PCB Piezotronics
PCB Piezotronics B With E Teds Series
Model 378B02:1/2" prepolarized free-field condenser microphone, 50 mV/Pa (+/-1.5 dB), 3.75 Hz - 20 kHz (+/-2 dB) with 1/2" ICP® preamplifier
Available models include 378B02, 378B11.
Model 378B02:1/2" prepolarized free-field condenser microphone, 50 mV/Pa (+/-1.5 dB), 3.75 Hz – 20 kHz (+/-2 dB) with 1/2" ICP® preamplifier
This series groups the official PCB Piezotronics variants listed below. Differences such as frequency, configuration, connector, range, or regional option are shown in the table.
Key Features
Model 378B02:1/2" prepolarized free-field condenser microphone, 50 mV/Pa (+/-1.5 dB), 3.75 Hz - 20 kHz (+/-2 dB) with 1/2" ICP® preamplifier
- Nominal Microphone Diameter: 1/2"
- Frequency Response Characteristic: Free-Field
- Frequency Range: (±2dB)3.75 to 20000 Hz (3.75 to 20000 Hz)
- Inherent Noise: 15.5 dB(A) re 20 µPa
- Dynamic Range: 137 dB re 20 µPa
Model & Varian
| Model | Official Variant Description | Nominal Microphone Diameter | Sensitivity (±1.5 dB) | Sensitivity | Frequency Range (±2 dB) | Frequency Range (±1 dB) | Inherent Noise | Dynamic Range (3% Distortion Limit) | TEDS Compliant |
|---|---|---|---|---|---|---|---|---|---|
| 378B02 | 378B02 377B02 With 426E01 (Teds) | 1/2" | -26 dB re 1 V/Pa / [3] | 50 mV/Pa / [3] | 3.75 to 20000 Hz | 7 to 10000 Hz | 15.5 dB(A) re 20 µPa / [1] | 137 dB re 20 µPa / [1] | Yes / [2] |
| 378B11 | 378B11 377B11 With 426E01 (Teds) | 1/2" | -26 dB re 1 V/Pa / [3] | 50 mV/Pa / [3] | 3.75 to 10000 Hz | 7.0 to 7500 Hz | 16 dB(A) re 20 µPa / [1] | 137 dB re 20 µPa / [1] | Yes / [2] |
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Spesifikasi
| Nominal Microphone Diameter | 1/2" |
|---|---|
| Frequency Response Characteristic (at 0° incidence) | Free-Field |
| Sensitivity (±1.5 dB) | -26 dB re 1 V/Pa / [3] |
| Sensitivity | 50 mV/Pa / [3] |
| Frequency Range (±2 dB) | 3.75 to 20000 Hz |
| Frequency Range (±1 dB) | 7 to 10000 Hz |
| Lower Limiting Frequency (3) | 1.0 to 3.0 Hz |
| Inherent Noise | 15.5 dB(A) re 20 µPa / [1] |
| Dynamic Range (3% Distortion Limit) | 137 dB re 20 µPa / [1] |
| TEDS Compliant | Yes / [2] |
| Temperature Range (Operating) | -40 to +176 °F / -40 to +80 °C |
| Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to +70°C)) | 0.005 dB/°F / 0.009 dB/°C / [1] [3] |
| Static Pressure Coefficient | -0.013 dB/kPa / [1] [3] |
| Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) | ±0.001 dB/%RH / [3] |
| Influence of Axial Vibration (0.1g (1 m/s²)) | 63 dB re 20 µPa / [1] |
| Polarization Voltage | 0 V / [4] |
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