Customer:
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Part No:
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Product: Piezoelectric elements
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SWT Part No: 3S31+3.5SA
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一、Configuration
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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B: brass√ S: stainless steel N: nickel
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二,Electrical specification
Resonant frequency (KHz)
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Fr =3.1±0.5
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Resonant impedance (Ω)
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Rr≤500
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Main electrode static capacity (nF)
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CM =27±30%
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Feedback electrode static capacity(nF)
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CF=3.5±30%
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Standard Test Conditions
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Temperature:25±1℃ Humidity :45%~75%
Air Pressure:86~106kPa
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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.( ℃)
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Time(Sec.)
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Times
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Lead Free
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★
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silver electrode
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300±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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320±10
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3 second or less.
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1~2
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