BK-21612-000

Overview

The Knowles BK-21612-000 is a balanced armature receiver speaker designed for high-fidelity audio applications. It features a rectangular form factor with side porting and operates within a frequency range of 200 Hz to 3.8 kHz. The component exhibits an impedance of 2.36 kOhms and delivers a sound pressure level of 123 dB. Manufactured by Knowles, the originator of balanced armature technology, this transducer is optimized for compact electronic devices requiring precise acoustic performance.

Feature Summary

• Balanced armature transducer technology for high fidelity
• Rectangular housing with side port configuration
• High sensitivity output capability

Applications

• Hearing aid receivers
• Voice coil motor actuators
• Compact audio communication devices

Procurement Notes

Verify the specific suffix code against official Knowles documentation to confirm exact acoustic and electrical tolerances. Ensure compatibility with existing driver circuits given the 2.36 kOhm impedance specification. Confirm RoHS compliance status through current manufacturer datasheets prior to integration into regulated environments.

Selection Notes

Select this component when high sensitivity and compact size are critical constraints. The 2.36 kOhm impedance requires appropriate driving circuitry design. Consider the 200 Hz to 3.8 kHz frequency response limits for voice-centric or narrowband audio applications rather than full-range music reproduction.

Part Context

Knowles Corporation pioneered balanced armature technology, establishing industry standards for miniaturized acoustic transducers. The BK series represents their specialized receiver products, widely utilized in medical and communication sectors where space efficiency and acoustic precision are paramount requirements.

Replacement Considerations

Consult official Knowles substitution guides for direct equivalents. Verify mechanical footprint and pinout compatibility before integrating alternative models from other manufacturers.