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Model: 377A07

$740.00 USD
(Pricing valid in US only)

Datasheet

1/2" free field prepolarized condensor microphone, low frequency

  • Nominal Microphone Diameter: 1/2"
  • Frequency Response Characteristic: Free-Field
  • Frequency Range: (±1dB) 0.1 to 10000 Hz
  • Dynamic Range: 147 dB re 20 µPa

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 English:SI: 
Performance
Nominal Microphone Diameter1/2"1/2" 
Frequency Response Characteristic (at 0° incidence)Free-FieldFree-Field 
Open Circuit Sensitivity50 mV/Pa50 mV/Pa[2] 
Open Circuit Sensitivity (±1.5 dB)-26 dB re 1 V/Pa-26 dB re 1 V/Pa[2] 
Frequency Range (±1 dB)0.1 to 10000 Hz0.1 to 10000 Hz 
Frequency Range (±2 dB)0.07 to 20000 Hz0.07 to 20000 Hz 
Lower Limiting Frequency (-3 dB)0.01 to 0.05 Hz0.01 to 0.05 Hz 
Resonant Frequency (90° Phase Shift)10400 Hz10400 Hz[1] 
Inherent Noise15 dB(A) re 20 µPa15 dB(A) re 20 µPa[1] 
Dynamic Range (3% Distortion Limit)147 dB re 20 µPa147 dB re 20 µPa[1] 
Standards Designation (IEC 61094-4)WS2FWS2F 
Environmental
Temperature Range (Operating)-40 to +248 °F-40 to +120 °C 
Temperature Coefficient of Sensitivity (+14 to +122°F (-10 to +50°C))0.005 dB/°F0.009 dB/°C[2][1] 
Static Pressure Coefficient-0.01 dB/kPa-0.01 dB/kPa[2][1] 
Humidity Coefficient of Sensitivity (0 to 100%, non-condensing)±0.001 dB/%RH±0.001 dB/%RH[2] 
Influence of Axial Vibration (0.1g (1 m/s²))63 dB re 20 µPa63 dB re 20 µPa[1] 
Electrical
Capacitance (Polarized)12 pF12 pF[1] 
Polarization Voltage0 V0 V[3] 
Physical
Housing MaterialStainless AlloyStainless Alloy 
VentingRearRear 
Mounting Thread (Preamplifier)0.4606 - 60 UNS11.7 mm - 60 UNS 
Mounting Thread (Grid)0.5 - 60 UNS12.7 mm - 60 UNS 
Size - Diameter (with grid)0.52 in13.2 mm 
Size - Diameter (without grid)0.5 in12.7 mm 
Size - Height (with grid)0.64 in16.2 mm 
Size - Height (without grid)0.6 in15.3 mm 
Weight0.28 oz7.8 gm[1] 

All specifications are at room temperature unless otherwise specified.



Product Notes
[1] Typical.
[2] re 250 Hz
[3] Prepolarized
Accessories:
Supplied
ACS-20Calibration of Precision Condensor Microphones(1)
Optional Versions:
No optional versions
Product Documents
Additional Downloads
Microphone - Safe Handling and Maintenance

Prepolarized vs. externally polarized microphones