MP251 Microphone

MP251 is 1/2’’ pressure-field microphone and is designed to make the measurement in an ear simulator, a coupler or the sound pressure on a surface.


Technical Parameters
Specification
Response Pressure Field
Diameter 1/2 inch

Open-circuit Sensitivity (mV/Pa) (±2dB)

10
Capacitance  12pF
Polarization Voltage 0V
Frequency Response 8 Hz ~ 20 kHz
Dynamic Range 25~ 146 dB

Inherent Noise

25 dB (A)
Pressure Equalization Vent Rear Vented
Operating Temperature -30°C ~ 80°C
Operating Humidity 0 ~ 98% RH

Equivalent Air Volume (250 Hz) (mm3)

30
Temperature Coefficient  -0.02

Humidity Influence

< 0.1

Pressure Coefficient (250 Hz) - 0.005 dB/kPa

Screw Thread

M11.7 – 60UNS


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MP251