KNOWLES

KNOWLES - NR microphone serie

Dimensions (mm):
4.00 x 5.59 x 2.28
Directivity:
Noise canceling
Features:
Electret mic for noisy environmentsSuperior noise cancelling performance Low vibration sensitivity
Key features:
The NR Series close talking microphones deliver state-of-the-art noise canceling performance. NR microphones are used as headset microphones in the most demanding communication and speech recognition environments. The NR Series microphones are available in boom microphone packages. See Boom section for details.

Integral FET amplifier / Withstands severe environmental conditions
Diaphragm responds to pressure differential giving high rejection of background noise
Low vibration sensitivity / High electoacoustical sensitivity
Superior noise canceling performance / Lead attachment available
Reference Sensitivity @ 1kHz (dB re1V/0.1Pa DC Supply (V) Max. Amplifier Current Drain (uA) Typ. “A” Weighted Noise (1 kHz Equivalent SPL) Nominal Output Impedance (Ω) Comments
NR-23158-000 -49.0±3 1.3 nom. 10 max 50.0 -100.0 4400.0 3-Wire
NR-23159-000 -65.0±3 1.3 nom. 10 max 200.0 -100.0 2500.0 2-Wire
NR-23160-000 -52.0±3 1.3 nom. 10 max 200.0 -100.0 2500.0 2-Wire
NR-25994-000 -49.0±3 1.3 nom. 10 max 50.0 -100.0 4400.0 3-Wire
NR-25994-D63 -55.0±4 1.3 nom. 10 max 300.0 -100.0 2000.0 2-Wire
NR-30610-D63 -59.0±3 3.0 nom. 10 max 550.0 -100.0 2000.0 2-Wire