BK-21606-000

Overview

The Knowles BK-21606-000 is a balanced armature receiver designed for audio applications. It features a rectangular package with dimensions of 7.87mm in length and 5.59mm in width, and a height of 3.1mm. The component operates within a frequency range of 200 Hz to 3.8 kHz and has an impedance of 1.5 kOhms. It utilizes solder pads for surface mount installation and includes side ports for acoustic coupling.

Feature Summary

• Balanced armature transducer technology for high-fidelity sound reproduction
• Rectangular form factor with side port configuration for compact integration
• Solder pad termination suitable for automated surface mount assembly

Applications

• Hearing aids and assistive listening devices
• Medical diagnostic equipment requiring precise audio feedback
• Industrial communication headsets
• Specialized consumer audio receivers

Procurement Notes

Verify the specific acoustic sensitivity and impedance tolerance against the official Knowles datasheet prior to procurement. Ensure that the side-port orientation matches the enclosure design requirements. Confirm RoHS compliance status through the manufacturer's current documentation to meet regulatory standards for the target market.

Selection Notes

Select this component when a high-impedance balanced armature receiver is required for mid-range audio frequencies. The 1.5 kOhm impedance suits circuits designed for low-current drive applications. The rectangular footprint allows for dense PCB layouts where space is constrained. Evaluate the side-port placement relative to the acoustic chamber design to ensure optimal sound transmission.

Part Context

Knowles Corporation specializes in high-performance micro-acoustic components, including balanced armature speakers and receivers. The BK-21606-000 belongs to their portfolio of precision audio transducers used in demanding environments. This product line supports industries such as healthcare, defense, and industrial automation, focusing on reliability and acoustic clarity.

Replacement Considerations

Consult the official Knowles replacement guide for direct equivalents. Verify mechanical dimensions and pinout compatibility before substituting. Cross-reference impedance and frequency response curves to maintain system performance integrity.