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SPECIFICATION
FOR DYNAMIC SPEAKER
Customer
Customer P/N
BeStar Model Name
Product No.
BMS30-12B-04H09 LF
138600
Issue No. BS/TES01.545B
Issue Date
08/05/09
Approval:
1.Characteristics
2.Typical Frequency Response Curve
3.Dimension
4.Reliability Test
5.Packing
6.History change record
Drawn by
Checked by
Approved by
Customer approved
张小红 莫丽丽
For conform to the European Union Directive on the Restriction of Hazardous Substances(RoHS), this type of productions forbid use all the
hazardous substances as follow:
Lead
Cadmium
Mercury
Hexavalent chromium
Polybrominated biphenyls (PBB)
Polybrominated diphenyl ethers (PBDE)
张秀琴
No.199 HuangHe West Road.New district,changzhou,
jiangsu Province,P.R.China
Tel:86-519-88222567 Fax:86-519-88222551
Http:www.be-star.com
E-mail: wu@be-star.com, info@be-star.com
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BMS30-12B-04H09 LF
1. Characteristics
G
F
E
1.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Impedance(at 2.0kHz) 4 15%Ω
2. Rated Input Power 0.5W
3. Maximum Input Power 1.0W
4. Resonance Frequency 1000 20%Hz
5. Frequency Response F0 ～6KHz
6. Output SPL 105 3dB/0.1M 0.5W at1KHz
7. Distortion（at1kHz,0.5W） ≤5%
8. Buzzes & Rattles Must be normal at sine wave 1.41V
H
G
F
E
9. Magnet NdFeB 12.5X4mm
10. Operating Temperature -20 ～+85 C
11. Storage Temperature -20 ～+85 C
D
2. Typical Frequency Response Curve
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:
08/05/09
B
06/11/28
A
A
Rev.
Date
张小红
朱成兴
Drawn
Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
08/05/09
张小红
莫丽丽
张秀琴
BMS30-12B-04H09 LF
Speaker
DRG NO: BS/TES01.545B
A
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BMS30-12B-04H09 LF
H
3. Dimension
G
F
E
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
D
C
Plastic gasket
Diaphragm
B
B
Unit:mm
Date:
08/05/09
B
A
A
Rev.
06/11/28
Date Drawn
张小红
朱成兴
Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
6 5 4
08/05/09
张小红
莫丽丽
张秀琴
DRG NO: BS/TES01.545B
3 2
BMS30-12B-04H09 LF
Speaker
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1
A
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BMS30-12B-04H09 LF
H
4. Reliability Test
4.1 Load Test
Power 0.5W
Duration 96hrs
H
G
4.2 High Temperature Test
G
Temperature +85±3℃
Duration 96hrs
4.3 Low Temperature Test
Temperature -20±3 ℃
Duration 96hrs
F
4.4 Damp Heat
F
Temperature 40±3℃
Relative Humidity 90%-95%RH
Duration 96hrs
4.5 Temperature Cycle Test
Cycle 4
E
+85
25
-20
25
E
1hrs1hrs1hrs
D
4.6 Drop Test
Height 100cm (in state of packing)
Direction X,Y,Z,3 axis
and shall not be used in whole or in part without its written content
Times 10 (to 40mm hardwood board)
D
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
4.7 Vibration Test
Vibration Frequency 10~55Hz
C
Amplitude 1.52mm
C
Duration 2hrs each of 3 axis
All these tests above should be measured after leaving normal temperature for 1hrs.
B
A
A
Rev.
sensitivity difference at 1kHz shall be within ±3dB from initial value after test.
08/05/09
张小红
莫丽丽
张秀琴
BMS30-12B-04H09 LF
DRG NO: BS/TES01.545B
08/05/09B
06/11/28
Date
张小红
朱成兴
Drawn
Note
Date:
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
Speaker
B
A
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BMS30-12B-04H09 LF
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6. History change record
1
H
version
No.
G
F
E
A
无振动实验，包装一盒100，
B
一箱1000，
Before
Change Items
有振动实验，包装一盒50，
一箱500，
After
Date
06/11/28
Drawn
朱成兴
张小红08/05/09 张秀琴
Approved
程久生
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:
08/05/09
B
06/11/28
A
A
Rev.
Date
张小红
朱成兴
Drawn
Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
08/05/09
张小红
莫丽丽
张秀琴
BMS30-12B-04H09 LF
Speaker
DRG NO: BS/TES01.545B
Page:5 of 5
D
C
B
A
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