Model : 377A12 | Precision Condenser Microphone

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$ 875.00 USD
(Pricing valid in US only!)

1/4" pressure, prepolarized condenser microphone typical sensitivity= 0.25 mV/Pa (+/-3 dB), 4 Hz to 20 kHz (+/-2 dB).

High amplitude prepolarized microphone

  • Nominal Microphone Diameter: 1/4"
  • Frequency Response Characteristic: Pressure
  • Frequency Range: (±2dB)4 to 20000 Hz
  • Inherent Noise: <60 dB(A) re 20 µPa
  • Dynamic Range: (3% Distortion Limit)182 dB re 20 µPa

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English: SI:
Performance
Nominal Microphone Diameter 1/4" 1/4"
Frequency Response Characteristic Pressure Pressure
Open Circuit Sensitivity (±3 dB) -72 dB re 1 V/Pa -72 dB re 1 V/Pa [2]
Open Circuit Sensitivity 0.25 mV/Pa 0.25 mV/Pa [2]
Frequency Range (±2 dB) 4 to 20000 Hz 4 to 20000 Hz
Lower Limiting Frequency (-3 dB) 0.5 to 3.0 Hz 0.5 to 3.0 Hz
Resonant Frequency (90° Phase Shift) 48900 Hz 48900 Hz [1]
Inherent Noise <60 dB(A) re 20 µPa <60 dB(A) re 20 µPa
Dynamic Range(3% Distortion Limit) 182 dB re 20 µPa 182 dB re 20 µPa [1]
Maximum Sound Pressure Level(Peak) >194 dB re 20 µPa >194 dB re 20 µPa
Environmental
Temperature Range (Operating) -40 to +248 °F -40 to +120 °C
Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to +70°C)) 0.004 dB/°F 0.007 dB/°C [1] [2]
Static Pressure Coefficient -0.001 dB/kPa -0.001 dB/kPa [1] [2]
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)) 72 dB re 20 µPa 72 dB re 20 µPa [1]
Electrical
Capacitance (Polarized) 4.6 pF 4.6 pF [1]
Polarization Voltage 0 V 0 V [3]
Physical
Housing Material Stainless Alloy Stainless Alloy
Venting Rear Rear
Mounting Thread 0.2244 - 60 UNS 5.7 mm - 60 UNS
Mounting Thread 0.25 - 60 UNS 6.35 mm - 60 UNS
Size - Diameter (with grid) 0.28 in 7.0 mm
Size - Diameter (without grid) 0.25 in 6.4 mm
Size - Height (with grid) 0.41 in 10.4 mm
Size - Height (without grid) 0.36 in 9.1 mm
Weight 0.06 oz 1.7 gm [1]
* All specifications are at room temperature unless otherwise specified
.


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.


Accessories


Supplied
ACS-20 Calibration of precision condenser microphones 1


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