date
page
PART NUMBER: DESCRIPTION:
06/2012
3 of 4
ELECTRET CONDENSER
MICROPHONE
CMI-4537-SN69
20050 SW 112
th
Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.cui.com
MECHANICAL CHARACTERISTICS
item test condition evaluation standard
soldering heat resistance Soldering iron with 270 ±5°C should be applied on the terminal for
2 ±0.5 seconds.
No interference in operation.
PCB wire pull strength The force of 4.9 N is applied for 30 sec. to double lead wire. No damage or cutting off.
vibration test 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 sensitivity should be within
±3dB compared with the initial
measurement.
drop test 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.
ENVIRONMENT TEST
item test condition evaluation standard
high temperature test After being placed in a chamber at +70°C for 72 hours.
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.
low temperature test After being placed in a chamber at -20°C for 72 hours.
humidity test After being placed in a chamber at +40°C and 90 ±5% RH for
240 hours.
temperature cycle test The part will be subjected to 10 cycles. One cycle will consist of:
TEST CONDITIONS
standard test conditions a) Temperature: +5 ~ +35°C b) Humidity: 45 ~ 85% c) Pressure: 860 ~ 1060 mbar
judgement test conditions a) Temperature: +25 ±2°C b) Humidity: 60 ~ 70% c) Pressure: 860 ~ 1060 mbar
+70к
+25к +25к
-20к
1hr 0.5hr 1hr 0.5hr 1hr 0.5hr 1hr
5.5 hrs
For more information, please visit the product page.
