PCB-377A21
1/2" prepoplarized random incidence condenser microphone, low sensitivity, high frequency
- Nominal Microphone Diameter: 1/2"
- Frequency Response Characteristic: Random Incidence
- Frequency Range: (±2dB)4 to 25000 Hz
- Dynamic Range: 162 dB re 20 µPa
Specification Notes
[1] Typical.
[2] re 250 Hz
[1] Typical.
[2] re 250 Hz
[1] Typical.
[3] Prepolarized
[1] Typical.
[4] See PCB Declaration of Conformance PS167 for details.
| English: | SI: | ||
|---|---|---|---|
| Performance | |||
| Nominal Microphone Diameter | 1/2" | 1/2" | |
| Frequency Response Characteristic (at 0° incidence) | Random Incidence | Random Incidence | |
| Open Circuit Sensitivity (±2 dB)(at 250 Hz) ) | -38 dB re 1 V/Pa | -38 dB re 1 V/Pa | [2] |
| Open Circuit Sensitivity (at 250 Hz) | 12.6 mV/Pa | 12.6 mV/Pa | [2] |
| Frequency Range (±2 dB) | 4 to 25000 Hz | 4 to 25000 Hz | |
| Lower Limiting Frequency (-3 dB) | 1 to 2.4 Hz | 1 to 2.4 Hz | |
| Resonant Frequency (90° Phase Shift) | 21800 kHz | 21800 kHz | [1] |
| Inherent Noise | 20 dB(A) re 20 µPa | 20 dB(A) re 20 µPa | [1] |
| Dynamic Range (3% Distortion Limit) | 162 dB re 20 µPa | 162 dB re 20 µPa | [1] [2] |
| Environmental | |||
| Temperature Range (Operating) | -40 to +248 °F | -40 to +120 °C | |
| Temperature Coefficient of Sensitivity (+14 to +122°F (-10 to +50°C)) | .003 dB/°F | .006 dB/°C | [1] [2] |
| Static Pressure Coefficient | -.004 dB/kPa | -.004 dB/kPa | [1] [2] |
| Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) | ±.002 dB/%RH | ±.002 dB/%RH | [1] [2] |
| Influence of Axial Vibration (0.1g (1 m/s²)) | 67 dB re 20 µPa | 67 dB re 20 µPa | [1] |
| Electrical | |||
| Capacitance (Polarized) | 14 pF | 14 pF | [1] |
| Polarization Voltage | 0 V | 0 V | [3] |
| Physical | |||
| Housing Material | Stainless Alloy | Stainless Alloy | |
| Venting | Rear | Rear | |
| Mounting Thread (Preamplifier) | 0.4606 - 60 UNS | 11.7 mm - 60 UNS | |
| Mounting Thread (Grid) | 0.5 - 60 UNS | 12.7 mm - 60 UNS | |
| Size - Diameter (with grid) | 0.52 in | 13.2 mm | |
| Size - Diameter (without grid) | 0.50 in | 12.7 mm | |
| Size - Height (with grid) | 0.50 in | 12.7 mm | |
| Size - Height (without grid) | 0.46 in | 11.8 mm | |
| Weight | 0.23 oz | 6.5 gm | [1] |
* All specifications are at room temperature unless otherwise specified.
Accessories
| Supplied | ||
| ACS-20 | Calibration of precision condenser microphones | 1 |
PCB-377A21
