BeStar BMS50-11-50H7.5 LF User Manual

SPECIFICATION
FOR MYLAR SPEAKER

Customer
Customer P/N

BeStar Model Name
Product No.
Issue No.
Issue Date

Approval:

1.Technical Terms

2.FrequencyResponse

3.Drawing

4. Reliability Test

5. Packing

6. History change record

Drawn by

Checked by

BMS50-11-50H7.5 LF

120328

BS/TES01.845A

2012/04/15

Approved by

Customer approved

汪凤声

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)

王 平

张秀琴

No.199 HuangHe West Road.New district,changzhou,

jiangsu Province,P.R.China

Tel:[phone] Fax:[phone]
Http:www.be-star.com
E-mail: [e-mail], [e-mail]

46 5 23 1

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BMS50-11-50H7.5 LF

1. Characteristic

★Electrical and Mechanical Characteristics

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No. Item Specifications

1. Rated Input 0.25W

2. Maximum Input 0.5W

3. Resonance Frequency(f0) 400 20%Hz

4. Frequency Response(Ave SPL -10dB) 220Hz...10KHz

5. Impedance(at 1 kHz) 50ohm 15%

6. Output SPL(0.1m/0.1W) 91 2dB(at400,600,800,1000,1200Hz)

7. THD(at 1000Hz,0.5W) max5%

8. Polarity Positive voltage to (+),
Diaphragm move forward

9. Buzzes & rattles Must be normal at a sine wave(3.53V)

10. Frame Material ABS

11. Operating Temperature -25...+60

12. Storage Temperature -25...+60

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2.FrequencyResponse

and shall not be used in whole or in part without its written content

110.0

This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.

100.0

C

90.0

80.0

70.0

B

60.0
100

1k

10k

Hz

20k

180.0

108.0

36.0

-36.0

-108.0

-180.0

Date:

Drawn by:

2012-04-15

A

A

Rev.

王 平

DrawnDate

Note

Checked by:
Approved by:

www.be-star.com [e-mail]

2012-04-15

王 平
王 平

张秀琴

BMS50-11-50H7.5 LF

Speaker

DRG NO: BS/TES01.845A

Page:1 of5

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BMS50-11-50H7.5 LF

3. Drawing

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0

4.5

-1

19.3

°

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Ø17±0.2

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2±0.2

<5.5

BP-6728 Glue

7.8±0.3

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:

Drawn by:

2012-04-15

A

A

REV.

Date

王 平

Drawn

Note

Checked by:

Approved by:

www.be-star.com [e-mail]

2012-04-15

王 平
王 平

张秀琴

BMS50-11-50H7.5 LF

Speaker

DRG NO: BS/TES01.845A

Page:2 of 5

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BMS50-11-50H7.5 LF

4.Reliability Test

4.1 Load Test 0.25W
Duration 96hours

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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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4.2 High temperature test
Temp. +60 2°C
Relative humidity 20...50%RH
Duration 96hrs

4.3 Low temperature test
Temp. -25 2°C
Duration 96hrs

4.4 Moisture temperature test
Temperature 40 2°C
Relative humidity 90...95%RH
Duration 96hrs

4.5 Temperature cycles
Low temperature -25 °C

High temperature +60 °C

Cycles 4

4.6 Vibration
Frequency 30±15Hz
Amplitude 1.5mm
Duration 3hours

4.7 Drop Test
Height 75cm
Direction x,y&z 3 axis
Time 6s
Dropped to 20mm thickness wooden boad contained packing

After each test of 4.2 to 4.3,4.4,speakers should be measured after 2hrs
exposed in
normal temperature.

B

After each test,All specification must be satisfied in this condition.
SPL:deviation is ±2dB of initial values

Date:
Drawn by:

2012-04-15

A

A

REV.

Date

王 平

Drawn

Checked by:

Note Approved by:

www.be-star.com [e-mail]

2012-04-15

王 平
王 平

张秀琴

BMS50-11-50H7.5 LF

Speaker

DRG NO: BS/TES01.845A

Page:3 of 5

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BMS50-11-50H7.5 LF

5. Packing

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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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Remark:
100pcs per tray,
1000pcs per carton

B

Date:
Drawn by:

2012-04-15

A

A

REV.

Date

王 平

Drawn

Checked by:

Note Approved by:

www.be-star.com [e-mail]

2012-04-15

王 平
王 平

张秀琴

carton size: 58 X 32 X 32cm.

BMS50-11-50H7.5 LF

Speaker

DRG NO: BS/TES01.845A

Page:4of 5

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ACD

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BMS50-11-50H7.5 LF

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6. History change record

4 3 2 1

version

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E

No.

A

Change Items

Before

After

Date

2012/04/15

汪凤声

ApprovedDrawn

郭敏

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

2012-04-15

王 平
王 平

张秀琴

www.be-star.com [e-mail]

BMS50-11-50H7.5 LF

Speaker

DRG NO: BS/TES01.845A

Page:5of 5

A

A

REV.

2012-04-15

王 平

DrawnDate

Note

Date:
Drawn by:

Checked by:

Approved by:

B

ACD

6 5

EFG

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BMS50-11-50H7.5 LF

H

6. History change record

4 3 2 1

version

G

F

E

No.

A

Change Items

Before

After

Date

2012/04/15

汪凤声

ApprovedDrawn

张秀琴

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

2012-04-15

王 平
王 平

张秀琴

www.be-star.com [e-mail]

BMS50-11-50H7.5 LF

Speaker

DRG NO: BS/TES01.845A

Page:5of 5

A

A

REV.

2012-04-15

王 平

DrawnDate

Note

Date:
Drawn by:

Checked by:

Approved by: