Reliability test – BeStar BMS1813F-11C-08H4.5 LF User Manual
Page 11

3.Sensitivity difference at 2.0KHz shall be within
±3dB from initial value after test.
6.5 Temperature Cycle Test
Cycles 10
Notice:
1.Immediately after reliability test,the samples shall be stored under climatic conditions
such as normally exist in ordinary rooms or laboratories.Unless otherwise noted,the
recovery period shall be 4hrs at least before performance testing.
2. After reliability test ,all samples must be meet the requirements specified
6.6 Drop Test
Height 1.0m
Drop face thick board (20mm)
Times 10 (three times in
each durection )
+25
-40
T(
°C)
+85
t (min)
30
1 cycles
30
30
transition time:20-30s
6.3 Low Temperature Test
Temperature -40
±3°C
Duration 96hrs
6.1 Load Test
Power (Nom) 0.5W(sine wave/in 1cc box)
Duration 96hrs
6.2 High Temperature Test
Temperature
+85
±3°C
Duration
96hrs
6. Reliability Test
6.4 Damp Heat
Temperature 40
±3°C
Relative Humidity
90%-95%RH
Duration
96hrs
B
6
A
4
5
3
C
2
1
A
B
C
D
E
F
G
H
6
4
5
3
D
E
F
G
1
2
Drawn
Rev.
Date
Approved by:
Checked by:
Note
Page:11 of 13
Speaker
T
h
is
p
ri
n
t
a
n
d
i
n
fo
rm
a
ti
o
n
t
h
e
re
i
n
a
re
p
ro
p
ri
e
ta
ry
t
o
B
e
s
ta
r
A
c
o
u
s
ti
cs
C
o
.,
L
td.
a
n
d
s
h
a
ll
n
o
t
b
e
u
s
e
d
i
n
w
h
o
le
o
r
in
p
a
rt
w
it
h
o
u
t
it
s
w
ri
tt
en
c
on
tent
BMS1813F-11C-08H4.5 LF
DRG NO: BS/TES01.1230B
BMS1813F-11C-08H4.5 LF
汪珍珍
Drawn by:
Date:
B
王凯
王凯
王凯
2013/09/10
2013/09/10