PCB-377C20
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PCB-377C20

  • Prepolarized 1/2"-Präzisionsmikrofonkapsel
    für Diffusfeldanwendungen,
  • Empfindlichkeit 50 mV/Pa,
  • Dynamikbereich >144 dB,
  • Frequenzbereich 3,15 … 16.000 Hz
basic data
Nominal diameter of microphone 1/2 "
application diffuse-field
Sensitivity in the open circuit 50 mV / PA [3]
sensitivity in the open circuit (±1. 5 dB) -26 dB in relation to 1 V / PA [3]
Frequency range (± 1 dB) 5 … 6,300 Hz
(±2 dB) frequency range 3.15 … 16,000 Hz
lower limiting frequency (-3 dB) 1.0 … 2.4 Hz
Resonance frequency 12,000 Hz [1]
noise < 15 dB(A) in relation to 20 µPa
dynamic range > 144 dB in relation to 20 µPa
microphone type in accordance with IEC 61094-4 WS2D [2]
conditions
Temperature range (operation) -40 … 248 ° F -40 … 120 ° C
Temperature coefficient of sensitivity 0,005 dB/°F 0.009 dB / ° C [3] [1]
Influenceby static pressure -0.01 dB/kPa [3] [1]
Humidity coefficient of sensitivity ±0, 001 dB/% RH [3]
influence by axial vibration 63 dB in relation to 20 µPa [1]
technical characteristics
capacity 11 pF [1]
Polarization voltage 0 V [4]
physical properties
housing material stainless steel alloy
pressure equalization Rear
Mounting thread (amp) 0,4606 60 UNS 11,7 mm - 60 UNS
mounting thread (cap) 0,5 - 60 UNS 12,7 mm - 60 UNS
Size - diameter (with cap) 0.52 in 13.2 mm
size - diameter (without protection cap) 0.5 in 12.7 mm
Size - height (with cap) 0.64 in 16.2 mm
size - height (without protection cap) 0.6 in 15.3 mm
Mass 0.28 oz 7.8 grams [1]
notes
[1] typically
[2] the tolerances of the Model 377C-20 are between 50 and 70% of the permissible deviations in accordance with this standard.
[3] based on 250 Hz
[4] Prepolarized
Accessories
ACS-20 Calibration of a precision capacitor microphone -1
PCB-377C20

Specific References

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377C20_drawing.PDF

Technical drawing

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377C20_manual.PDF

Operating instructions

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377C20_specs.PDF

Technical data sheet

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