Customer:
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Part No:
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Product: Piezoelectric elements
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SWT Part No: 3B35+2.8SA
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一、Configuration
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Appearance and dimension: see the drawing
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Material
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Piezoelectric
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Configuration
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1:plane√ 2:discal
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Electrode form
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A: fullness √ B: feedback
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Metal material
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T: brass √ G: stainless steel N: nickel
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二,Electrical specification
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Resonant frequency (kHz)
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Fs=2.8±0.5
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Resonant impedance (Ω)
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Rr≤300Ω
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Main electrode static capacity (NF)
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CM =35±30%
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Feedback electrode static capacity (NF)
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CF =3.8±30%
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Operating temperature (℃)
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-20~+70
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Storage temperature (℃)
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-30~+80
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Piezoelectric elements
Manual Soldering process
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Soldering Parameter
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Temp.( 0C)
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Time(Sec.)
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Times
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Inclusive Lead
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silver electrode
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280±10
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1.5 second or less.
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1~2
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metal plate
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320±10
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2 second or less.
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1~2
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Lead Free
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★
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silver electrode
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340±10
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2 second or less.
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1~2
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★
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metal plate
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370±10
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3 second or less.
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1~2
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Solder Dot: Diameter MAX 3.0mm, High MAX 1.5mm,
Soldering sequence: 1、 silver electrode 2、 metal plate
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