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SPECIFICATION
07
www.be-star.com
RoHS
Customer
Date
Page
21 Dec. 11
01 of 07
Approval：
1.Characteristics
2.Drawing
3.Reliability Test
4.Packing
5.History Change Record
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BLS70-2-08H38.5 LF
127501
BS/TES01.1100A
2012/01/12
Drawn by
汪凤声
Checked by
王文邦 王 平
Approved by
BESTAR ELECTRONICS INDUSTRY CO.,LTD
No.199 HuangHe West Road.New district,ChangZhou,JiangSu Province,P.R.China
Tel: +86 519 88222567 Fax: +86 519 88222551
E-mail:wu@be-star.com http://www.be-star.com
Customer approved
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BLS70-2-08H38.5 LF
1.Characteristics
1.1 Electrical and Mechanical Characteristics
No. Item Specifications
G
1. Size Ø70x38.5mm
2. Impedance at 1KHz 8±1.2 Ω
3. Resonance frequency 160±40Hz
4. Operating frequency range fo...20K Hz
F
5. Rated input power 5W
6. Maximum input power 8W
7. Buzz & Rattle(at sine wave6.5V) must be normal
8. SPL(1W/1M/88± 3dB) (at 0.8、1.0、1.2、1.5KHz average)
E
9. Polarity Positive voltage to (+),
G
F
E
the diaphragm move forward
10. Magnet material Ferrite
11. Operating temperature -20...+70°C
D
1.2 Test Method
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
1m
Power Amplifier
D
C
1W(2.83Vrms)
B
Speaker
Mic
Audio
Analyser
B
Anechoic chamber
Date:
A
A
Rev.
2012/01/12
Date
6
汪凤声
Drawn
Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/01/12
汪凤声
王文邦
王 平
BLS70-2-08H38.5 LF
Speaker
DRG NO:BS/TES01.1100A
2 1
A
Page:02 of 07
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BLS70-2-08H38.5 LF
1.3 Frequency Response Curve (only for reference)
G
F
E
G
F
E
1.4 Total Harmonic Distortion Curve ( only for reference)
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
D
C
B
Date:
A
A
Rev.
2012/01/12
Date
汪凤声
Drawn
Note
6
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/01/12
汪凤声
王文邦
王 平
BLS70-2-08H38.5 LF
Speaker
DRG NO: BS/TES01.1100A
2 1
A
Page:03 of 07
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BLS70-2-08H38.5 LF
2.Drawing
Unit:mm
70±0.5
G
F
E
6
Ø
G
F
70±0.5
E
D
D
Ø66±0.5
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
Ø50±0.5
C
38±0.5
B
B
2.8
Date:
A
A
Rev.
2012/01/12
Date
汪凤声
Drawn
Note
6
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/01/12
汪凤声
王文邦
王 平
BLS70-2-08H38.5 LF
Speaker
DRG NO:BS/TES01.1100A
2 1
A
Page:04 of 07
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BLS70-2-08H38.5 LF
3. Reliability Test
3.1 Load test
Input Power 5W
G
Duration use white noise EIA filter for 96hours
3.2 Heat test
Temperature +70±3°C
Relative humidity 20...50%RH
F
Duration 96hrs
3.3 Cold test
Temperature -10±3°C
Duration 96hrs
E
3.4 Temperature change( shock )
Low Temperature -10± 3°C
High Temperature +85± 3°C
Dwell time each temperature 30min
Transfer time from lower to upper temperature <10s
D
Cycles 100
G
F
E
D
and shall not be used in whole or in part without its written content
3.5 Moisture Test
Tempeature +10± 2°C
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
Humidity 92± 2%(RH)
Duration 96hrs
C
C
3.6 Drop test
Surface(floor) concrete or steel
Height 75cm
Direction X,Y&Z 3axes
B
B
After the test,all electronic and acoustic characteristic should be satisfied
with the specification. SPL: Deviation is of ±2dB of initial value.
Date:
A
A
Rev.
2012/01/12
Date
6
汪凤声
Drawn
Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/01/12
汪凤声
王文邦
王 平
BLS70-2-08H38.5 LF
Speaker
DRG NO:BS/TES01.1100A
2 1
A
Page:05 of 07
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BLS70-2-08H38.5 LF
4. Packing
G
F
E
G
F
E
TBD
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
Date:
A
A
Rev.
2012/01/12
Date
汪凤声
Drawn
Note
6
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/01/12
汪凤声
王文邦
王 平
BLS70-2-08H38.5 LF
Speaker
DRG NO:BS/TES01.1100A
2 1
Page:06 of 07
D
C
B
A
Page 7
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BLS70-2-08H38.5 LF
5. History change record
version
No.
G
F
E
A
Before
Change Items
After
Date
12/01/12
汪凤声
ApprovedDrawn
王 平
G
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
Date:
A
A
Rev.
2012/01/12
Date
汪凤声
Drawn
Note
6
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/01/12
汪凤声
王文邦
王 平
BLS70-2-08H38.5 LF
Speaker
DRG NO:BS/TES01.1100A
2 1
Page:07 of 07
D
C
B
A
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