Nor1227 1/” microphone IEC61672 Class 1

Nor1227 1/” microphone IEC61672 Class 1

Description

Nor1227 1/2″ microphone IEC61672 Class 1

Nor1227 Datasheet

Nor1227 Microphone

Nor1227 is a ½” free-field, high sensitivity self-polarized microphone for use in applications where environmental or safety considerations do not permit the use of 200-volt polarization supplies, or as a general IEC 61672 Class 1 microphone in sound level meters with no polarization voltage.

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 5 – 10 kHz
Frequency response +/- 3 dB 3.15 – 16 kHz
Maximum SPL 3% 146 dB
Self Noise (thermal noise) 15 dB(A)
Response Free field
Capacitance 14 pF
Effective front volume 50 mm3
Temperature coeffecient @ 250 Hz
– 10 to + 50 Celsius < – 0.005 dB/Celsius
– 40 to + 150 Celcius < – 0.01
Maximum temperature 150 Celsius
Static pressure coeff. @ 250 Hz – 0.0008 dB/kPa
Relative humidity Not measureable
Vibration sensitivity 62 dB
Magnetic field effect 3.5 dB
Diameter with protection grid 13.2 mm
Length with protection grid 16.2 mm
Weight with protection grid 6 gram