Nor1220 1/2″ microphone IEC61672 Class 1

Nor1220 1/2″ microphone IEC61672 Class 1

Description

Nor1220 1/2″ microphone IEC61672 Class 1

Nor1220 Datasheet

Nor1220 Microphone

Nor1220 is a ½” free-field response microphone with a high sensitivity.A general purpose microphone with an integral actuator grid to allow electrostatic calibration checks to be carried out without removing the protection grid. Conforms to IEC 61672 Class 1.

Cartridge size 1/2″
Main standard IEC61672, Class 1
Polarization Voltage 200 Volt
IEC61094-4 type Designation WS2F Free field microphone
Nominal sensitivity @ 250 Hz 50 mV/Pa
Frequency response +/- 1 dB 12.5 – 10 kHz
Frequency response +/- 3 dB 3.15 – 16 kHz
Maximum SPL 3% 146 dB
Self Noise (thermal noise) 14 dB(A)
Response Free field
Capacitance 20 pF
Effective front volume 40 mm3
Temperature coeffecient @ 250 Hz
– 10 to + 50 Celsius – 0.01 dB/Celsius
– 40 to + 150 Celcius —
Maximum temperature 100 Celsius
Static pressure coeff. @ 250 Hz – 0.001 dB/kPa
Relative humidity Not measureable
Vibration sensitivity 62 dB
Magnetic field effect 4 dB
Diameter with protection grid 13.2 mm
Length with protection grid 16.4 mm
Weight with protection grid 9 gram