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SPECIFICATION
FOR DYNAMIC SPEAKER
07TOTAL PAGE
www.be-star.com
RoHS
Customer
Date
Page
Table of Contents:
1.Description
2.Characteristics
3.Drawing
4.Reliability Test
5.Packing
6.History Change Record
10 Dec. 05
01 of 07
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BMS1818-11-04H09-01 LF
137504
BS/TES01.1125A
05/12/10
Drawn by
Checked by
Approved by
Customer approved
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
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1.Description
1.1 Acoustic component Performance Specification
1.2 The present document specifies performance
requirements for the acoustic characteristics of speaker
2.Characteristics
2.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Dimension 18 x18 x 9.0(mm)
2. AC Impedance 4 Ω±15%(at 2KHz/1Vrms)
3. Rated Input Power 2.0W(2.83Vrms)
4. Maximum Input Power 2.5W(3.16Vrms)
5. Resonance Frequency 520Hz ± 20%
6. Frequency Response F0~20KHz
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7. S.P.L 84±3dB/0.3m/1W at 0.6,0.8,1.0,1.2KHz average
E
8. THD ≤5% (at 1.0KHz/0.1W)
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9. Buzzes & Rattles Must be normal at sine wave 2.83Vrms
10. Polarity Positive voltage to (+),Diaphragm moves forward
11. Operating Temperature -20~+ 65°C
12. Storage Temperature -30~+ 75°C
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13. Weight ~3.1g±0.3g
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
2.2 Test Method
Power Amplifier
C
30cm
1.0W(2.0Vrms)
B
Speaker
Mic
Audio
B
Analyser
Anechoic chamber
Date:
A
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05/12/10
Date
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45 3
05/12/10
王文邦
程久生
郭 敏
BMS1818-11-04H09-01 LF
Speaker
DRG NO: BS/TES01.1125A
2 1
A
Page:02 of 07
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2.3 Frequency Response Curve (only for reference)
A: Frequency Response Magn 0 dB re 20.00 μPa/V 1/12Oct
100
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90
80
F
F
70
Sound Pressure Level (dB)
E
60
100
1K 2K
5K 10K 20K
E
Frequency (Hz)
2.4 Total Harmonic Distortion (only for reference)
A: Frequency Response Magn 0 dB re 20.00 μPa/V 1/12Oct
D
D
20
and shall not be used in whole or in part without its written content
THD (%)
15
10
C
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
5
B
0
100
1K 2K 5K 10K 20K
B
Frequency (Hz)
Date:
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45 3
05/12/10
王文邦
程久生
郭 敏
BMS1818-11-04H09-01 LF
Speaker
DRG NO: BS/TES01.1125A
2 1
A
Page:03 of 07
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3. Drawing
Unit:mm
Tolerance:±0.2
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Diaphragm
★Cavity of speaker
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Unit:mm
Tolerance:±0.2
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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.
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B
A
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Rev.
05/12/10
Date
王文邦
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Speaker
Unit
Note
Date:
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Checked by:
Approved by:
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05/12/10
王文邦
程久生
45 3
郭 敏
BMS1818-11-04H09-01 LF
Speaker
DRG NO: BS/TES01.1125A
2 1
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B
A
Page:04 of 07
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4. Reliability Test
4.1 Load Test
Power (Nom) 2.0W(sine wave)
Duration 96hrs
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Temperature +75±3°C
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Duration 96hrs
4.3 Low Temperature Test
Temperature -30±3°C
Duration 96hrs
4.4 Damp Heat
4.2 High Temperature Test
F
Temperature 40±3°C
F
Relative Humidity 90%-95%RH
Duration 96hrs
4.5 Temperature Cycle Test
Cycles 4
E
T(°C)
transition time:20-30s
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+75
+25
-30
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1
1 1
t (h)
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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.
1 cycles
4.6 Drop Test
C
Height 1.0m
Drop face thick board (20mm)
C
Times 10 (three times in
each durection )
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
B
recovery period shall be 4hrs at least before performance testing.
2. After reliability test ,all samples must be meet the requirements specified
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3.Sensitivity difference at 0.6~1.2KHz shall be within ±3dB from initial value after test.
Date:
A
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Rev.
05/12/10
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王文邦
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45 3
05/12/10
王文邦
程久生
郭 敏
BMS1818-11-04H09-01 LF
Speaker
DRG NO: BS/TES01.1125A
2 1
A
Page:05 of 07
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5. Packing
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1
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E
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TBD
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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.
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B
Date:
A
A
Rev.
05/12/10
Date
6
王文邦
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Note
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Approved by:
www.be-star.com wu@be-star.com
45 3
05/12/10
王文邦
程久生
郭 敏
BMS1818-11-04H09-01 LF
Speaker
DRG NO: BS/TES01.1125A
2 1
Page:06 of 07
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6. History Change Record
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version
No.
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G
F
E
Before After
Change Items
Date
05/12/10
Drawn
王文邦
Approved
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
Date:
A
A
Rev.
05/12/10
Date
王文邦
Drawn
Note
6
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
05/12/10
王文邦
程久生
郭 敏
BMS1818-11-04H09-01 LF
Speaker
DRG NO: BS/TES01.1125A
2 1
Page:07 of 07
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