Application Scenarios & Model Selection
| Application | Image | Model | Size | Sensitivity | SNR | Description |
|---|---|---|---|---|---|---|
| Control Station |  |
ECM-F9745AL36-186 | 9.7×4.5mm | -36±2dB | 65dB | Omnidirectional. 50-2KHz flat, 2K-5KHz boosted then roll-off. Long-distance pickup for control rooms. |
| Outdoor Patrol |  |
ECM-B6027AML37-23373 | 6×2.7mm | -37±2dB | 73dB | Omnidirectional. 50-5KHz flat, 5K-10KHz boosted then roll-off. Wind-noise resistant, ideal for harsh outdoor environments. |
| Emergency Unit |  |
ECM-B4015AL38RC-L10 | 4×1.5mm | -38±2dB | 65dB | Omnidirectional. 50-2KHz flat, 2K-5KHz gentle roll-off. EMI resistant, wire lead for easy installation. |
| Perimeter Device |  |
ECM-B6022AP40-23383 | 6×2.2mm | -40±3dB | 60dB | Omnidirectional. 50-20KHz flat. Pin-type for automated SMT assembly. |
Selection Principles
Outdoor Protection
Outdoor patrol and perimeter devices require wind-noise resistant models (6027 series). Control stations and indoor units can use standard 9745 series for better sensitivity.
EMI Resistance
Emergency units and devices near power lines or elevators need EMI shielding. Wire-lead models provide better isolation from electrical noise.
SNR by Deployment
Control stations and outdoor patrol units use ≥70dB high SNR models for clear communication in noisy environments. Perimeter devices can use 55-65dB models balancing cost and performance.
Connection Method
Solder pads for SMT assembly (perimeter devices). Wire leads for emergency units requiring flexible placement. Pins for automated production lines — match to your manufacturing process.
Performance Standards
Stable Voice Response
Optimized frequency response for natural, intelligible speech in security communication scenarios.
High SNR
Low noise floor, clean audio even in windy outdoor environments.
Sensitivity Consistency
Tight tolerance control ensures uniform performance across batches, reducing calibration efforts.
Environmental Tested
Thermal shock: -40°C to +80°C | Humidity: 93% RH | Vibration & drop tested for security deployment.
Reliability & Testing
Environmental Tests
- High/Low temperature storage: +80°C / -40°C for 100 hours
- Thermal shock: +80°C ↔ -40°C, 10 cycles
- Humidity: +55°C / 93% RH for 100 hours
- Vibration: 10-55Hz, 1.52mm amplitude, 3 directions
- Drop test: 1.0m to marble floor, 5 times
Electrical & Acoustic Tests
- Sensitivity, frequency response & SNR
- Voltage & current characteristics
- Solder heat resistance (reflow compatible)
- Mechanical strength & distortion
RoHS Compliant
Lead-free, global market access
24/7 Continuous Operation
Low failure rate, extended lifespan
Mass Production Ready
Strict tolerance control, automated SMT ready
Core Advantages
Wind-Noise Resistant
Optimized for outdoor security applications with strong wind-noise suppression, ensuring clear calls in harsh weather.
EMI Protected
Designed to minimize electromagnetic interference in security equipment — stable operation near power lines, motors, and elevators.
Environmental Tested
Thermal shock -40°C to +80°C, humidity 93% RH — proven reliability for outdoor and unattended installations.
Flexible Connections
Wire, pin, and solder pad options — compatible with SMT, hand-soldering, and wire-lead assembly processes.
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Reliable microphone components for security intercom systems.