BeStar FT-27T-4.0B1 User Manual

博 士 達

For Piezo Ceramic Element

TOTAL PAGE

SPECIFICATION

07

www.be-star.com

Customer

Customer P/N
Date

18 May .10

Page

Approval：

1.Electrical characteristics

2.Dimension

3."Pull off"force between silver and ceramic layer

4.Measuring Method

5.Reliability Test

6.Packing

7.History change record

01 of 07

Model Name

Product No.
Issue No.
Issue Date

FT-27T-4.0B1

BS/TEY01.343A

10/05/18

Drawn by

邱俊 赵峥 李红元

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: [phone] Fax: [phone]

E-mail:[e-mail] http://www.be-star.com

6

FT-27T-4.0B1

H

1.Electrical characteristics

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G

No. Item

F

E

D

1.

2.

3.

4.

5.

Resonant Frequency

Resonant Impedance

Static Capacitance

Insulation Resistance

Operating Voltage

"Pull off"force between

6.

silver and ceramic layer

Specification Condition

4.0±0.3KHz

500ohm max

CM-G:23±15%nF
CB-G:2.9±15%nF

at 120Hz/1V

Min.200M ohm

30Vp-p(at least)

20N min

G

F

E

D

(horizontally)

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

"Pull off"force between

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

7.

silver and ceramic layer

2.5N min

(vertically)

C

8.

9.

10.

B

A

Rev.

Date

6

Operating Temperature
Storage Temperature

Metallic supporter

Drawn

Note

-40...+85°C

-40...+85°C
Brass

Date:
Drawn by:

Checked by:
Approved by:

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

45 3

10/05/18

邱 俊
赵 峥

李红元

FT-27T-4.0B1

Piezo Ceramic Element

DRG NO: BS/TEY01.343A

2 1

C

B

A

Page:02 of 07

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FT-27T-4.0B1

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2.Dimension

Ø27±0.1

34 2

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H

G

F

Green insulating layer

E

3."Pull off"force between silver and ceramic layer

Note:

D

3.1 Lead wire (UL 1571 AWG#28)to be soldered on the silver by handsoldering
at 300 10°C duration 2 0.5 sec

5.6±0.1

Ø20.0±0.5

Ø18.4±0.2

5.6±0.1

2±0.1

2±0.1

0.25±0.03

0.46±0.05

G

F

E

D

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

3.2.a Pull force by houizontal direction is ≥20N

3.2.b Pull force by vertical direction is ≥2.5N

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

C

Lead Wire

FIG.1 Direction of Lead Wire

B

A

Rev.

(horizontally)

DrawnDate

6 5

Note

Date:
Drawn by:
Checked by:
Approved by:

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FIG.2 Direction of Lead Wire

(vertically)

10/05/18

邱 俊
赵 峥

李红元

34 2

90

Piezo Ceramic Element

DRG NO: BS/TEY01.343A

Lead Wire

C

B

FT-27T-4.0B1

A

Page:03 of 07

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FT-27T-4.0B1

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4.Measuring Method

4.1.Resonant Frequency/Resonant Impedance
piezoelectric diaphragm shall be clamped at a node point as shown in following figure to be free from any

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G

mechanical stress,and measured its resonant frequency and resonant impedance by using

G

YW2788 synthesis parameter test apparatus or equivalent

F

F

4.2.Capacitance:
An electrostatic capacity capacitance shall be measured at 120Hz by using LCR meter, such as DF2812A
LCR numerical bridge or equivalent.the part shall be clamped at the node .

E

D

4.3.Insulation Resistance:

E

D

An insulation resistance shall be measured by using an insulation resistance meter,suach as DF2863

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

insulation resistance meter.

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

C

B

Date:
Drawn by:

A

Rev.

Date Drawn

Note

6 5

Checked by:
Approved by:

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

4 3

10/05/18

邱 俊
赵 峥

李红元

FT-27T-4.0B1

Piezo Ceramic Element

DRG NO: BS/TEY01.343A

2 1

Page:04 of 07

C

B

A

FT-27T-4.0B1

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5. Reliability test

5.1 Life test at high temperature
Temperature +85°C
Duration 240hrs

5.2 Life test at low temperature

G

Temperature -40°C
Duration 240hrs

5.3 Temperature cycle test
Cycles 5

56 4 3 2

+85℃

-40℃

30min 15min

+20℃

30min

+20℃

15min

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G

F

5.4 Humidity cycle test
Cycles 5

65℃ 90-95% RH

25℃90-95% RH

10h

12h1h 1h

F

All these tests above should be measured after leaving normal temperature for 2hrs.

E

E

5.5 Vibration Test
Vibration Frequency 10~55Hz
Amplitude 1.53mm
Direction 3(x.y&z)
Duration 2hrs each direction (total 6 hrs)

5.6 Drop test

D

Height 100cm
(to 10mm thickness woodenboard)

D

Direction 3(x.y&z)

5.7 Solderability Test

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

Soldering Temperature 255 C
Duration 3 sec

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

C

Notice: All specifications must be satisfied in this condition.

C

B

Date:
Drawn by:

A

Rev.

DrawnDate

Note

Checked by:
Approved by:

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

56 4

10/05/18

邱 俊
赵 峥

李红元

3 2

FT-27T-4.0B1

Piezo Ceramic Element

DRG NO: BS/TEY01.343A

Page:05 of 07

1

B

A

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FT-27T-4.0B1

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6.Packing

6.1Packing Drawing

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G

products

foam cover

G

100PCS

foam tray

F

E

D

label info

FT-27T-4.0B1

Datecode: XX.XX

Quantity:5000pcs

F

E

D

6.2 packing quantity

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

6.2-a 1000pcs per foam tray

6.2-b 5 foam trays per carton

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

6.2-c Total 5000pcs per carton

6.2-d Carton size 31*18*31.5cm

6.2-e Transducers shall be packaged in suitable low-sulfur .

C

air tight stacking containers to prevent oxidation of the
metal disc. corrosion of the silver electrode. And damage

C

during shipment and storage. Cartons shall be stackable
to four feet high without damage to transducers.

B

Date:
Drawn by:

A

Rev.

Date

6

Drawn

5

Note

Checked by:
Approved by:

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

4

10/05/18

邱 俊
赵 峥

李红元

3

FT-27T-4.0B1

Piezo Ceramic Element

DRG NO: BS/TEY01.343A

2 1

Page:06 of 07

B

A

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FT-27T-4.0B1

H

7. History change record

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12

H

version

G

F

E

D

No.

A

Before

Change Items

After

Date

10/05/18

Drawn Approved

邱 俊

李红元

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:
Drawn by:

A

Rev.

Date

Drawn

Note

6 5

Checked by:
Approved by:

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

4 3

10/05/18

邱 俊
赵 峥

李红元

FT-27T-4.0B1

Piezo Ceramic Element

DRG NO: BS/TEY01.343A

Page:07 of 07

12

C

B

A