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BLS50-12-25H13 LF
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1.Technical Terms
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No. Item Specifications
1. Size Ø50*13mm
2. Impedance at 1KHz 25± 3.75 Ω
3. Resonance frequency 360± 72Hz
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4. Operating frequency range fo...4K Hz
5. Rated input power 0.25w
6. Maximum input power 0.5w
7. Buzz & Rattle(at sine wave2.8V) must be normal
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8. T.H.D(at 1KHz/250mW) <5%
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F
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9. SPL(1W,1M) at 1.0K Hz 86± 3dB
10 Polarity Positive voltage to (+),
the diaphragm move forward
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11. Operating temperature -40...+70℃
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12. Storage temperature -40...+ 80℃
and shall not be used in whole or in part without its written content
2.FrequencyResponse
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
100.0
90.0
80.0
70.0
B
60.0
50.0
100 1k
10k
Hz
180.0
20k
108.0
36.0
-36.0
-108.0
-180.0
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B
Date:
Drawn by:
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Rev.
06.09.21 付 静
DrawnDate
6 5 4
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
06.09.21
付 静
王 平
郭敏
DRG NO: BS/TES01.649A
3 2 1
BLS50-12-25H13 LF
Speaker
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BLS50-12-25H13 LF
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3.Drawing
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Ø50±0.3
Ø45±0.5
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E
+-
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F
E
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Ø19.3±0.2
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
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B
Date:
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06.09.21 付 静
A
REV.
Date
6
Drawn
5 4
Note
Drawn by:
Checked by:
Approved by:
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06.09.21
付 静
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郭敏
3 2
2.5±0.2
13±0.5
BLS50-12-25H13 LF
DRG NO: BS/TES01.649A
Speaker
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BLS50-12-25H13 LF
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4. Reliability Test
4.1 Load test
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Input Power 0.25W,white noise
Duration 96hrs
4.2 Heat test
Temperature +70 ± 3°C
Duration 96hrs
4.3 Cold test
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Temperature -10 ± 3°C
Duration 96hrs
4.4 Temperature change( shock )
Low Temperature -10 ± 3°C
High Temperature +70 ± 3°C
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Dwell time each temperature 30min
Transfer time from lower to upper temperature<10s
Cycles 100
4.5 Moisture Test
Tempeature +40 ± 2°C
Humidity 92 ± 2%(RH)
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Duration 96hrs
4.6 Drop test
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
Surface(floor) concrete or steel
Height 80cm
Direction X,Y&Z 3axes
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F
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After the test,all electronic and acoustic characteristic should be satisfied
with the specification. SPL: Deviation is of 2dB of initial value.
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Date:
Drawn by:
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A
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REV.
06.09.21
Date
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付 静
Drawn
Checked by:
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06.09.21
付 静
王 平
郭敏
3 2
BLS50-12-25H13 LF
Speaker
DRG NO: BS/TES01.649A
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BLS50-12-25H13 LF
5. Packing
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F
25pcs
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G
F
E
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and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
NO:
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SPEAKER:
QUANTITY:
GR/NET WT: Kg
30.5X21X31 cm
Remark:
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10 pcs paperboard per carton,
10 pcs cardboard per carton,
250 pcs per carton.
each board packed interlaced
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A
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REV.
06.09.21
付 静
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Note
Date:
Drawn by:
Checked by:
Approved by:
06.09.21
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4 3
BLS50-12-25H13 LF
Speaker
DRG NO: BS/TES01.649A
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BLS50-12-25H13 LF
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6. History change record
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version
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No.
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F
E
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Before
Change Items
After
Date
06.09.21
付 静
ApprovedDrawn
郭敏
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F
E
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
B
A
A
A
REV.
06.09.21
付 静
DrawnDate
6 5
Note
Date:
Drawn by:
Checked by:
Approved by:
06.09.21
付 静
王 平
郭敏
www.be-star.com wu@be-star.com
4 3
BLS50-12-25H13 LF
Speaker
DRG NO: BS/TES01.649A
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