BeStar FT-20T-4.3A1 User Manual

SPECIFICATION
Piezo Ceramic Element

Customer

Customer P/N

BeStar Model Name
Issue No. BS/TEY01.256B

Issue Date

Approval:

1.Electrical characteristics

2.Dimension

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

4.Notice

5.Measuring Method

6.Reliability Test

7.Packing

8.History change record

Drawn by

Checked by

Approved by

FT-20T-4.3A1

08/06/16

Customer approved

赵 峥

李红元

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]

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5

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FT-20T-4.3A1

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1.Electrical characteristics

3 2 1

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G

F

No.

Item

Specification

Condition

G

F

The resonant frequency is

1.

Resonant Frequency

4.3± 0.5KHz

suitable only for piezo element
without wire
The resonant Impedance is

2.

E

3.

Resonant Impedance

Static Capacitance

680ohm max

CM-G:30± 30%nF

suitable only for piezo element
without wire

at 120Hz/1V

E

The Insulation Resistance

4.

Insulation Resistance

Min.200M ohm

is suitable only for piezo
element without wire

D

5.

Operating Voltage 3 - 30 Vp-p

D

"Pull off"force between

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

6.

silver and ceramic layer

20N min

See page 3 &3.2a

(horizontally)

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

7.

C

8.

9.

10.

B

08/06/16

B

A

Rev.

Date

"Pull off"force between

silver and ceramic layer

2.5N min

(vertically)

-30...+60°COperating Temperature

Storage Temperature -20...+70°C
Metallic supporter

赵 峥

Drawn

Note

Brass

Date:
Drawn by:

Checked by:

Approved by:

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

08/06/16

赵 峥

李红元

张秀琴

See page 3&3.2b

FT-20T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.256B

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B

A

Page:1 of 7

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FT-20T-4.3A1

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2.Dimension

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G

Ø15±0.5

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E

0.15±0.02

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F

E

piezoceramics

Brass

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.

C

B

B

A

Rev.

Date Drawn

6

赵 峥

5

*Ø20±0.5

Note

Date:
Drawn by:

Checked by:08/06/16

Approved by:

4

08/06/16

赵 峥

李红元

张秀琴

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

3

DRG NO: BS/TEY01.256B

0.27±0.05

FT-20T-4.3A1

Piezo Ceramic Element

Page:2 of 7

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B

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FT-20T-4.3A1

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

Note:

3.1 Lead wire (UL 1571 #24AWG)to be soldered on the silver by handsoldering
at 300 10°C duration 2 0.5 sec

G

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

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

1

H

G

Lead Wire

90

F

FIG.1 Direction of Lead Wire

E

(horizontally)

FIG.2 Direction of Lead Wire

(vertically)

F

E

4. Notice

4.1 The products mustn't be washed

4.2 Storage Condition
The products should be stored in the room ,where the temperature/humidity is stable.

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

And avoid such places where there are large temperature changes. Please store the
products at the following conditions:
Temperature: -10 to + 40°C Humidity: 15 to 85% R.H.

4.3 Expire Date on Storage
Expire date (Shelf life) of the products is six months after deliveried under the conditions of a
sealed and an unopened package. Please use the products within six months after deliveried.
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 confirm solderability and
characteristics for the products regularly.

4.4 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 character­istics may be reduced at quality, and/or be degraded in the solderability due to storage under
the poor condition.
(3) Please do not drop the products to avoid cracking of ceramic element.

D

C

B

Date:

Drawn by:

08/06/16

B

A

Rev.

Date

6

赵 峥

Drawn

Checked by:

Note

5

Approved by:

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

4

08/06/16

赵 峥

李红元

张秀琴

3 2

FT-20T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.256B

Page:3 of 7

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B

A

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FT-20T-4.3A1

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5.Measuring Method

5.1.Resonant Frequency/Resonant Impedance
piezoelectric diaphragm shall be clamped at a node point as shown in following figure to be free from any
mechanical stress,and measured its resonant frequency and resonant impedance by using

2 1

H

G

F

E

D

YW2788 synthesis parameter test apparatus or equivalent

5.2.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 .

G

F

E

D

5.3.Insulation Resistance:

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

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

C

5.4.Measureing Condition:

B

Parts shall be measured under a condition(Temperature:+5°C to +35°C,Humidity:45 to 85% R.H.)

B

unless the standard condition(Temperature:+25± 3°C,Humidity:60± 10%R.H.)is regulated to
measure.

Date:

Drawn by:

08/06/16

B

A

Rev.

Date

6

赵 峥

Drawn

Checked by:

Note

5

Approved by:

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

4

08/06/16

赵 峥

李红元

张秀琴

3

FT-20T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.256B

2 1

A

Page:4 of 7

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FT-20T-4.3A1

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6. Reliability test

6.1 Life test at high temperature
Temperature +80°C
Duration 96hrs

6.2 Life test at low temperature

G

F

Temperature -30°C
Duration 96hrs

6.3 Temperature cycle test
Cycles

6.4 Humidity cycle test
Cycles

5 4 3

+80℃

-30℃

25℃90-95% RH

+20℃

30min15min30min

65℃ 90-95% RH

+20℃

15min

12h1h 1h10h

2 1

H

G

F

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

E

6.5 Vibration Test

E

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

6.6 Drop test
Height 100cm

D

(to 10mm thickness woodenboard)

D

Direction 3(x.y&z)

6.7 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.

6.8 Accelerated Life Test (ALT)
Thermal Cycling :
Thermal Cycling consists of temperature ramping components for 30 minutes in the

C

Testing oven from -20°C to 70°C. The components are then exposed for 1 hour at

C

The extremes and the cycle is repeated for a total of 15 cycles..
Thermal Soak:
Thermal soak consists of exposing a powered unit to 70°C and 85% relative humidity
for 45 days.

Notice: All specifications must be satisfied in this condition.

B

Date:
Drawn by:

08/06/16

B

A

Rev.

Date

6

赵 峥

Drawn

Checked by:

Note

5

Approved by:

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

4 3

08/06/16

赵 峥

李红元

张秀琴

FT-20T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.25B

2

Page:5 of 7

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B

A

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FT-20T-4.3A1

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7.Packing

7.1Packing Drawing

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products

foam cover

the sizes same
with the tray

G

100PCS

foam tray

F

E

label info

FT-20T-4.3A1

Datecode: XX.XX

D

Quantity:5000pcs

F

E

D

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

7.2 packing quantity

7.2-a 1000pcs per foam tray

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

7.2-b 5 foam trays per carton

7.2-c Total 5000pcs per carton.

7.2-d Transducers shall be packaged in suitable low-sulfur.

C

air tight stacking containers to prevent oxidation of the

C

metal disc. corrosion of the silver electrode. And damage
during shipment and storage. Cartons shall be stackable
to four feet high without damage to transducers.

B

Date:
Drawn by:

08/06/16

B

A

Rev.

Date

6

赵 峥

Drawn

Note

5

Checked by:

Approved by:

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

4

08/06/16

赵 峥

李红元

张秀琴

3

FT-20T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.256B

2

Page:6 of 7

1

B

A

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8. History change record

2 1

H

version

G

No.

Before After

A

B

F

E

Frequency: 3.4±0.4

Change Items

Frequency: 4.3±0.5

Date

08/06/13

08/06/16 张秀琴

Drawn

赵 峥

赵 峥

Approved

张秀琴

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:

08/06/16

B

A

Rev.

Date Drawn

赵 峥

Note

Checked by:
Approved by:

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

08/06/16

赵 峥

李红元

张秀琴

FT-20T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.256B

Page:7 of 7

D

C

B

A