Manual

李红元
赵 峥
汤浩君
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This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
and shall not be used in whole or in part without its written content
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Piezo Ceramic Element
2 1
Page:02 of 05
Date:
09/03/06
Checked by:
Approved by:
Drawn by:
Note
Date Drawn
34
www.be-star.com [e-mail]
6 5
A
Rev.
A
DRG NO: BS/TEY01.094A
FT-21.5T-4.0A12
1.Electrical characteristics
1. Resonant Frequency 4.0±0.5K Hz
2. Resonant Impedance 200max.ohm
3. Capacitance at 120Hz 100±30%nF
4. Input Voltage ≤30Vp-p
5. Operating Tmperature -20...+60°C
6. Storage Temperature -20...+70 °C
7. Metal Material Brass
8. Pull test of silver layer(vertical) 2.5N min
9. Pull test of silver layer (horizontal) 20N min
10. Meshed Wire 8×2×0.05
FT-21.5T-4.0A12
2.Drawing
09/03/06
汤浩君
Ø21.5±0.05
Ø20±0.5
60±1.0
0.1±0.02
0.35±0.1
3±0.5
Brass
Ceramic
silver layer