Model Number
HT378A 06
ICP MICROPHONE SYSTEM
Revision: E
ECN #: 49881
P erfo rm an ce
EN G L ISH
SI
Nominal Microphone Diameter
1/2"
1/2"
Frequency Response Characteristic
Free-Field
Free-Field
Sensitivity
12.6 mV/Pa
12.6 mV/Pa
[1]
Sensitivity
(± 2 dB)
- 38 dB re 1 V/Pa
- 38 dB re 1 V/Pa
[1]
Frequency Range(± 3 dB)
3.15 to 40,000 Hz
3.15 to 40,000 Hz
Frequency Range
(± 2 dB)
3.15 to 31,500 Hz
3.15 to 31,500 Hz
Frequency Range
(± 1 dB)
5 to 16,000 Hz
5 to 16,000 Hz
Lower Limiting Frequency(- 3 dB)
1.0 to 2.4 Hz
1.0 to 2.4 Hz
Inherent Noise
23 dB(A) re 20 µPa
23 dB(A) re 20 µPa
[2]
Dynamic Range(3% Distortion Limit)
153 dB re 20 µPa
153 dB re 20 µPa
[2]
TEDS Compliant
Yes
Yes
[3]
En viro n m en tal
Temperature Range(Operating)
-40 to +248 °F
-40 to +120 °C
Temperature Coefficient of Sensi14
to +158°F (-10 to +70°C))
0.003 dB/°F
0.006 dB/°C
[2][1]
Static Pressure Coefficient
- 0.007 dB/kPa
- 0.007 dB/kPa
[2][1]
Humidity Coefficient of Sensitivity(0 to
100%, non-condensing)
0.002 dB/%RH
0.002 dB/%RH
[1][2]
Influence of Axial Vibration(0.1g (1 m/s²))
66 dB re 20 µPa
66 dB re 20 µPa
[2]
Electrical
Polarization Voltage
0 V
0 V
[4]
Excitation Voltage
20 to 30 VDC
20 to 30 VDC
Constant Current Excitation
2 to 20 mA
2 to 20 mA
Output Bias Voltage
10 to 14 VDC
10 to 14 VDC
Maximum Output Voltage
± 7 Vpk
± 7 Vpk
Output Impedance
< 50 Ohm
< 50 Ohm
P h ysical
Housing Material
Stainless Alloy
Stainless Alloy
Venting
Rear
Rear
[5]
Electrical Connector
BNC Jack
BNC Jack
Mounting Thread(Grid)
0.5 - 60 UNS
0.5 - 60 UNS
Size - Diameter(with grid)
0.52 in
13.2 mm
Size - Diameter
(without grid)
0.50 in
12.7 mm
Size - Height(with grid)
3.74 in
95 mm
Size - Height
(without grid)
3.72 in
94.5 mm
Weight
1.69 oz
48 gm
[2]
[6]
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 Piezotronics, Inc.
OP TION A L VERSION S
Optional versions have identical specifications and accessories as listed for the standard model
except where noted below. More than one option may be used.
N OTES:
[1]re 250 Hz
[2]Typical.
[3]TEDS Capable Digital Memory and Communication, compliant with IEEE 1451.4
[4]Prepolarized
[5]Venting through Preamp.
[6]See PCB Declaration of Conformance PS065 for details.
Date: 08/21/2019
Date: 08/21/2019
Date: 08/21/2019
Date: 08/21/2019
60055
Entered: lnk
Engineer: MJN
Sales: MV
Approved: NJF
Spec Number:
3425 Walden Avenue, Depew, NY 14043
P h o n e: 716-684-0001
F ax: 716-684-0987
E-M ail: in fo @ p cb .co m
SU P P L IED A C C ESSORIES:
Model ACS-63 Calibration (with TEDS) of Precision Condenser Microphones and
Preamplifiers together (mated pair). (1)
