Model Number
377B02
PRECISION CONDENSER MICROPHONE
Revision: H
ECN #: 42896
Performance
ENGLISH
SI
Nominal Microphone Diameter
1/2"
1/2"
Frequency Response Characteristic(at 0° incidence)
Free-Field
Free-Field
Open Circuit Sensitivity
50 mV/Pa
50 mV/Pa
[3]
Open Circuit Sensitivity
(± 1.5 dB)
-26 dB re 1 V/Pa
-26 dB re 1 V/Pa
[3]
Frequency Range(± 1 dB)
5 to 10,000 Hz
5 to 10,000 Hz
Frequency Range
(± 2 dB)
3.15 to 20,000 Hz
3.15 to 20,000 Hz
Lower Limiting Frequency(-3 dB)
1.0 to 2.4 Hz
1.0 to 2.4 Hz
Resonant Frequency(90° Phase Shift)
10,400 Hz
10,400 Hz
[1]
Inherent Noise
<15 dB(A) re 20
µPa
<15 dB(A) re 20
µPa
Dynamic Range(3% Distortion Limit)
>146 dB re 20 µPa
>146 dB re 20 µPa
Standards Designation(IEC 61094-4)
WS2F
WS2F
Environmental
Temperature Range(Operating)
-40 to +302 °F
-40 to +150 °C
Temperature Coefficient of Sensi14 to +122°F (-10 to +50°C))
0.005 dB/°F
0.009 dB/°C
[1][3]
Static Pressure Coefficient
-0.013 dB/kPa
-0.013 dB/kPa
[1][3]
Humidity Coefficient of Sensitivity(0 to 100%, non-condensing)
± 0.001 dB/%RH
± 0.001 dB/%RH
[3]
Influence of Axial Vibration(0.1g (1 m/s²))
63 dB re 20 µPa
63 dB re 20 µPa
[1]
Long Term Stability(150°C (302°F))
>2 hrs/dB
>2 hrs/dB
Electrical
Capacitance(Polarized)
12 pF
12 pF
[1]
Polarization Voltage
0 V
0 V
[2]
Physical
Housing Material
Stainless Alloy
Stainless Alloy
Venting
Rear
Rear
Mounting Thread(Preamplifier)
0.4606 - 60 UNS
11.7 mm - 60 UNS
Mounting Thread
(Grid)
0.5 - 60 UNS
12.7 mm - 60 UNS
Size (Diameter x Height)(with grid)
0.52 in x 0.64 in
13.2 mm x 16.2
mm
Size (Diameter x Height)
(without grid)
0.5 in x 0.6 in
12.7 mm x 15.3
mm
Weight
0.28 oz
7.8 gm
[1]
All specifications are at room temperature unless otherwise specified.
In the interest of constant product improvement, we reserve the right to change specifications without notice.
ICP
®
is a registered trademark of PCB Group, Inc.
OPTIONAL VERSIONS
Optional versions have identical specifications and accessories as listed for the standard model
except where noted below. More than one option may be used.
NOTES:
[1] Typical.
[2] Prepolarized
[3] re 250 Hz
SUPPLIED ACCESSORIES:
Model ACS-20 Calibration of Precision Condensor Microphones (1)
Entered: AP
Engineer: MJN
Sales: MV
Approved: MT
Spec Number:
Date: 5/7/2014
Date: 5/7/2014
Date: 5/7/2014
Date: 5/7/2014
29289
3425 Walden Avenue, Depew, NY 14043
Phone: 716-684-0001
Fax: 716-684-0987
E-Mail: [email protected]
