Subminiature Electret Microphones MR-23151-000
MR-23151-000
Compact electret condenser microphones designed for high-performance audio capture in space-constrained and rugged environments.
Brand: Knowles
Manufacturers:
Product Overview
Features
- Available in diameters as small as 2.59 mm with cylindrical or rectangular housings
- Integral FET amplifiers and high electroacoustic sensitivity
- Noise-canceling, omni-directional, and unidirectional variants
- RFI/EMI suppression and electrical high-pass filter options
- Rugged construction with high resistance to vibration and mechanical shock
- Customizable port locations, tube lengths, and frequency responses
- Models with improved settling time and power feedthrough attenuation
Benefits
- Enables clear voice pickup in noisy or mobile environments
- Supports compact product designs without sacrificing performance
- Reduces electromagnetic interference in sensitive applications
- Enhances audio quality with low noise and optimized frequency tuning
- Increases durability in industrial, medical, and wearable use cases
- Simplifies integration with flexible mechanical and electrical configurations
- Improves startup performance and signal stability in directional applications
Target Applications
- Headsets and communication devices
- Medical diagnostic and monitoring equipment
- Industrial wearables and safety systems
- Smart glasses and augmented reality (AR) devices
- Voice-controlled consumer electronics
- Surveillance and security systems
Specifications
| Type | Electret Condenser |
|---|---|
| Part Number | MR-23151-000 |
| Product | Microphone |
| Product Type | Electret Condenser |
| Range | MR |
| Frequency Range | 280 Hz ~ 5 kHz |
| Impedance | 300 Ohms |
| Sensitivity | -87.5dB ±3dB @ 74dB SPL |
| Voltage | 1 V |
| Voltage Range | - |
| Port Location | Side |
| Output Type | Analog |
| Direction | Omnidirectional |
| Shape | Circular |
| Height | 0.366" (9.30mm) |
| Dimensions | 0.871" Dia (22.12mm) |
Product Documentation
Datasheets
Design Files
3D Models
Additional Resources
Distributor Inventory
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| Part Number | Part Description | Quantity | Distributor |
|---|---|---|---|
| MR-23151-000 | MICROPHONES WATERPROOF SPEAKER OMNI | 336 |
Mouser Electronics Inc.
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|
| MR-23151-000 | KNOWLES | 397 |
DigiKey
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