Evaluate the 93 dBA sensitivity against the desired volume levels. The balanced armature type offers low distortion compared to dynamic equivalents in small packages.

Speakers Part Context

This part belongs to the Knowles FK series of balanced armature receivers. These components are engineered for premium audio applications where size and sound quality are critical. The series typically includes various impedances and sensitivities to match different transducer designs. This specific model targets the hearing aid and professional monitor markets.

Speakers Replacement Considerations

Direct substitutes must match the 351 Ohm impedance and 5.00 x 2.73 mm footprint. Verify acoustic center alignment and side port directionality. Alternative models may require acoustic chamber redesign due to differing sensitivity or frequency response curves.