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Product Detailed Parameters
- Description：SPEAKER 497OHM TOP PORT 95DB
- Series：WBHC
- Mfr：Knowles
- Package：Bulk
- Type：Receiver, Balanced Armature
- Technology：Magnetic
- Impedance：497 Ohms
- Power - Max：-
- Shape：Rectangular
- Termination：Solder Pads
- Size / Dimension：0.203" L x 0.138" W (5.16mm x 3.51mm)
- Height - Seated (Max)：0.120" (3.05mm)
- Frequency - Self Resonant：-
- Efficiency - dBA：95
- Efficiency - Testing：-
- Efficiency - Type：Sound Pressure Level (SPL)
- Port Location：Top
- Material - Cone：-
- Material - Magnet：-
- Ingress Protection：-
- Ratings：-
- Frequency Range：100 Hz ~ 5.85 kHz
- Power - Rated：-
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Overview
The Knowles WBHC-23913-000 is a wideband balanced armature speaker designed for compact listening applications. It features a rectangular shape with top porting and magnetic technology. The component operates within a frequency range of 100 Hz to 5.85 kHz and has an impedance of 497 Ohms. Its physical dimensions are 5.15mm x 2.96mm x 2.58mm, enabling efficient high output in small spaces.
Feature Summary
- Compact rectangular design optimized for space-constrained environments
- Wideband frequency response suitable for voice reproduction
- Balanced armature technology for efficient power output
Applications
- Embedded systems requiring compact audio solutions
- Industrial automation equipment
- Consumer electronics with limited internal volume
Procurement Notes
Verify the specific part number WBHC-23913-000 against official Knowles documentation to confirm current availability status. Note that some sources indicate this component may be discontinued or obsolete. Ensure compatibility with system impedance requirements before procurement. Cross-reference datasheets for precise mechanical tolerances and acoustic specifications.
Selection Notes
Select this component when a wideband balanced armature receiver is required in a minimal footprint. The 497 Ohm impedance must match the driving circuit capabilities. Consider the top port configuration for acoustic integration. Verify that the 100 Hz to 5.85 kHz range meets the application's audio fidelity needs.
Part Context
This component belongs to the Knowles WBHC series of wideband balanced armature speakers. These devices are engineered for high efficiency in small form factors. The series typically includes variants with different impedances and port configurations to suit diverse embedded audio requirements.
Replacement Considerations
Check for direct substitutes within the WBHC series, such as models with similar impedance and dimensions. Verify acoustic performance equivalence if replacing with other balanced armature speakers. Confirm mechanical fit and electrical characteristics before substitution.
