
SEHT 40-10 USER MANUAL Edition 1
Page 3
SPECIFICATIONS
Noise Reduction Rating (NRR):
24dB
Headphone:
Type:
Dynamic
Frequency Response:
50Hz to 20kHz
Sensitivity:
95±5dB SPL (1kHz, 1mW input per side)
Active Noise Attenuation: Dynamic 42 Ohms: Rated Input: 30mW, Max. Input: l00mW
Speech Sound:
Dynamic 300 Ohms: Rated Input: 30mW, Max. Input: l00mW
(full volume on ear simulator)
Microphone and Amplifier:
Element Type:
Noise-cancelling electret
Frequency Response:
100Hz to 5kHz
Operating Voltage:
8-32VDC
(supplied by aircraft)
Matching Impedance:
150-1000 Ohms
Sensitivity:
-33±4d
(ref: 0dB SPL=20.0uPa
at 1kHz with 10 VDC 150 Ohms AC load)
General:
Operating Temp:
-20 to 70°C
Cord:
Straight cord from headset to moulded plugs, 150cm
Connections:
Earphone Plug :
PJ-055 (0.25" 6.30 phone plug)
Microphone Plug : PJ-068 (0.206" 5.20 phone plug)
Weight:
300g
Noise Reduction Specifications:
Attenuation Frequency Band ........................................................ 20Hz~20KHz
Main Attenuation Frequency Band ............................................... 20Hz~600Hz
Attenuation Capability. ................................................................. 18~21dB
Power Consumption ..................................................................... 30mW
General:
Height:
10 to 14cm
Colo
u
r:
Black
Boom:
Flexible