PCB-377B02
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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 diameter 1/2 "
application free field
Sensitivity in open circuit 50 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 61094-4 WS2F
Operating conditions
The temperature range (operation) -40 ... 302 ° F -40 ... 150 ° C
Temperature coefficient of sensitivity (-10 ... 50 ° C) 0.005 dB / ° F 0.009 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 voltage 0 V [3]
physical properties
housing material Stainless Alloy
pressure equalization behind
Mounting thread (preamp) 0.4606 "- 60 UNS 11.7 mm - 60 UNS
Mounting thread (for cap) 0.5 "- 60 UNS 12.7 mm - 60 UNS
Size - diameter (with cap) 0.52 in 13.2 mm
Size - diameter (without cover) 0.5 in 12.7 mm
Size - Height (with cap) 0.64 in 16.2 mm
Size - Height (without cap) 0.6 in 15.3 mm
Dimensions 0.28 oz 7.8 grams [1]
Hints
[1] typically,
[2] Relative to 250 Hz
[3] prepolarised
included supply
ACS-20 Calibration of precision condenser microphones -1
PCB-377B02

Specific References

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377B02_drawing.PDF

Technical drawing

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377B02_manual.PDF

Operating instructions

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377B02_specs.PDF

Technical data sheet

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