直径35MM 频率2.8kHz压电蜂鸣片规格书
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思威特压电蜂鸣片规格书
直径35mm 频率2.8kHz
Customer:Part No:
P roduct: Piezoelectric elements SWT Part No: 3B35+2.8SA
一、Configuration
Appearance and dimension: see the drawing
Material Piezoelectric
Configuration 1:plane√ 2:discal
Electrode form A: fullness √ B: feedback
Metal material T: brass √ G: stainless steel N: nickel 二，Electrical specification
Resonant frequency (kHz) Fs=2.8±0.5
Resonant impedance (Ω) Rr≤300Ω
Main electrode static capacity (NF) C M =35±30%
Feedback electrode static capacity (NF) C F =3.8±30%
Operating temperature (℃) -20～+70
Storage temperature (℃) -30～+80
Piezoelectric elements Manual Soldering process
Soldering Parameter
Temp.( 0C) Time(Sec.) Times
Inclusive Lead silver electrode 280±10 1.5 second or less. 1~2 metal plate 320±10 2 second or less. 1~2
Lead Free ★silver electrode 340±10 2 second or less. 1~2 ★metal plate 370±10 3 second or less. 1~2
Solder Dot: Diameter MAX 3.0mm, High MAX 1.5mm, Soldering sequence: 1、silver electrode 2、metal plate Remark: ★SWT Instance Soldering Process APPEARANCE File Code : RDYP0712048 Rve: 0
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