Nor1228 1/2″ free field microphone IC61672 Class 1

Nor1228 1/2″ free field microphone IC61672 Class 1

Description

Nor1228 1/2″ microphone IEC61672 Class 1

Nor1228 Datasheet

Nor1228 Microphone

Nor1228 is a ½” free-field, high sensitivity, low cost self-polarised Class 1 microphone. Ideal for use in multi channels systems or other applications that requires a self polarised IEC 61672 Class 1 microphone at low cost.

Cartridge size 1/2″
Main standard IEC61672, Class 1
Polarization Voltage 0 Volt
IEC61094-4 type Designation WS2F Free field microphone
Nominal sensitivity @ 250 Hz 50 mV/Pa
Frequency response +/- 1 dB 20 – 10 kHz
Frequency response +/- 3 dB 12.5 – 16 kHz
Maximum SPL 3% 146 dB
Self Noise (thermal noise) 16 dB(A)
Response Free field
Capacitance 16 pF
Effective front volume 50 mm3
Temperature coeffecient @ 250 Hz
– 10 to + 50 Celsius < – 0.005 dB/Celsius
– 40 to + 150 Celcius <  —
Maximum temperature 80 Celsius
Static pressure coeff. @ 250 Hz – 0.004 dB/kPa
Relative humidity – 0.003 dB/%
Vibration sensitivity 62 dB
Magnetic field effect 4 dB
Diameter with protection grid 13.2 mm
Length with protection grid 17.3 mm
Weight with protection grid 9 gram