3 of 4
page
date
06/2008
PART NUMBER: CMA-4544PF-W
DESCRIPTION: electret condenser microphone
MECHANICAL CHARACTERISTICS
item
test condition
evaluation standard
Lead terminals are immersed in solder ꢀath of No interference in operation.
270 5°C for 2 0.5 seconds.
soldering heat resistance
PCB wire pull strength
viꢀration
The pull force will ꢀe applied to douꢀle lead
wire:
No damage or cutting off.
Horizontal 4.9N (0.5kg) for 30 seconds
The part will ꢀe measured after applying a
viꢀration amplitude of 1.5 mm with 10 to 55 Hz
ꢀand of viꢀration frequency to each of the
3 perpendicular directions for 2 hours.
The part will ꢀe dropped from a height of
1 m onto a 20 mm thick wooden ꢀoard 3 times
in 3 axes (X, Y, Z) for a total of 9 drops.
After any tests, the sensitivity
should ꢀe within 3dB compared
to the initial measurement.
drop test
ENVIRONMENT TEST
item
test condition
evaluation standard
high temp. test
After ꢀeing placed in a chamꢀer at +70°C for
72 hours.
low temp. test
humidity test
After ꢀeing placed in a chamꢀer at -20°C for
72 hours.
After ꢀeing placed in a chamꢀer at +40°C and
90 5ꢁ relative humidity for 240 hours.
The part shall ꢀe suꢀjected to 10 cycles. One
cycle will consist of:
temp. cycle test
The part will ꢀe measured after
ꢀeing placed at +25°C for 6
hours. After any tests, the
sensitivity should ꢀe within 3dB
compared to the initial
measurement.
TEST CONDITIONS
standard test condition
judgement test condition
a) temperature: +5 ~ +35°C
a) temperature: +25 2°C
ꢀ) humidity: 45 - 85ꢁ
ꢀ) humidity: 60 - 70ꢁ
c) pressure: 860-1060 mꢀar
c) pressure: 860-1060 mꢀar
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383
CUI [ CUI INC ]
