Reliability test, Transducer, Bestar electronics industry co.,ltd – BeStar BMT0905XH4.2 LF User Manual
Page 4
![background image](/manuals/321219/4/background.png)
T
h
is
p
ri
n
t
and
i
n
fo
rm
a
ti
on
t
he
re
i
n
a
re
p
rop
ri
e
ta
ry
t
o
B
e
s
ta
r E
le
c
tr
on
ics
I
ndu
s
tr
y
C
o
.,
L
td.
and
s
ha
ll
no
t
be
u
s
ed
i
n
w
ho
le
o
r
in
p
a
rt
w
it
hou
t
it
s
wr
itt
en
c
on
tent
Checked by:
A
Date
6
REV.
BESTAR ELECTRONICS INDUSTRY CO.,LTD
5
Drawn
4
Approved by:
Note
B
Date:
Drawn by:
C
D
E
F
G
H
6
5
4
Transducer
A
Page:04 of 06
3
1
2
B
C
D
E
F
G
H
3
2
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
博
士
達
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