BK-26824-000

Overview

The Knowles BK-26824-000 is a subminiature balanced armature receiver designed for audio applications. It features a rectangular side-port configuration with dimensions of 7.87 mm x 5.59 mm x 4.04 mm. The component operates within a frequency range of 200 Hz to 5.6 kHz and has an impedance of 29 Ohms. It delivers a sound pressure level of 112 dBA, ensuring high efficiency in compact form factors suitable for portable electronics.

Feature Summary

• Utilizes balanced armature technology for precise acoustic reproduction
• Features a side-port design optimized for directional sound projection
• Constructed as a subminiature unit for space-constrained environments
• RoHS compliant manufacturing process

Applications

• In-ear monitor (IEM) earphones
• Portable hearing aids
• Compact consumer audio devices

Procurement Notes

Verify the specific impedance variant required, as sources indicate both 22 Ohm and 29 Ohm specifications for this part number. Confirm RoHS compliance status directly with the manufacturer or authorized distributor documentation prior to integration. Ensure mechanical fitment matches the 7.87 mm x 5.59 mm x 4.04 mm envelope. Cross-reference datasheets for exact sensitivity ratings at 1 kHz.

Selection Notes

Select this component when a high-efficiency, low-profile driver is needed for mid-to-high frequency reproduction. The 200 Hz to 5.6 kHz range makes it suitable for dedicated mid-range or treble drivers in multi-way architectures. Consider the 29 Ohm impedance for compatibility with standard audio amplifier outputs. Evaluate the side-port orientation against enclosure design constraints.

Part Context

This model belongs to Knowles' subminiature speaker family, engineered for high-performance audio in small form factors. It is distinct from their microphone and capacitor lines. The balanced armature architecture provides superior transient response compared to dynamic drivers of similar size, making it a standard choice for premium audio applications requiring clarity and detail.

Replacement Considerations

Direct substitutes are not explicitly confirmed in public data. Verify dimensional compatibility and electrical parameters (impedance, SPL) before considering alternative balanced armature receivers from other manufacturers.