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SPECIFICATION
FOR DYNAMIC SPEAKER
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08TOTAL PAGE
www.be-star.com
RoHS
Preliminary Specification For The Acoustic
Characteristics of Dynamic Speaker
Customer
Date
Page
Approval：
1.Description
2.Characteristics
3.Drawing
4.Reliability Test
5.Reflow Condition
6.Tape on Reel Packing
7.History Change Record
01 Feb. 2012
01 of 08
Model Name
Product No.Customer P/N
Issue No.
Issue Date
SMS2020-08H4.5 LF
138707
BS/TES01.990A
2012/02/01
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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SMS2020-08H4.5 LF
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G
1.Description
1.1 Upper sound port
1.2 Reflowable(Conforms to EIAJ ED-4702)
1.3 Flat frequency response with a greater sound volume
1.4 Excellent durability in severe environment(storage temperature:
-40°C to +105°C)
2.Characteristics
2.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Dimension 20 x 20 x 4.5 (square)
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G
F
F
3. Rated Input Power 0.5W(2.0Vrms)
4. Max Input Power 1.0W(2.83Vrms)
5. Resonance Frequency 850Hz ±20%
6. S.P.L 93±3dB/0.5W/0.1m at 0.8,1.0,1.5,2.0KHz average
2. AC Impedance 8Ω±20%
E
7. THD 800Hz≤30%,800-1.5KHz slope from 10%,
E
1.5K-8KHz≤10%
8. Buzzes & Rattles Must be normal at sine wave 2.0Vrms
9. Polarity Positive voltage to (+),Diaphragm moves forward
D
10. Operating Temperature -40~+ 85°C
D
11. Storage Temperature -40~+ 105°C
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.
12. Weight ~3.0g
2.2 Test Method
Power Amplifier
C
C
10cm
0.5W(2.0Vrms)
B
Speaker
Mic
Audio
B
Analyser
Anechoic chamber
Date:
A
A
Rev.
2012/02/01
Date
6
王文邦
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Note
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/02/01
王文邦
李红元
郭 敏
SMS2020-08H4.5 LF
Speaker
DRG NO: BS/TES01.990A
2 1
A
Page:02 of 08
Page 3
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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
110
G
100
90
F
80
Sound Pressure Level (dB)
min SPL
12
G
F
E
70
100
1K 2K
E
5K 10K 20K
Frequency (Hz)
2.4 Total Harmonic Distortion (only for reference)
D
and shall not be used in whole or in part without its written content
40
D
30
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
(%)
20
C
10
B
0
100
1K 2K 5K 10K 20K
B
Frequency (Hz)
Date:
A
A
Rev.
2012/02/01
Date
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2012/02/01
王文邦
李红元
郭 敏
SMS2020-08H4.5 LF
Speaker
DRG NO: BS/TES01.990A
2 1
A
Page:03 of 08
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3. Drawing
Unit:mm
Tolerance:±0.2
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G
F
E
(sound port)
Lead(-)
(sound port)
Dummy lead
Lead(+)
G
F
E
4. Reliability Test
D
4.1 Load Test
Power (Nom) 0.5W(sine wave)
and shall not be used in whole or in part without its written content
Duration 120hrs
D
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
4.2 High Temperature Test
Temperature +105±3°C
Duration 120hrs
C
4.3 Low Temperature Test
C
Temperature -40±3°C
Duration 120hrs
4.4 Temperature Cycle Test
Temperature -40°C/+85°C
Temperature Change 1±2/min
B
Duration at +85°C 2h(each cycle)
Duration at -40°C 2h(each cycle)
B
Duration for one cycle 8h
Cycle 10
Date:
A
A
Rev.
2012/02/01
Date
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Checked by:
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www.be-star.com wu@be-star.com
45 3
2012/02/01
王文邦
李红元
郭 敏
SMS2020-08H4.5 LF
Speaker
DRG NO: BS/TES01.990A
2 1
A
Page:04 of 08
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4.5 Drop Test
Height 1.0m
Drop face Free drop on concrete floor
Times 3 (X,Y,Z direction 1 time each,
total 3 times)
G
F
Notice:
1.All these tests above should be measured after leaving normal temperature
for 2hrs.
2.After the test the part shall meet specifications without any degradation in
appearance and performance except SPL.SPL difference at 0.8-2kHz shall
be within ± 3dB from initial value after test.
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G
F
5.Reflow Condition
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
5.1 reflow solding
260°C
235°C
215°C
150°C
Temperature (°C)
60-80
Peak Temp.:260°C Max
120-150 30-40 50
Time (s)
E
D
C
Preheating: 215°C for 60-150 seconds
B
A
A
2012/02/01
Rev.
Date
6
Soldering Temperature: 235°C for 20-40 seconds
Peak Soldering Temperature: 260°C max for 10 seconds
2012/02/01
王文邦
李红元
郭 敏
王文邦
Drawn
Note
Date:
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
SMS2020-08H4.5 LF
Speaker
DRG NO: BS/TES01.990A
2 1
B
A
Page:05 of 08
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6. Tape on Reel Packing
6.1 packing drawing
★Dimensions of carrier tape
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B
B--B
G
A A
F
F
B
E
The cover film peel strength force 0.1-0.7N
The cover film peel speed 300mm/min.
E
A--A
D
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.
★Dimensions of reel
Components
C
C
Leader
Cover Film
B
B
Trailer
Date:
A
A
Rev.
2012/02/01
Date
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Approved by:
www.be-star.com wu@be-star.com
45
2012/02/01
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李红元
郭 敏
3
SMS2020-08H4.5 LF
Speaker
DRG NO: BS/TES01.990A
2 1
A
Page:06 of 08
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6.2 packing quantity
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3
12
G
F
E
label about order info
G
F
E
label
BeStar
Type:
P/O:
Qty:
D
Date code:
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
6.3 packing quantity
C
6.3.1 300 pcs/reel
6.3.2 5 reel/carton
6.3.3 1500 pcs/carton in total
6.3.4 carton size 38x28x37cm
6.3.5 12 carton/tray
B
6.3.6 tray size 85x77x74cm
A
A
Rev.
2012/02/01
Date
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Date:
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Checked by:
Approved by:
www.be-star.com wu@be-star.com
2012/02/01
王文邦
李红元
45 3
郭 敏
SMS2020-08H4.5 LF
Speaker
DRG NO: BS/TES01.990A
2 1
Page:07 of 08
B
A
Page 8
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7. History Change Record
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3
12
version
No.
A
G
F
E
Before After
Change Items
Date
2012/02/01
Drawn
王文邦
Approved
郭 敏
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.
2012/02/01
Date
王文邦
Drawn
Note
6
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
45 3
2012/02/01
王文邦
李红元
郭 敏
SMS2020-08H4.5 LF
Speaker
DRG NO: BS/TES01.990A
2 1
Page:08 of 08
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C
B
A
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