PCB Piezotronics
PCB Piezotronics 377 Measurement Microphone Series
Model 377A06:1/2 in Free-Field, Prepolarized, 12.6 mV/Pa Microphone
Available models include 377A06, 377A12, 377A14, 377A15, 377A21, 377B02, 377B11, 377C01, 377C10, 377C13, 377C20, 377C41.
Model 377A06:1/2 in Free-Field, Prepolarized, 12.6 mV/Pa Microphone
This series groups the official PCB Piezotronics variants listed below. Model differences such as sensitivity, range, connector, temperature rating, hazardous-area option, or microphone response are shown in the table.
Key Features
Model 377A06:1/2 in Free-Field, Prepolarized, 12.6 mV/Pa Microphone
- Nominal Microphone Diameter: 1/2"
- Frequency Response Characteristic: Free-Field
- Frequency Range: (±3dB)3.15 to 40000 Hz
- Inherent Noise: 20 dB(A)
Model & Varian
| Model | Official Variant Description | Nominal Microphone Diameter | Resonant Frequency (90° Phase Shift) | Temperature Range (Operating) | Static Pressure Coefficient | Frequency Range (±2 dB) | Lower Limiting Frequency (-3 dB) | Inherent Noise | Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) |
|---|---|---|---|---|---|---|---|---|---|
| 377A06 | 377A06 1/2" Prepolarized Free-Field Mic | 1/2" | 29000 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.007 dB/kPa / [1] [2] | 3.15 to 31500 Hz | 1 to 2.4 Hz | 20 dB(A) / [1] | ±0.002 dB/%RH / [1] [2] |
| 377A12 | 377A12 1/4" Prepolarized High Db Press Mic | 1/4" | 48900 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.001 dB/kPa / [1] [2] | 4 to 20000 Hz | 0.5 to 3.0 Hz | <60 dB(A) re 20 µPa | ±0.001 dB/%RH / [2] |
| 377A14 | 377A14 1/4" Pressure 0V Front Vent Microphone | 1/4" | 65000 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.003 dB/kPa / [1] [2] | 4 to 70000 Hz | 0.25 to 3.0 Hz / 0.25 to 3 Hz | <35 dB(A) re 20 µPa | ±0.0012 dB/%RH / [2] |
| 377A15 | 377A15 1" Prepolarized Pressure Microphone | 1" | 8600 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.012 dB/kPa / [1] [2] | — | — | 10 dB(A) re 20 µPa / [1] | +/-0.001 dB/%RH / [2] |
| 377A21 | 377A21 1/2" 0V Random Incidence Mic. Hi Fr | 1/2" | 21800 kHz / [1] | -40 to +248 °F / -40 to +120 °C | -.004 dB/kPa / [1] [2] | 4 to 25000 Hz | 1 to 2.4 Hz | 20 dB(A) re 20 µPa / [1] | ±.002 dB/%RH / [1] [2] |
| 377B02 | 377B02 1/2" Prepolarized Free-Field Mic | 1/2" | 10400 Hz / [1] | -40 to +302 °F / -40 to +150 °C | -0.013 dB/kPa / [1] [2] | 3.15 to 20000 Hz | 1.0 to 2.4 Hz | 15 dB(A) re 20 µPa / [1] | ±0.001 dB/%RH / [2] |
| 377B11 | 377B11 1/2 In. Prepolarized Pressure Microphone | 1/2" | 12000 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.01 dB/kPa / [1] [2] | 3.15 to 10000 Hz | 1.0 to 2.4 Hz | 14 dB(A) re 20 µPa / [1] | ±0.001 dB/%RH / [2] |
| 377C01 | 377C01 1/4" Free Field Prepolarized Microphone | 1/4" | 62 kHz / [1] | -40 to +248 °F / -40 to +120 °C | -0.009 dB/kPa / [1] [2] | 4 to 80000 Hz | 0.25 to 3.0 Hz | <35 dB(A) re 20 µPa | ±0.001 dB/%RH / [2] |
| 377C10 | 377C10 1/4" Pressure Prepolarized Microphone | 1/4" | 65000 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.003 dB/kPa / [1] [2] | 4 to 70000 Hz | 0.25 to 3.0 Hz | <35 dB(A) re 20 µPa | ±0.0012 dB/%RH / [2] |
| 377C13 | 377C13 1/2" Pressure Prepolarized Microphone | 1/2" | 19000 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.006 dB/kPa / [1] [2] | 3.15 to 20000 Hz | 1.0 to 2.4 Hz | 18 dB(A) re 20 µPa / [1] | ±0.001 dB/%RH / [2] |
| 377C20 | 377C20 1/2" Random Incidence Prepolarized Mic | 1/2" | 12000 Hz / [1] | -40 to +248 °F / -40 to +120 °C | -0.01 dB/kPa / [1] [2] | 3.15 to 16000 Hz | 1.0 to 2.4 Hz | 14 dB(A) re 20 µPa / [1] | ±0.001 dB/%RH / [2] |
| 377C41 | 377C41 1/2" Free-Field, 200V Microphone | 1/2" | 14000 Hz / [1] | -40 to +302 °F / -40 to +150 °C | -0.01 dB/kPa / [1] | 3.15 to 20000 Hz | 1.0 to 2.4 Hz | — | — |
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Spesifikasi
| Nominal Microphone Diameter | 1/2" |
|---|---|
| Frequency Response Characteristic (at 0° incidence) | Free-Field |
| Open Circuit Sensitivity (±2 dB)(at 250 Hz) ) | -38 dB re 1 V/Pa / [2] |
| Open Circuit Sensitivity (at 250 Hz) | 12.6 mV/Pa / [2] |
| Frequency Range (±3 dB) | 3.15 to 40000 Hz |
| Frequency Range (±2 dB) | 3.15 to 31500 Hz |
| Frequency Range (±1 dB) | 5 to 16000 Hz |
| Lower Limiting Frequency (-3 dB) | 1 to 2.4 Hz |
| Resonant Frequency (90° Phase Shift) | 29000 Hz / [1] |
| Inherent Noise | 20 dB(A) / [1] |
| Dynamic Range(3% Distortion Limit) | 162 dB re 20 µPa / [1] [2] |
| 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] [2] |
| Static Pressure Coefficient | -0.007 dB/kPa / [1] [2] |
| Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) | ±0.002 dB/%RH / [1] [2] |
| Influence of Axial Vibration (0.1g (1 m/s²)) | 66 dB re 20 µPa / [1] |
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