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Product Detailed Parameters
- Description：SPEAKER 2.2 KOHM 123DB RECT
- Series：BK
- Mfr：Knowles
- Package：Tray
- Type：Receiver, Balanced Armature
- Technology：Magnetic
- Impedance：2.2 kOhms
- Power - Max：-
- Shape：Rectangular
- Termination：Solder Pads
- Size / Dimension：-
- Height - Seated (Max)：-
- Frequency - Self Resonant：-
- Efficiency - dBA：123
- Efficiency - Testing：-
- Efficiency - Type：-
- Port Location：-
- Material - Cone：-
- Material - Magnet：-
- Ingress Protection：-
- Ratings：-
- Frequency Range：200 Hz ~ 3.5 kHz
- Power - Rated：-
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Overview
The BK-21612-B48 is a balanced armature speaker manufactured by Knowles. It belongs to the BK series of audio devices and receivers. The component is designed for surface mount board mounting applications. It utilizes ceramic dielectric materials within its construction. The device operates within a temperature range of -55 °C to +125 °C. Factory packaging quantity is listed as 25 units.
Feature Summary
- Balanced armature transducer design
- Surface mount board integration
- Wide operating temperature capability
Applications
- Audio receiver circuits
- Speaker systems
- Transducer applications
Procurement Notes
Verify current availability status directly with the manufacturer or authorized distributors, as supply conditions may vary. Confirm RoHS compliance details through official documentation before procurement. Ensure the specific package type matches the intended board layout requirements. Check for any regional sales restrictions that might affect sourcing channels. Validate the factory packaging quantity against logistical needs.
Selection Notes
Consider the thermal performance limits when selecting this component for high-temperature environments. Evaluate the mechanical stability required for surface mount installation processes. Assess the acoustic requirements against the balanced armature characteristics. Verify compatibility with the target audio signal frequencies. Review the physical dimensions to ensure adequate space on the printed circuit board.
Part Context
This component is part of Knowles' broader portfolio of audio devices and transducers. The manufacturer specializes in high-performance capacitors and audio solutions for demanding applications. The BK series represents a specific line of balanced armature speakers designed for compact electronic integration.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential cross-references or updated model equivalents.
