PCB-377B02

PCB-377B02

  • Prepolarized 1/2 "precision microphone for free-field applications,

"

  • Sensitivity 50 mV / PA,
  • Dynamic range > 146 dB,
  • Frequency range 3.15 … 20,000 Hz

basic data
Nominal microphone diameter1/2 "
applicationfree field
Sensitivity in open circuit50 mV / Pa[2]
Sensitivity in the open circuit (± 1.5 dB)-26 dB relative to 1 V / Pa[2]
Frequency range (± 1 dB)5 ... 10 000 Hz
Frequency range (± 2 dB)3.15 ... 20,000 Hz
Lower cutoff frequency (-3 dB)1.0 ... 2.4 Hz
Resonant frequency (phase shift 90 °)10,400 Hz[1]
inherent noise<15 dB(A) relative to 20 uPA
Dynamic range (for distortion ?3%)> 146 dB in relation to 20 uPA
Type of microphone in accordance with IEC 61094-4WS2F
Operating conditions
The temperature range (operation)-40 ... 302 ° F-40 ... 150 ° C
Temperature coefficient of sensitivity (-10 ... 50 ° C)0.005 dB / ° F0.009 dB / ° C[2] [1]
Influence of static pressure-0.013 dB / kPa[2] [1]
Humidity coefficient of sensitivity (0 ... 100%, non-condensing)± 0.001 dB /% RH[2]
Influence by axial vibration (0.1 g, 1 m / s²)63 dB relative to 20 uPA[1]
Long-term stability at 150 ° C> 2 hrs / dB
Technical characteristics
capacity (polarized)≤2 pF[1]
polarization voltage0 V[3]
physical properties
housing materialStainless Alloy
pressure equalizationbehind
Mounting thread (preamp)0.4606 "- 60 UNS11.7 mm - 60 UNS
Mounting thread (for cap)0.5 "- 60 UNS12.7 mm - 60 UNS
Size - diameter (with cap)0.52 in13.2 mm
Size - diameter (without cover)0.5 in12.7 mm
Size - Height (with cap)0.64 in16.2 mm
Size - Height (without cap)0.6 in15.3 mm
Dimensions0.28 oz7.8 grams[1]
Hints
[1]typically,
[2]Relative to 250 Hz
[3]prepolarised
included supply
ACS-20Calibration of precision condenser microphones-1

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