377a21 microphone and 426e01 preamplifier with teds

ICP MICROPHONE SYSTEM

Model 378A21

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(Pricing valid only in the U.S.)

Units in Stock Lead Times
More on the way Lead Time for 1-5 is 6 Wks.
Lead Time for 6-10 is 7 Wks.
  • CE
  • IP

377A21 Microphone and 426E01 preamplifier with TEDS

  • Nominal Microphone Diameter: 1/2"
  • Frequency Response Characteristic: Random Incidence
  • Frequency Range: (±2dB)4 to 25000 Hz
  • Dynamic Range: 150 dB re 20 µPa

Specification Notes


[1] Typical.
[2] TEDS Capable Digital Communication, compliant with IEEE 1451.4
[3] re 250 Hz
[1] Typical.
[3] re 250 Hz
[4] Prepolarized
[1] Typical.
[5] Venting through Preamp.
[6] See PCB Declaration of Conformance PS064 for details.

English: SI:
Performance
Nominal Microphone Diameter 1/2" 1/2"
Frequency Response Characteristic Random Incidence Random Incidence
Sensitivity (±2 dB) -38 dB re 1 V/Pa -38 dB re 1 V/Pa [3]
Sensitivity 12.6 mV/Pa 12.6 mV/Pa [3]
Frequency Range (±2 dB) 4 to 25000 Hz 4 to 25000 Hz
Lower Limiting Frequency (3) 1.0 to 2.4 Hz 1.0 to 2.4 Hz
Inherent Noise 22 dB(A) re 20 µPa 22 dB(A) re 20 µPa [1]
Dynamic Range (3% Distortion Limit) 150 dB re 20 µPa 150 dB re 20 µPa [1]
TEDS Compliant Yes Yes [2]
Environmental
Temperature Range (Operating) -40 to +176 °F -40 to +80 °C
Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to +70°C)) 0.003 dB/°F 0.006 dB/°C [1] [3]
Static Pressure Coefficient -0.007 dB/kPa -0.007 dB/kPa [1] [3]
Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) 0.002 dB/%RH 0.002 dB/%RH [1] [3]
Influence of Axial Vibration (0.1g (1 m/s²)) 67 dB re 20 µPa 67 dB re 20 µPa [1]
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
Physical
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
Size - Height (with grid) 3.47 in 88.3 mm
Size - Height (without grid) 3.46 in 87.8 mm
Weight 1.59 oz 45 gm [1]

* All specifications are at room temperature unless otherwise specified.

Accessories


Supplied
ACS-63 Calibration for microphone/preamplifier with TEDS programming 1

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