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Product Detailed Parameters
- Description：SPEAKER RECTANGULAR
- Series：BK
- Mfr：Knowles
- Package：Bulk
- Type：Receiver, Balanced Armature
- Technology：Magnetic
- Impedance：-
- Power - Max：-
- Shape：Rectangular
- Termination：Solder Pads
- Size / Dimension：-
- Height - Seated (Max)：-
- Frequency - Self Resonant：-
- Efficiency - dBA：-
- Efficiency - Testing：-
- Efficiency - Type：-
- Port Location：-
- Material - Cone：-
- Material - Magnet：-
- Ingress Protection：-
- Ratings：-
- Frequency Range：-
- Power - Rated：-
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Overview
The BK-28384-000 is a rectangular balanced armature speaker manufactured by Knowles. It functions as an electroacoustic receiver designed for audio signal reproduction in compact electronic devices. The component utilizes a balanced armature transduction mechanism to convert electrical signals into sound waves. It features a rectangular form factor suitable for space-constrained applications. The device is constructed with solder pads for surface mount integration onto printed circuit boards. It complies with RoHS standards, indicating restricted hazardous substances compliance.
Feature Summary
- Balanced armature transduction technology for efficient audio reception
- Rectangular physical housing design optimized for compact assemblies
- Surface mount construction utilizing solder pad termination
- RoHS compliant manufacturing process
Applications
- Mobile communication handsets
- Wireless earpieces and headsets
- Portable medical diagnostic equipment
- Smart home voice control interfaces
Procurement Notes
Verify the specific datasheet revision and mechanical dimensions against your PCB layout requirements before procurement. Confirm that the solder pad configuration matches your assembly process capabilities. Ensure the supplier provides original manufacturer documentation to validate authenticity and compliance status. Check for any specific handling instructions regarding electrostatic discharge sensitivity during storage and installation.
Selection Notes
Select this component when a compact rectangular form factor is required for audio reception in portable electronics. Consider the balanced armature architecture for applications demanding high efficiency in small enclosures. Evaluate the mechanical mounting constraints to ensure compatibility with the solder pad footprint. Assess the acoustic performance requirements against the typical characteristics of rectangular balanced armature receivers from this manufacturer series.
Part Context
This part belongs to the Knowles speaker portfolio, specifically within the balanced armature receiver category. These components are widely utilized in consumer electronics where size and weight are critical constraints. The rectangular shape distinguishes it from circular dynamic drivers or other balanced armature geometries. It represents a standard solution for voice and audio playback in modern mobile and wearable devices.
Replacement Considerations
Consult official Knowles documentation for direct cross-reference part numbers. Verify mechanical footprint compatibility and acoustic specifications before substituting with alternative manufacturers' components. Ensure equivalent electrical impedance and frequency response characteristics if replacing with non-identical parts.
