Model: 2530

Add to Cart for Quote

Call for lead time

1/4 in random incidence, condenser microphone, typical sensitivity = 1.3 mV/Pa. 200 VDC polarization

Externally polarized 1/4 inch random incidence microphone, 1.45 mV/Pa, 70 kHz.

  • Nominal Microphone Diameter: 1/4"
  • Frequency Response Characteristic: Random Incidence
  • Frequency Range: (±1dB) 6 to 16000 Hz
  • Dynamic Range: >172 dB re 20 µPa

Add this product to my product comparison
Compare selected models ()

Nominal Microphone Diameter1/4"1/4" 
Frequency Response Characteristic (at 0° incidence)Random IncidenceRandom Incidence 
Open Circuit Sensitivity (±2 dB)-56.7 dB re 1 V/Pa-56.7 dB re 1 V/Pa[2] 
Open Circuit Sensitivity1.45 mV/Pa1.45 mV/Pa[2] 
Frequency Range (±1 dB)6 to 16000 Hz6 to 16000 Hz 
Frequency Range (±2 dB)4 to 70000 Hz4 to 70000 Hz 
Lower Limiting Frequency (-3 dB)0.5 to 3.0 Hz0.5 to 3.0 Hz 
Resonant Frequency (90° Phase Shift)70000 Hz70000 Hz[1] 
Inherent Noise<31 dB(A) re 20 µPa<31 dB(A) re 20 µPa 
Dynamic Range (3% Distortion Limit)>172 dB re 20 µPa>172 dB re 20 µPa 
Standards Designation (IEC 61094-4)WS3FWS3F 
Temperature Range (Operating)-40 to 302 °F-40 to 150 °C 
Temperature Coefficient of Sensitivity (+14 to +122°F (-10 to +50°C))0.004 dB/°F0.01 dB/°C[1] 
Static Pressure Coefficient-0.0014 dB/kPa-0.0014 dB/kPa[1] 
Humidity Coefficient of Sensitivity (0 to 90%, non-condensing)±0.001 dB/%RH±0.001 dB/%RH 
Influence of Axial Vibration (0.1g (1 m/s²))70 dB re 20 µPa70 dB re 20 µPa[1] 
Capacitance (Polarized)6.6 pF6.6 pF[1] 
Polarization Voltage200 V200 V 
Housing MaterialStainless AlloyStainless Alloy 
Mounting Thread (Preamplifier)0.2244 - 60 UNS5.7 mm - 60 UNS 
Mounting Thread (Grid)0.25 - 60 UNS6.35 mm - 60 UNS 
Size - Diameter (with grid)0.276 in7 mm 
Size - Diameter (without grid)0.250 in6.35 mm 
Size - Height (with grid)0.406 in10.3 mm 
Size - Height (without grid)0.361 in9.2 mm 
Weight0.06 oz1.7 gm[1] 

All specifications are at room temperature unless otherwise specified.

Product Notes
[1] Typical.
[2] re 250 Hz
ACS-20Calibration of Precision Condensor Microphones(1)
Optional Versions:
No optional versions
Product Documents None Listed
Additional Downloads None Listed
Microphone - Safe Handling and Maintenance

Prepolarized vs. externally polarized microphones