Page 1
SPECIFICATION
FOR DYNAMIC SPEAKER
Customer
Customer P/N
BeStar Model Name
Product No.
BMS28-12B-16H05W220J LF
131431
Issue No. BS/TES01.854B
Issue Date
07/12/05
Approval:
1.Characteristics
ypical Frequency Response Curve
2.T
3.Dimension
4.Reliability Test
5.Pa
cking
6.History change
Drawn by
顾海萍
record
Checked by
莫丽丽
Approved by
张秀琴
Custom er approved
For conform to the Europ ean Union Directive on the Restriction of Hazar dous 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)
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
Http:www.be-star.com
E-mail: wu@be-star.co m, in fo@be-star.com
Page 2
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6
54
3
2 1
H
BMS28-12B-16H05W220J LF
H
3. Dimension
G
Red(+)
G
≈
X
S-2850-220
F
Black( - )
备注:①X指时间段（即批次），一箱印一个批次。
YEAR
A、B、C
MONTH
即：
②
E
、......
M
DAY
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.
CONTACTOR:5058-8000 MOLEX
HOUSING:51021-0200 MOLEX
D
≈
C
UL1571 AWG28#
diaphragm
B
Unit:mm
Date:
B
07/12/05
A
Rev.
07/10/08
Date Drawn
A
BESTAR ELECTRONICS INDUSTRY CO.,LTD
65 4
顾海萍
顾海萍
Note
Drawn by:
Checked by:
Approved by:
www.be-star.c om wu@be-star.com
07/12/05
顾海萍
莫丽丽
张秀琴
3
BMS28-12B-16H05W220J LF
Speaker
DRG NO: BS/TES 01.854B
2
Page:2 of 6
1
C
B
A
Page 4
6
54
3
2 1
H
BMS28-12B-16H05W220J LF
H
4.Bill of Material
G
9
8
F
6
3
7
E
2
5
G
10
4
1
F
E
No Parts Name Material
1 Frame SPCC
D
2 Magnet NdFeB
3 Plate SPCC
and shall not be used in whole or in part without its writ ten content
4 Voice coil Cu
5 Diaphragm PET
This print and informa tion there in are proprietary to Bestar Electronics I ndustry Co. , Ltd.
6 Terminal/PCB Epoxy
7 Cable PVC&Cu
C
8 Housing ABS&Cu
9 Gesket ABS
10 Mesh Cloth
B
Date:
07/12/05
B
07/10/08
A
A
Rev.
Date Drawn
BESTAR ELECTRONICS INDUSTRY CO.,LTD
顾海萍
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Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
65 4
07/12/05
顾海萍
莫丽丽
张秀琴
3
OTY
1PCS
1PCS
1PCS
1PCS
1PCS
1PCS
1PCS
1PCS
1PCS
1PCS
BMS28-12B-16H05W220J LF
Speaker
DRG NO: BS/TES01.854B
2
Page:3 of 6
1
D
C
B
A
Page 5
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54
3
21
H
BMS28-12B-16H05W220J LF
H
5. Reliability Test
G
F
E
5.1 Load Test
Power 0.4W
Duration 96hrs
5.2 High Temperature Tes t
Temperature
Duration
+60±3℃
96hrs
5.3 Low Temperature Te st
Temperature -20±3
℃
Duration 96hrs
5.4 Damp Heat
Temperature 40±3
Relative Humidity
Duration
5.5 Temperature Cycle Test
90%-95%RH
96hrs
℃
Cycle 4
G
F
E
+60
-20
D
and shall not be used in whole or in part without its written content
5.6 Drop Test
0.5hrs0.5hrs
-20
0.5hrs
+60
D
Height 100cm (in state of packing)
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
Times 10 (Drop onto hardwood board)
C
All these tests above should be measured after leaving normal temperature for 1hrs.
sensitivity difference at 1kHz shall be within ±3dB from initial value after test.
B
Date:
B
07/12/05
A
A
Rev.
07/10/08
Date
BESTAR ELECTRON IC S IN DUSTRY CO.,LTD
6
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Drawn
Drawn by:
Checked by:
Note
5
Approved by:
www.be-star.com wu@be-star.com
4
07/12/05
顾海萍
莫丽丽
张秀琴
3
BMS28-12B-16H0 5W 220J LF
Speaker
DRG NO: BS/TES01.854B
Page:4 of 6
21
B
A
Page 6
65 4 3
2
1
H
BMS28-12B-16H05W220J LF
6. Packing
G
F
E
H
G
F
E
D
and shall not be used in wh ole or in part without its written c ontent
This print and information there in are proprietary to Bes tar Electronics Industry Co., Ltd.
C
Remark:
D
C
40 pcs per tray
B
15 trays for unit, 2 units per carton
B
Total 1200pcs per carton
Size: 59.5×39×21(cm)
Date:
B
07/12/05
A
A
07/10/08
Rev.
BESTAR ELECTRONICS INDUSTRY CO.,LTD
65
顾海萍
顾海萍
Drawn Date
Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
43
07/12/05
顾海萍
莫丽丽
张秀琴
BMS28-12B-16H05W220J LF
Speaker
DRG NO: B S/TES01.854B
2
Page:5 of 6
1
A
Page 7
65 4 3
BMS28-12B-16H05W220J LF
H
7. History change record
2
1
H
version
No.
G
F
E
A
No marking and 50 pcs per tray
B
Before
Change Items
After
Add up marking and
40 pcs per tray
Date
07/10/08
07/12/05
Drawn
顾海萍
顾海萍
Approved
张秀琴
张秀琴
G
F
E
D
and shall not be used in whole or in part with o u t it s written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
B
Date:
B
07/12/05
A
A
Rev.
07/10/08
Date
BESTAR ELECTRONICS INDUSTRY CO.,LTD
65
顾海萍
顾海萍
Drawn
Note
Drawn by:
Checked by:
Approved by :
www.be-star.com wu@be-star.com
43
07/12/05
顾海萍
莫丽丽
张秀琴
BMS28-12B-16H05W220J LF
Speaker
DRG NO: BS/TES01.854B
2
Page:6 of 6
1
D
C
B
A
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