BK-21604-000

Overview

The Knowles BK-21604-000 is a balanced armature receiver designed for audio applications. It features a frequency range of 200 Hz to 3.8 kHz and an impedance of 6 kOhms. The device has a sound pressure level of 114 dBA and utilizes solder pad termination. Its physical dimensions are 7.87 mm in length.

Feature Summary

• Balanced armature driver technology
• Rectangular top profile design
• Solder pad termination style

Applications

• Hearing aids
• Medical devices
• Communication equipment

Procurement Notes

Verify the specific datasheet version with the manufacturer or authorized distributor before procurement. Confirm that the 6 kOhm impedance and rectangular package dimensions match the target circuit requirements. Ensure the solder pad termination style is compatible with the intended assembly process. Cross-reference the part number BK-21604-000 to avoid confusion with similar Knowles models.

Selection Notes

Select this component when high acoustic efficiency is required within a compact form factor. The 6 kOhm impedance suits high-impedance amplifier stages. Consider the 200 Hz to 3.8 kHz frequency response for voice-centric applications. Evaluate the rectangular shape for space-constrained PCB layouts where standard circular drivers do not fit.

Part Context

This part belongs to Knowles' portfolio of precision audio components, specifically balanced armature receivers. These components are engineered for high fidelity and reliability in small electronic devices. The BK series typically targets professional and medical markets requiring consistent performance.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Knowles engineering for direct replacements if this specific model is discontinued or unavailable.