CRY3281 Free-field Microphone, 1/2″，External-polarized, 12.5mV/Pa
The CRY3281 is a 1/2-inch externally polarized measurement microphone designed for high-frequency and high-dynamic-range acoustic measurements.
Boasting a distinctive design, the CRY3281 delivers a flat frequency response across a measurement range of up to 40 kHz. Capable of withstanding sound pressure levels up to 160 dB, it is ideally suited for high-definition audio measurements and advanced ultrasonic acoustic applications.
High-frequency free-field microphone
Extensive compatibility
Durable, reliable, and high-quality
CRY3281 Measurement Microphone Typical Frequency Response
The graph (right) shows the frequency response curves for 0° incidence in a free-field environment and the frequency response curves obtained using the electrostatic excitation method.
Technical Specifications
Technical specification
Field Type
Free-field
Noominal Sensitivity
12.5mV/Pa, -38±1.5dB re 1V/Pa
Frequency Response
3.15Hz to 40kHz±2dB
Polarization Voltage
200V
Dynamic Range(re.20uPa)
23dBA to 160dB
Operating Temperature
-30 to +80℃ (-22 to +176℉)
Temperature Stability
0.005dB/℃(-10 to +50℃) 0.003dB/℉(+14 to +122℉)
Static Pressure Stability
-0.01dB/kPa
Operating Humidity Range
0 to 90%RH no condensation
Humidity Stability
< 0.1dB (0 to 90%RH no condensation)
Pressure Equalization Vent
Rear vented
IEC 61094-4 Type
WS2F
Height with Grid
12.7mm (0.500″)
Diameter with Grid
13.2mm (0.520″)
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Measure Sound Better
At CRYSOUND, we blend precision with passion. With over 25 years of experience in delivering high-quality acoustic measurement products, we are dedicated to providing advanced solutions that empower users to be the champions of audio test and detection solutions.