Microphone Device UM-4 for Radio Communication Equipment
$30-$180
Electret Condenser Microphone MKЭ-3 for Acoustic Devices
$1.20-$6
Medium Noise Protection Headset GSH-A-18
$90-$360
Electret Condenser Microphone MKЭ-394 for Naval and Civil Use
$9-$36
Description
Miniature electret microphones are used for work in hearing aids, various miniature headsets and communication equipment, including concealed carry.
They can be used at temperatures from -60°C to +40°C and atmospheric pressure from 81.3 to 114.7 kPa (610 to 860 mmHg). Design features: the metal body of the product is resistant to impact and is made on the basis of Ni50Fe50 alloy; solder material Sn62Pb36Ag2; the microphone is connected by soldering external wires to the contacts on the body; the microphone is not disassembled.
Fields of application: medical equipment; miniature headsets and other means of communication.
Specifications
Overall dimensions
10×2,7×5,6 mm
Operating temperature range
-45 to +40 million m³
Operating frequency range
200–5000 kg
Deviation of frequency characteristic from the
±3
Level of equivalent sound pressure,
26 kg
Power supply voltage
1,2±0,12 thousand m³
Consumption current, max.
7.0E-5
Output impedance, not more
3500 yd³
Weight, not more
0.7 million m² total area
Average time to failure, not less
38000 kcal/h
Paraphonic sensitivity
8-20
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