CMI-4537-SN69 Datasheet, PDF (3/4 Pages) CUI INC – ELECTRET CONDENSER MICROPHONE

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date 06/2012
page 3 of 4
PART NUMBER: CMI-4537-SN69
DESCRIPTION: ELECTRET CONDENSER
MICROPHONE
MECHANICAL CHARACTERISTICS
item
soldering heat resistance
PCB wire pull strength
vibration test
drop test
test condition
evaluation standard
Soldering iron with 270 ±5°C should be applied on the terminal for No interference in operation.
2 ±0.5 seconds.
The force of 4.9 N is applied for 30 sec. to double lead wire.
No damage or cutting off.
The microphone should be measured after a vibration amplitude
of 1.5 mm with 10 ~ 55 Hz band of vibration frequency to each of
the 3 perpendicular directions for 2 hours.
The microphone without packaging is subjected to 3 drops on
each axis from the height of 1 m onto a 10 mm thick wooden
board.
The sensitivity should be within
±3dB compared with the initial
measurement.
ENVIRONMENT TEST
item
high temperature test
low temperature test
humidity test
temperature cycle test
test condition
After being placed in a chamber at +70°C for 72 hours.
After being placed in a chamber at -20°C for 72 hours.
After being placed in a chamber at +40°C and 90 ±5% RH for
240 hours.
The part will be subjected to 10 cycles. One cycle will consist of:
+70к
+25к
+25к
-20к
1hr 0.5hr 1hr 0.5hr 1hr 0.5hr 1hr
evaluation standard
The microphone will be measured
after being placed at +25°C for 6
hours. The value of the oscillation
frequency should be ±10% compared
to the initial measurements. The SPL
should be within ±3dB compared to
the initial measurements.
TEST CONDITIONS
standard test conditions
judgement test conditions
5.5 hrs
a) Temperature: +5 ~ +35°C
a) Temperature: +25 ±2°C
b) Humidity: 45 ~ 85%
b) Humidity: 60 ~ 70%
c) Pressure: 860 ~ 1060 mbar
c) Pressure: 860 ~ 1060 mbar
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