BeStar FT-50T-0.87A1W130 User Manual

SPECIFICATION

FOR PIEZO ELECTRIC BUZZER

Customer
Customer P/N
Date
Page

TOTAL PAGE

11 Mar. 09

01 of 08

08

www.be-star.com

Model Name

Product No.
Issue No.
Issue Date

FT-50T-0.87A1W130

BS/TEY01.228A

09/03/11

Approval：

1.Electrical characteristics

2.Dimension

3.Measuring Method

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

5.Notice

6.Reliability Test

7.Packing

8.History change record

Drawn by

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

FT-50T-0.87A1W130

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1.Electrical characteristics

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F

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No. Item

1.

2.

3.

4.

5.

Resonant Frequency

Resonant Impedance

Static Capacitance

Insulation Resistance

Input Voltage

"Pull off"force between

6.

silver and ceramic
layer (horizontally)

Specification Condition

The resonant frequency

0.87 ± 0.25KHz

is suitable for piezo

element with wire
The resonant Impedance

3000 ohm max

is suitable only for piezo

element without wire

C:40±30%nF

at 120Hz

The Insulation esistance

Min.200M ohm

is suitable only for piezo

element without wire

30 Vp-p(at least)

20N min

G

F

E

"Pull off"force between

D

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

7.

8.

9.

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

10.

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B

A

A

Rev.

11.

09/03/11

Date

silver and ceramic

layer (vertically)
Operating Temperature

Storage Temperature
Lead Wire

Metallic supporter

汤浩君

Drawn

56

Note

2.5N min

-20...+60°C

-30...+70°C
130×3×3

Brass

Date:
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Checked by:
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4

09/03/11

汤浩君
耿 亚

李红元

3

Yellow (+) Blue (-)

FT-50T-0.87A1W130

Piezo Ceramic Element

BDRG NO: BS/TEY01.228A

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2.Dimension

0.44±0.1

G

Ø50±0.1

0.2±0.03

Ø25±0.5

130±10

F

Yellow

Blue

3 ±1

E

G

F

E

UL1571 #24AWG

D

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

Notes:

D

1.Element shall be free from obvious contamination,deep scratches and metal deformation

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

2.Edge of solder point shall be 1.5mm minimum from edge of brass.

3.Bonding glue should not exude beyound 1.0mm of the ceramic edge

4.Tolerance of concentricity between metal disc and ceramic shall be within 1.0mm

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B

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Date:
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6

汤浩君

Drawn

Note

5

Checked by:
Approved by:

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

4

09/03/11

汤浩君
耿 亚

李红元

3

FT-50T-0.87A1W130

Piezo Ceramic Element

BDRG NO: BS/TEY01.228A

A

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3.Measuring Method

3.1.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

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G

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E

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YW2788 synthesis parameter test apparatus or equivalent

3.2.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

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.

3.3.Insulation Resistance:
An insulation resistance shall be measured by using an insulation resistance
meter,suach as DF2863 insulation resistance meter.

C

B

09/03/11

汤浩君
耿 亚

李红元

3

FT-50T-0.87A1W130

Piezo Ceramic Element

BDRG NO: BS/TEY01.228A

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Rev.

Date Drawn

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汤浩君

Note

Date:
Drawn by:
Checked by:
Approved by:

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

Note:

4.1 Lead wire (UL 1571 #24AWG)to be soldered on the silver by handsoldering

H

G

at 300 10°C duration 2 0.5 sec

G

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

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

Lead Wire

Lead Wire

F

E

(horizontally)

FIG.1 Direction of Lead Wire

FIG.2 Direction of Lead Wire

(vertically)

F

E

5. Notice

5.1 The products mustn't be washed

5.2 Storage Condition

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

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

products at the following conditions:

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 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.

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 d-

egraded 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

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Date:
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A A

Rev.

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Date

6

汤浩君

Drawn

Note

5

Checked by:
Approved by:

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

4

09/03/11

汤浩君
耿 亚

李红元

3 2 1

FT-50T-0.87A1W130

Piezo Ceramic Element

BDRG NO: BS/TEY01.228A

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6. Reliability test

6.1 Life test at high temperature
Temperature +70°C
Duration 96hrs

6.2 Life test at low temperature

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

Temperature -30°C
Duration 96hrs

6.3 Temperature cycle test
Cycles 5

-30℃

30min

+20℃

15min

+70℃

30min

+20℃

15min

6.4 Humidity cycle test
Cycles 5

65℃ 90-95% RH

25℃90-95% RH

10h 1h 1h

12h

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

6.5 Vibration Test
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
(to 10mm thickness woodenboard)
Direction 3(x.y&z)

6.7 Solderability Test
Soldering Temperature 255 C
Duration 3 sec

6.8 Accelerated Life Test (ALT)
Thermal Cycling :
Thermal Cycling consists of temperature ramping components for 30 minutes in the
Testing oven from -20°C to 70°C. The components are then exposed for 1 hour at
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.

G

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D

C

Notice: All specifications must be satisfied in this condition.

B

Date:
Drawn by:

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A

Rev.

09/03/11

Date Drawn

汤浩君

Note

56

Checked by:
Approved by:

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

4

09/03/11

汤浩君
耿 亚

李红元

3

FT-50T-0.87A1W130

Piezo Ceramic Element

BDRG NO: BS/TEY01.228A

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7.Packing

7.1Packing Drawing

G

products

foam cover

100PCS

foam tray

F

E

label info

G

F

E

D

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

7.2 packing quantity

7.2-a 600pcs 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 3000pcs per carton

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

B

A 09/03/11 汤浩君

A

Rev.

Date

6

Drawn

FT-47T-0.7A1W060

Datecode: XX.XX

Quantity:5000pcs

Date:
Drawn by:
Checked by:

Note

5

Approved by:

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

4

09/03/11

汤浩君
耿 亚

李红元

3

FT-50T-0.87A1W130

Piezo Ceramic Element

DRG NO: BS/TEY01.228A

2

Page:07 of 08

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8. History change record

2 1

H

version

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F

E

D

No.

A

Before After

Change Items

Date

09/03/11

Drawn

汤浩君

Approved

G

李红元

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:

09/03/11

A

A

Rev.

Date

6

汤浩君

Drawn

Note

5

Checked by:
Approved by:

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

4

09/03/11

汤浩君

耿 亚

李红元

3

FT-50T-0.87A1W130

Piezo Ceramic Element

BDRG NO: BS/TEY01.228A

Page:08 of 08

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