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Model: 130B40

$900.00 USD
(Pricing valid in US only)


Low-profile surface pressure microphone and preamp, prepolarized

  • Frequency Response Characteristic: Pressure
  • Inherent Noise: <32 dB(A) re 20 µPa
  • Dynamic Range: 150 dB re 20 µPa

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Frequency Response CharacteristicPressurePressure 
Frequency Response (+/-1 dB)100 to 3000 Hz100 to 3000 Hz 
Frequency Response (+/-3 dB)20 to 10000 Hz20 to 10000 Hz 
Frequency Response (+/-6 dB)20 to 20000 Hz20 to 20000 Hz 
Sensitivity (@ 250 Hz)8.5 mV/Pa8.5 mV/Pa 
Sensitivity (+/-3 dB) (@ 250 Hz)-41.4 dB re 1 V/Pa-41.4 dB re 1 V/Pa 
Inherent Noise<32 dB(A) re 20 µPa<32 dB(A) re 20 µPa 
Dynamic Range (High)150 dB re 20 µPa150 dB re 20 µPa[1][2] 
Dynamic Range(3% Distortion Limit)>142 dB re 20 µPa>142 dB re 20 µPa 
TEDS Compliant (Per IEEE 1451.4)YesYes 
Temperature Range (Operating)-40 to +176 °F-40 to +80 °C[3] 
Influence of Axial Vibration (0.1g (1 m/s²))4.5 dB re 20 µPa4.5 dB re 20 µPa[2] 
Excitation Voltage18 to 30 VDC18 to 30 VDC 
Constant Current Excitation2 to 20 mA2 to 20 mA 
Output Bias Voltage9 to 14 VDC9 to 14 VDC 
Output Impedance≤50 Ohm≤50 Ohm 
Housing MaterialStainless SteelStainless Steel 
Electrical Connector (Output)Integral CableIntegral Cable 
Cable Type030 Coaxial030 Coaxial 
Cable Length5 ft1.5 m 
Cable Termination10-32 Coaxial Plug10-32 Coaxial Plug 
Size - Diameter (overall)0.52 in13.2 mm 
Size - Diameter (head)1.62 in41.0 mm 
Size - Height0.126 in3.20 mm 
Weight0.3 oz7 gm[2] 
Weight (without cable)0.03 oz0.8 gm[2] 

All specifications are at room temperature unless otherwise specified.


Product Notes
[1] Max without clipping.
[2] Typical.
[3] Sensitivity can change with significant variations in temperature.
[4] See PCB Declaration of Conformance PS023 for details.
070A02Scope input adaptor (micro 10-32 jack to BNC plug)(1)
100-11180-10IPA Wipe(2)
54924-01Double Sided Base Adhesive Pad(5)
54925-01Single Sided Top Adhesive Pad(5)
55739-01Silicone Fairing(1)
ACS-21Calibration of Electret Microphone(1)
Optional Versions:
No optional versions
Product Documents
Additional Downloads
Microphone - Safe Handling and Maintenance

Prepolarized vs. externally polarized microphones

Surface microphone overview