PCB-HT378A21
377A21 Microphone and HT426E01 Preamplifier with TEDS
- Nominal Microphone Diameter: 1/2"
- Frequency Response Characteristic: Random Incidence
- Frequency Range: (±2dB)4 to 25000 Hz
- Dynamic Range: 153 dB re 20 µPa
Specification Notes
[1] Typical.
[2] TEDS Capable Digital Communication, compliant with IEEE 1451.4
[3] re 250 Hz
[1] Typical.
[3] re 250 Hz
[4] Prepolarized
[1] Typical.
[5] Venting through Preamp.
[6] See PCB Declaration of Conformance PS065 for details.
| English: | SI: | ||
|---|---|---|---|
| Performance | |||
| Nominal Microphone Diameter | 1/2" | 1/2" | |
| Frequency Response Characteristic | Random Incidence | Random Incidence | |
| Sensitivity (±2 dB) | -38 dB re 1 V/Pa | -38 dB re 1 V/Pa | [3] |
| Sensitivity | 12.6 mV/Pa | 12.6 mV/Pa | [3] |
| Frequency Range (±2 dB) | 4 to 25000 Hz | 4 to 25000 Hz | |
| Lower Limiting Frequency (3) | 1.0 to 2.4 Hz | 1.0 to 2.4 Hz | |
| Inherent Noise | 23 dB(A) re 20 µPa | 23 dB(A) re 20 µPa | [1] |
| Dynamic Range (3% Distortion Limit) | 153 dB re 20 µPa | 153 dB re 20 µPa | [1] |
| TEDS Compliant | Yes | Yes | [2] |
| Environmental | |||
| Temperature Range (Operating) | -40 to +248 °F | -40 to +120 °C | |
| Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to +70°C)) | 0.003 dB/°F | 0.006 dB/°C | [1] [3] |
| Static Pressure Coefficient | -0.007 dB/kPa | -0.007 dB/kPa | [1] [3] |
| Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) | 0.002 dB/%RH | 0.002 dB/%RH | [1] [3] |
| Influence of Axial Vibration (0.1g (1 m/s²)) | 67 dB re 20 µPa | 67 dB re 20 µPa | [1] |
| Electrical | |||
| Polarization Voltage | 0 V | 0 V | [4] |
| Excitation Voltage | 20 to 30 VDC | 20 to 30 VDC | |
| Constant Current Excitation | 2 to 20 mA | 2 to 20 mA | |
| Output Bias Voltage | 10 to 14 VDC | 10 to 14 VDC | |
| Maximum Output Voltage | ±7 Vpk | ±7 Vpk | |
| Output Impedance | <50 Ohm | <50 Ohm | |
| Physical | |||
| Housing Material | Stainless Alloy | Stainless Alloy | |
| Venting | Rear | Rear | [5] |
| Electrical Connector | BNC Jack | BNC Jack | |
| Mounting Thread (Grid) | 0.5 - 60 UNS | 0.5 - 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) | 3.74 in | 95 mm | |
| Size - Height (without grid) | 3.72 in | 94.5 mm | |
| Weight | 1.69 oz | 48 gm | [1] |
* All specifications are at room temperature unless otherwise specified.
Accessories
| Supplied | ||
| ACS-63 | Calibration for microphone/preamplifier with TEDS programming | 1 |
PCB-HT378A21
