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Product Detailed Parameters
- Description：SPEAKER
- Series：BS
- Mfr：Knowles
- Package：Tray
- Type：-
- Technology：-
- Impedance：-
- Power - Max：-
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- Frequency - Self Resonant：-
- Efficiency - dBA：-
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- Port Location：-
- Material - Cone：-
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Overview
The Knowles BS-21740-G is a miniature speaker component designed for audio output applications. It belongs to the BS series of products manufactured by Knowles Corporation. The device is identified as a lead-free and RoHS compliant unit, indicating adherence to specific environmental standards for electronic components. This model represents a compact acoustic transducer intended for integration into portable or space-constrained electronic devices requiring reliable sound reproduction.
Feature Summary
- Miniature form factor suitable for compact device integration
- Lead-free construction with RoHS compliance
- Designed for general audio output functions
Applications
- Portable consumer electronics
- Compact communication devices
- Miniature audio systems
Procurement Notes
Verify current lifecycle status before procurement planning. Official sources indicate this product is no longer manufactured. Confirm availability through authorized distributors or secondary markets if sourcing is required. Ensure compatibility with existing designs due to potential obsolescence. Check for valid replacement part numbers from the manufacturer's documentation to maintain supply chain continuity.
Selection Notes
Select this component only if legacy support is necessary or if the design already incorporates its specific mechanical and electrical interface. Evaluate alternative active models from the same manufacturer family for new designs. Consider the discontinued status when planning long-term production runs. Verify that the acoustic performance meets the application requirements without relying on generic specifications.
Part Context
This component is part of the BS series produced by Knowles Corporation, a manufacturer specializing in precision acoustic and piezoelectric components. The BS series typically includes various speaker and transducer models designed for different size and performance constraints within the audio electronics market.
Replacement Considerations
Official documentation lists BS-21740-000, BS-21840-G, and BS-28042-G as related models affected by product changes. These may serve as functional substitutes depending on specific design parameters and mechanical fit.
