Page 1
SPECIFICATION
FOR PIEZO ELECTRIC BUZZER
Customer
Customer P/N
Date
Page
TOTAL PAGE 06
19 Sep. 08
01 of 06
www.be-star.com
Model Name
Product No.
Issue No.
Issue Date
FT-32T-3.2A12
BS/TEA01.277A
08/09/19
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
BESTAR ELECTRONICS INDUSTRY CO.,LTD
No.199 HuangHe West Road.New district,ChangZhou,JiangSu Province,P.R.China
Tel: +86 519 88222567 Fax: +86 519 88222551
E-mail:wu@be-star.com http://www.be-star.com
Customer approved
Page 2
6 5 4 3
FT-32T-3.2A12
H
1.Electrical characteristics
2 1
H
G
No.
Item
Specification
Condition
G
The resonant frequency is
F
1.
Resonant Frequency
3.2KHz±0.3
suitable only for piezo element
F
without wire
The resonant Impedance is
2.
3.
E
Resonant Impedance
Static Capacitance
200ohm max
CM-G:150±30%nF
suitable only for piezo element
without wire
at 100Hz/1V
E
The Insulation Resistance
4.
Insulation Resistance
Min.200M ohm
is suitable only for piezo
element without wire
5.
D
6.
Operating Voltage
"Pull off"force between
silver and ceramic layer
30 Vp-p MAX
20N min
See page 4 &4.2a
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
See page 4 &4.2b
(vertically)
C
8.
Operating Temperature
9.
10.
11.
B
A
Rev.
Date
6
Lead Wire
Metallic supporter
Drawn
5
Note
-20...+70°C
-20...+80°CStorage Temperature
UL1571-AWG #28
Brass
Date:
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4 3 2 1
08/09/19
汤浩君
赵 峥
李红元
FT-32T-3.2A12
Piezo Ceramic Element
DRG NO: BS/TEY01.277A
C
B
A
Page:1 of 7
Page 3
6 5 4 3
FT-32T-3.2A12
H
2.Dimension
G
Ø3.2
34.98±0.3
F
+0.05
Ø3
-0.00
+0.2
-0.0
Ø31±0.2
+0.02
Ø31.7
-0.00
110°
2 1
H
G
F
R1
E
D
0.1±0.05
E
D
0.6±0.1
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.
Notes:
C
1.Element shall be free from obvious contamination,deep scratches and metal
C
deformation
2.Tolerance of concentricity between metal disc and ceramic shall be within 0.5mm
B
B
Date:
Drawn by:
A
Rev.
Date Drawn
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
08/09/19
汤浩君
赵 峥
李红元
FT-32T-3.2A12
Piezo Ceramic Element
DRG NO: BS/TEY01.277A
A
Page:2 of 7
6 5 4 3 2 1
Page 4
6 5 4
FT-32T-3.2A12
H
4."Pull off"force between silver and ceramic layer
Note:
4.1 Lead wire (UL 1571 AWG#28)to be soldered on the silver by handsoldering
3 2
1
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)
90
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
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 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:
A
Rev.
Date
Drawn
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
08/09/19
汤浩君
赵 峥
李红元
FT-32T-3.2A12
Piezo Ceramic Element
DRG NO: BS/TEY01.277A
Page:4 of 7
B
A
6 5 4 3 2 1
Page 5
6 5 4
FT-32T-3.2A12
H
6. Reliability test
6.1 Life test at high temperature
Temperature +80°C
Duration 96hrs
6.2 Life test at low temperature
G
Temperature -30°C
Duration 96hrs
6.3 Temperature cycle test
Cycles 5
-30℃
30min
+20℃
15min
+80℃
30min
+20℃
15min
3
2 1
H
G
F
6.4 Humidity cycle test
Cycles 5
65℃ 90-95% RH
25℃90-95% RH
1h10h
12h
F
1h
All these tests above should be measured after leaving normal temperature for 2hrs.
E
E
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
D
Height 100cm
(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 :
C
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
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:
A
Rev.
DrawnDate
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
6 5 4
08/09/19
汤浩君
赵 峥
李红元
FT-32T-3.2A12
Piezo Ceramic Element
DRG NO: BS/TEY01.277A
3 2 1
Page:5 of 7
B
A
Page 6
6
FT-32T-3.2A12
H
5 4 3 2
8. History change record
1
H
version
G
F
E
D
No.
A
Before After
Change Items
Date
08/09/19
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:
A
Rev.
Date
6
Drawn
5 4 3 2
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
08/09/19
汤浩君
赵 峥
李红元
FT-32T-3.2A12
Piezo Ceramic Element
DRG NO: BS/TEY01.277A
Page:7 of 7
1
C
B
A
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