PCB-EX378B02

specifications
basic data	English units	SI units
Nominal microphone diameter	1/2"
application	Freifeld
Sensitivity in the open circuit	50 mV / Pa		[2]
Sensitivity in open circuit (± 1.5 dB)	-26 dB relative to 1 V / Pa		[2]
Frequency range (± 1 dB)	7 … 10.000 Hz
Frequency range (± 2 dB)	3,75 … 20.000 Hz
Lower cutoff frequency (3dB)	1.0 to 3.0 Hz
inherent noise	<15.5 dB (A) based on 20 μPa		[1]
Dynamic range (for harmonic distortion ≤3%)	> 137 dB based on 20 μPa		[1]
Operating conditions
Temperature range (operation)	-40 … 176 °F	-40 … 80 °C
Temperature coefficient of sensitivity (+14 to + 158®F (-10 to + 70 ° C))	0.005 dB/°F	0.009 dB/°C	[1][2]
Influence by static pressure	-0,013 dB/kPa		[1][2]
Influence by humidity (0 ... 100%, non-condensing)	-0,01 … 0,01 dB/% RH		[2]
Influence by axial vibration (0.1 g, 1 m / s²)	63 dB based on 20 μPa		[1]
Technical characteristics
Polarisationsspannung	0 v		[3]
supply voltage	20 … 30 VDC
Constant current supply	2 ... 20 mA
Bias voltage	10 … 14 VDC
output impedance	<50 Ω
Maximum output range	±7 Vpk
Physical properties
housing material	Stainless alloy
pressure equalization	behind		[4]
Electrical connection	BNC-Stecker
Mounting thread (protective cap)	0.5 - 60 US
Size - diameter (with protective cap)	0,52 in	13,2 mm
Size - diameter (without cap)	0,50 in	12,7 mm
Size - height (with protective cap)	4,02 in	102,1 mm
Size - height (without cap)	3,99 in	101,2 mm
Mass	1,87 oz	53 grams	[1]

included supply
ACS-63	Calibrate precision condenser microphones and preamplifiers together	(1)