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博 士 達
SPECIFICATION
FOR ELECTRO-MAGNET TRANSDUCER
06TOTAL PAGE
www.be-star.com
RoHS
Customer
Date
Page
Approval:
1.Characteristics
2.Dimension
3.Reliability Test
4.Packing
5.Notice
6.History change record
26 Sep. 09
01 of 08
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BMT0905XH4.2 LF
020404
BS/TET01.261B
09/09/26
Drawn by
魏奉玲
Checked by
Approved by
徐 波 陶红仲
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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BMT0905XH4.2 LF
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1. Characteristics
1.1Technical terms
★Electrical and Mechanical Characteristics
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Rated Voltage 5V
Operating Voltage 4...7V
a)Rated Current max.30mA
a) Sound Output at 10cm min.80dB
F
a)Resonant Frequency 2700 ±300Hz
b)Response Time max.50ms
Operating Temperature -25...+70 °C
Storage Temperature -30...+80 °C
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Housing Material PPO( Nory1 SE1-J )
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G
F
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Housing color Black
Weight 1g
a)Value applying at rated voltage (DC)
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D
b)Value applying min operating DC voltage
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.
1.2 Test method:
1.2 Standard text Fixture
C
B
1.2.2.Standard text Fixture
No reaction in space with in 400mm in all direction
Sounder
100mm
400mm
Standard Conditions
Temperature: 17~25℃
Relative Humidity: 45~85 %(RH)
Air Pressure: 860~1060hPa
C
B
A
B
A
REV.
09/09/26
04/10/26
Date
魏奉玲
胡海青
Drawn
RohS
Note
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6
5
Date:
Drawn by:
Checked by:
Approved by:
4
09/09/26
魏奉玲
徐 波
陶红仲
www.be-star.com wu@be-star.com
3
BMT0905XH4.2 LF
Transducer
DRG NO: BS/TET01.261B
2 1
A
Page:02 of 06
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BMT0905XH4.2 LF
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2.Dimension
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123456
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G
G
+
F
2-Ø0.6±0.05
E
5.5±0.5
3.5±0.5
4.2
D
Ø9.0
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
B 魏奉玲
09/09/26
A 胡海青
A
REV.
04/10/26
5.0
Date:
RohS
DrawnDate
Note
BESTAR ELECTRONICS INDUSTRY CO.,LTD
5
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4
09/09/26
魏奉玲
徐 波
陶红仲
Unit: mm Tolerance:±0.3
BMT0905XH4.2 LF
Transducer
DRG NO: BS/TET01.261B
Page:03 of 06
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B
A
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BMT0905XH4.2 LF
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3. Reliability test
3.1 high temperature test
Temperature +80 C
G
F
Duration 96hrs
3.2 low temperature test
Temperature -30 C
Duration 96hrs
3.3 life test in normal temperature
Power supply rated voltage
Duration 1000hrs
3.4 temperature cycle test
Cycles 5
-30 C
+20 C
15min30min
+80 C
30min
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G
F
+20 C
15min
E
D
cycles 5
12h
RH
1h
25 C 90-95% RH
10h
65 C90-95%
1h
all these tests above should be measured after leaving normal temperature for 2hrs.
E
D
3.6 Drop test
3.5 Humidity cycle test
and shall not be used in whole or in part without its written content
Height 70cm
(to 10mm thickness woodenboard)
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
Direction 3
3.7 Solderability test
C
Solderability temperature 255 C±5 C
Heat applying time 3sec±0.5sec
C
Notice: After the test the part shall meet specifications without
any degrance and performance except S.P.L, S.P.L shall be 78dB more .
B
B 魏奉玲
09/09/26
A
A
REV.
04/10/26
Date
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6
胡海青
Drawn
B
Date:
RohS
Note
5
Drawn by:
Checked by:
Approved by:
4
09/09/26
魏奉玲
徐 波
陶红仲
www.be-star.com wu@be-star.com
3 12
BMT0905XH4.2 LF
Transducer
DRG NO: BS/TET01.261B
A
Page:04 of 06
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BMT0905XH4.2 LF
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1234
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G
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1)100pcs/tray
2)30trays/carton
F
3)3000 pcs/carton in total
F
4)carton size 50x27x26cm
E
5.1 The products mustn't be washed
5.2 Storage Condition
The products should be stored in the room ,where the temperature/humidity is
stable. And avoid such places where there are large temperature changes.
Please store the product set the following conditions:
D
Temperature: -10 to + 40°C Humidity: 15 to 85% R.H.
5.3 Expire Date on Storage
Expire date (Shelf life) of the products is six months after delivery under the
and shall not be used in whole or in part without its written content
conditions of a sealed and an unopened package. Please use the products within
six months after delivery.
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
If you store the products for a long time (more than six months), use carefully
because the products may be degraded in the solderability and/or rusty.Please
C
confirm solderability and characteristics for the products regularly.
5.4 Notice on Product Storage
(1) Please do not store the products in a chemical atmosphere (Acids, Alkali,
Bases, Organic gas, Sulfides and so on), because the characteristics may be
reduced at quality, and/or be degraded in the solderability due to the storage in a
chemical atmosphere.
(2) Please use the products immediately after the package is opened, because the
B
characteristics may be reduced at quality, and/or be degraded in the solderability
due to storage under the poor condition.
E
D
C
B
Date:
Drawn by:
Checked by:
Approved by:
A
B
A
REV.
09/09/26
04/10/26
Date
魏奉玲
胡海青
Drawn
RohS
Note
BESTAR ELECTRONICS INDUSTRY CO.,LTD
09/09/26
魏奉玲
徐 波
陶红仲
www.be-star.com wu@be-star.com
BMT0905XH4.2 LF
Transducer
DRG NO: BS/TET01.261B
A
Page:05 of 06
Page 6
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BMT0905XH4.2 LF
H
6. History change record
4 3
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2
1
H
G
F
D
No.
Before
A
B
version
Change Items
After
RohS
Date
04/10/26
09/09/26
胡海青
魏奉玲
ApprovedDrawn
G
颜炳辉
陶红仲
F
EE
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
B
09/09/26
A 胡海青
A
REV.
04/10/26
Date Drawn
Date:
魏奉玲
RohS
Note
BESTAR ELECTRONICS INDUSTRY CO.,LTD
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
56
09/09/26
魏奉玲
徐 波
陶红仲
34
BMT0905XH4.2 LF
Transducer
DRG NO: BS/TET01.261B
C
B
A
Page:06 of 06
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