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Reliability test, Transducer, Bestar electronics industry co.,ltd – BeStar BMT0905XH4.2 LF User Manual

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Checked by:

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Date

6

REV.

BESTAR ELECTRONICS INDUSTRY CO.,LTD

5

Drawn

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Approved by:

Note

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Transducer

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Page:04 of 06

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1

BMT0905XH4.2 LF

09/09/26

魏奉玲

徐 波

陶红仲

DRG NO: BS/TET01.261B

BMT0905XH4.2 LF

A

胡海青

04/10/26

B

魏奉玲

09/09/26

RohS

3.1 high temperature test

Temperature +80 C
Duration 96hrs

3.2 low temperature test

Temperature -30 C
Duration 96hrs

3.3 life test in normal temperature

Power supply rated voltage
Duration 1000hrs

3.4 temperature cycle test

Cycles 5

3.5 Humidity cycle test

cycles 5

3.6 Drop test
Height 70cm
(to 10mm thickness woodenboard)
Direction 3

3.7 Solderability test

Solderability temperature 255 C

±5 C

Heat applying time 3sec

±0.5sec

Notice: After the test the part shall meet specifications without
any degrance and performance except S.P.L, S.P.L shall be 78dB more .

30min

12h

65 C90-95%

all these tests above should be measured after leaving normal temperature for 2hrs.

1h

10h

25 C 90-95% RH

15min

30min

-30 C

1h

RH

15min

3. Reliability test

+20 C

+20 C

+80 C