CUI DEVICES | MODEL: CMB-6544PF | DESCRIPTION: ELECTRET CONDENSER MICROPHONE

date 08/05/2022 | page 2 of 4

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MECHANICAL CHARACTERISTICS

item

test condition

evaluation standard

soldering heat resistance

Soldering iron of +270 ±5°C should be placed on the

terminal for 2 ±0.5 seconds.

No interference in operation.

PCB wire pull strength

The pull force should be applid to double lead wire:

Horizontal 4.9 N (0.5 kg) for 30 seconds

No damage or cutting off.

vibration test

The part should be measured after a vibration amplitude of 1.5 mm

with 10~55 Hz band of vibration frequency to each of the 3 perpen-

dicular directions for 2 hours.

After any tests, the sensitivity should be within

±3 dB of the initial sensitivity.

drop test

The part without packaging is subjected to 3 drops on each axis

from the height of 1 m onto a 20 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.

After any tests and 6 hours of

conditioning at +25°C, the

sensitivity should be within ±3 dB of the initial

sensitivity.

low temperature test

After being placed in a chamber at -20°C for 72 hours.

thermal shock

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

FREQUENCY RESPONSE CURVE

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