Part No.: FT-35T-2.8B1
Resonance Frequency (kHz) : 2.8±0.5
Resonance Impedance(Ω)≤500
Capacitance(pF) 30000±30%
Dielectric Loss ≤5%
Input Voltage (Vp-p) ≤30
Operating Temperature(℃) -20~+70
Storage Temperature(℃) -30~+80
Metal Material Brass
Metal Plate Diameter(mm) D=φ35±0.2
Ceramic Disc Diameter(mm d=φ25±0.5
Metal Plate Thickness(mm) t=0.3±0.02
Total Thickness(mm) T=0.5±0.05
The sound source of the piezoelectric buzzer sound element mainly comes from the piezoelectric vibrating plate.
The piezoelectric vibrating plate is composed of a piezoelectric ceramic plate with electrodes printed on both sides and a metal plate (brass or stainless steel, etc.).
Use an adhesive to bond the piezoelectric vibrating plate and the metal sheet together, which is what we commonly call the buzzer sheet.
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