Bestar, Bestar electronics industry co.,ltd, Microphone – BeStar BCM9750-40 User Manual
Page 4: Environment test
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DATE
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Bestar Electronics
DRG NO
BS/TEM01.048A
3
2
1
3rd angle
projection
Microphone
A
BCM9750-40
Page:3 of 3
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3.1 High temp.life test
Temperature +70 C
Duration 200hrs
3.2 Low temp.life test
Temperature -25 C
Duration 200hrs
3.3 Temperature cycle test
Cycles 5
3.4 Humidity Test
Temperature +60 C
Relative Humidity 90~95%
Duration 200hrs
Tests above should be measured after leaving normal temperature for 6hrs.
3.5 Vibration Test
Vibration Frequency 10~55Hz
Amplitude 1.52mm/min
Direction 3(x.y&z)
Duration 2hrs each cycle(total 6 hrs)
3.6 Drop test
Height 1m
(Dropped to 20mm thick hardwood board without packing.)
Direction 3
3.7 Soldering Heat Shock
Temperature 260 5 C
Duration 10 1 sec
3.8 Terminal Mechanical Strength
Strength 1kg
Duration 1 min
3.9 Storage Temperature: -20~+60 C
Notice:
All specifications must be satisfied in this condition.
Sensitivity :Allowable deviation within 3dB from initial sensitivity.
70 C
+20 C
-55 C
3.Environment Test
+20 C
BESTAR ELECTRONICS INDUSTRY CO.,LTD
TianAn Industry Park 4/F,Site B ChangZhou New District
E-Mail:bestarco@ pub.cz.jsinfo.net Http:www.be-star.com
BCM9750-40
30mins
30mins 10mins
10mins