User Manual

BESTAR ELECTRONICS INDUSTRY CO.,LTD
No. Item Specification
1. Resonant Frequency 2.4~2.6K Hz@10mV Oscillation Level
see page3&3.1
2. Resonant Impedance 500ohm max @10mV Oscillation Level
3. Static Capacitance 30± 30%nF at 120Hz,see page3&3.2
Static Feedback Capacitance 4± 30%nF at 120Hz,see page3&3.2
4. Insulation Resistance Min.200M ohm @50V see page3&3.3
5. Operating Voltage 3 - 50 Vp-p(silver to metal disc excluding feedback)
6. Feedback electrode output voltage
and electrode input voltage ratio ≥2.5 see page 4 and test set up FIG1
7. "Pull off"force between silver
and ceramic layer (horizontally) 20N min see page 4 &5.2 a and test set up FIG2
8. "Pull off" force between silver
and ceramic layer (vertically) 2.5N min see page 4 &5.2 b and test set up FIG3
9. Operating Temperature -30...+85°C
10. Storage Temperature -40...+85°C
11. Metallic supporter Brass
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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Rev.
Date Drawn
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Note
J 09/08/31 汤浩君
I 09/05/11 汤浩君
H 09/01/17 汤浩君
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FT-39T-2.5B1
1.Electrical characteristics
H
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Piezo Ceramic Element
Approved by:
李红元
DRG NO: BS/TEY01.117J
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www.be-star.com [e-mail]
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FT-39T-2.5B1
09/08/31
汤浩君
赵峥
Date:
Checked by:
Drawn by:
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博 士 達
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