Colsan can supply digital and analogue platforms for active hearing protection devices. We not only supply components for building custom and generic active hearing protectors, but can assist with or carry out the design to your specifications.
Here is a typical scenario:
Below is a selection of receivers and microphones suitable for covert communication devices:
Miniature speakers (receivers) suitable for hearing protection applications:
| Part Code | Sensitiv. | RDC | Imped. | Nom. | Dimensions (mm) | Data | |||
|---|---|---|---|---|---|---|---|---|---|
| 1000 Hz | drive level | L | W | H | Notes | Sheet | |||
| 26A005/8 | 106.5 | 24 | 50 | 0.10 Vrms | 5.3 | 3.1 | 2.6 | Excellent mechanical shock protection | |
| 41A007 | 95 | 55 | 76 | 0.15 Vrms | 5.00 | 2.70 | 0.98 | Smallest single receiver on the market | |
| 44A004 | 98 | 28 | 38 | 0.105 Vrms | 5.00 | 2.70 | 1.96 | Smallest dual receiver on the market | |
| 2315 | 104 | 1493 | 5900 | 0.35 mA MCM | 6.30 | 4.29 | 2.96 | Very robust | |
Miniature microphones suitable for hearing protection applications:
| Part Code | Type | Sensitiv. | Noise level typ. | Battery | Output imped. | Dimensions (mm) | Data | |||
|---|---|---|---|---|---|---|---|---|---|---|
| dB SPL | drain typ. | typ. | L | W | H | Notes | Sheet | |||
| 6117 | Noise Cancelling | -38.5 | 34.0 | 21 | 4.5 | 3.55 | 3.55 | 1.32 | ||
| 9721GX | Ski-Slope | -38.5 | 30.5 | 35 | 3.0 | 6.3 | 4.3 | 3 | 6dB Ski slope | |
| 8002 | Omni | -33.5 | 25.0 | 17 | 4.5 | 2.56 | Ø 2.56 | - | ||
| 6270 | Omni | -34.0 | 25.0 | 17 | 4.5 | 3.55 | 3.55 | 1.32 | ||
| 6106 | Directional | -37 | 34.0 | 21 | 4.5 | 3.55 | 3.55 | 1.32 | ||