BeStar FT-27T-4.3A1 User Manual

SPECIFICATION

PiezoCeramic Element

Customer
Customer P/N

BeStar Model Name
Issue No. BS/TEY01.116B

Issue Date

Approval:

1.Electrical characteristics

2.Dimension

3.Characteristics

4.Measuring Method

5.Reliability Test

6.History Change Record

Drawn by

Checked by

Approved by

FT-27T-4.3A1

06/08/24

Customer approved

杨红烨

姜文金 郭 敏

BESTAR ELECTRONICS INDUSTRY CO.,LTD

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]

2346 5 1

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1

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FT-27T-4.3A1

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1.Electrical characteristics

No. Item Specification

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F

E

1. Resonant Frequency 4.3 0.5K Hz

2. Resonant Impedance 300max ohm

3. Capacitance 20± 30%nF at 120Hz

4. Insulation Resistance Min. 200M Ω

5. Input Voltage Max. 30 Vp-p

6. Operating Temperature -20...+60°C

7. Storage Temperature -30...+70°C

8. Pull test of silver layer(vertical) 2.5N min

9. Pull test of silver layer (horizontal) 20N min

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F

E

10. Metallic supporter Brass

2.Dimension

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

Ø21±0.4
Ø27±0.1

B

Brass

Ceramic

0.25±0.01

0.45±0.05

D

C

B

Date:

Drawn by:

06/08/24

B

A

Rev.

Date

杨红烨

Drawn

Note

BESTAR ELECTRONICS INDUSTRY CO.,LTD

Checked by:

Approved by:

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

06/08/24

杨红烨

姜文金
郭 敏

FT-27T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.116B

A

Page:1 of 4

FT-27T-4.3A1

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3.Characteristics:

3.1 Solderability
280 10 CTemperaure of Merited Solder,2 0.5sec Duration of Dipping.

3.2 Lead pull off test

156 4 3 2

H

G

wire should not come out before this .The ceramic can be either glued on a surface of can be held in
hand.(Fig.3.2)
b) Wire to be soldered on ceramic at the edage&should be pulled up at 90° The element should be hold on
bottom and wire should be pulled up .It should withstand at least for 2.5N force(Fig.3.1)

a) Wire to be soldered on ceramic at the edge. It should withstand minimum 20N force applied in 180° .The

F

Fig.3.1 Direction of Lead Wire

4.Measuring Method

E

D

4.1.Resonant Frequency/ Resonant Impedance:
Piezoelectric disc shall be clamped at a node or edge point ,figure to be free from any mechanical

stresses,and measure its resonant frequency and resonant impedance by using vector impedance analyzer

or equivalent.
Input frequency shall be swept within 1 to 5 kHz, where the resonant frequency is defined and the frequency
where the impedance shows minimum value, this impedance shall be the resonant impedance.

90°

Lead Wire

Lead Wire

Fig.3.2 Direction of Lead Wire

G

F

E

D

4.2.Capacitance:

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.

A electrostatic capacity capacitance shall be measured at 120Hz by using LCR meter, such as DF2812A

LCR number bridge or equivalent. The part shall be clamped in the same way as the measurement of
resonant frequency / resonant impedance mentioned in section 4.1.

C

4.3.Insulation Resistance:

C

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

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

B

B

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

Date:
Drawn by:

06/08/24

B

A

Rev.

杨红烨

Drawn Date

Note

BESTAR ELECTRONICS INDUSTRY CO.,LTD

56

Checked by:

Approved by:

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

4 3

06/08/24

杨红烨

姜文金
郭 敏

FT-27T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.116B

A

Page:2 of 4

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FT-27T-4.3A1

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5.Reliability Test:

5.1.High Temperature Test
Temperture +70 C
Duration 180hrs

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5.2.Low Temperature Test
Temperature -30 C
Duration 180hrs

5.3.Temperature Cycle Test

-20 C
30min

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+20 C

15min

+60 C

+20 C

15min30min

Cycles 5

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

5.4.Humidity
Temperature 40 2 C
Relative Humidity 90~95R.H.

E

Duration 240hrs

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F

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5.5.Vibration Test

Vibration Frequency 10~55Hz
Amplitude 1.52mm
Duration 2 hrs each of 3 axis

5.6.Shock

D

Piezoelectric disc shall be measured after applying shock at (980m/s2) for each three mutually

D

perpendicular (XYZ) directions by half sine waves,3 times eac h

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

C

B

Date:
Drawn by:

06/08/24

B

A

Rev.

杨红烨

Drawn Date

Note

BESTAR ELECTRONICS INDUSTRY CO.,LTD

56

Checked by:
Approved by:

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

4 3

06/08/24

杨红烨

姜文金
郭 敏

FT-27T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.116B

A

Page: 3 of 4

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FT-27T-4.3A1

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6.History change record

2 1

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version
No.

A

B

F

E

without insulation resistance with insulation resistance

Before After

Change Items

Date

05/11/02
06/08/24

Drawn

周克中

杨红烨

Approved

GG

郭敏

郭敏

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:

06/08/24

B

A

Rev.

Date

杨红烨

Drawn

Note

BESTAR ELECTRONICS INDUSTRY CO.,LTD

Checked by:
Approved by:

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

06/08/24

杨红烨

姜文金
郭 敏

FT-27T-4.3A1

Piezo Ceramic Element

DRG NO: BS/TEY01.116B

Page: 4 of 4

D

C

B

A