Bdt4308-lf, Reliability test, 50 cycles – BeStar BDT4308 LF User Manual
Page 5: 30min ℃ 1h

T
h
is
p
ri
n
t
a
n
d
i
n
fo
rm
a
tio
n
t
he
re
i
n
a
re
p
ro
p
ri
e
ta
ry
t
o
B
e
s
ta
r
E
le
c
tr
o
n
ics
I
ndu
s
tr
y
C
o
.,
L
td.
a
nd
s
h
a
ll
no
t
b
e
u
s
ed
i
n
w
h
o
le
o
r
in
pa
rt
w
ith
ou
t
it
s
w
ri
tt
en
c
on
tent
Drawn by:
Checked by:
Approved by:
Date
Rev.
6
A
Drawn
Note
5
4
3
2
Page:4 of 6
1
Speaker
A
Date:
B
C
D
B
C
D
5.Reliability test
F
E
G
F
E
G
H
6
5
4
H
3
2
1
5.2 High temperature test
Temp. +105 ℃
Duration 240hrs
5.3 Low temperature test
Temp. -40
°c
Duration 240hrs
5.4 Humidity test
Temp. +40
°c
Relative humidity 90...95%RH
Duration 96hrs
5.5 Temperature cycle test
All these tests above should be measured after leaving 25 ℃ temperature room for 2hrs.
5.6 Drop test
Height 1m
Direction X.Y&Z 3axis
(Dropped in the packing to 10mm thickness wooden board)
5.7 Vibration Test
Vibration frequency 10 ~55Hz
Amplitude 1.5mm
Duration x,y&z directions 30min
After each test of 5.2 to 5.4, speakers should be measured after 2hrs exposed in normal
temperature.
After each test, performance should be satisfied with spec.
5.1 Load Test
Power 0.6W
Duration 96hours
30min
℃
1h
℃
50 cycles
30min
℃
1h
℃
BDT4308-LF
A
08/03/10
莫丽丽
张秀琴
丁小军
莫丽丽
08/03/10
BDT4308-LF
DRG NO: BS/TES01.270A