Part No.: FT-4800
Resonance Frequency (kHz) : 3.2±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=φ31.8±0.2
Ceramic Disc Diameter(mm d=φ30±0.5
Metal Plate Thickness(mm) t=0.1±0.02
Total Thickness(mm) T=0.6±0.05
What glue is used to bond piezo buzzer element?
The glue applied to the piezo diaphragm on the security alarm is generally UV glue, but the glue combined with epoxy + acrylic acid comes out, which can replace UV glue with high toughness and can withstand 260 ℃ high temperature for 10 seconds and 120 ℃ for 90 min
It is a kind of epoxy adhesive with high heat resistance, moderate curing strength, high impact resistance, and high humming resistance; It has toughness, impact resistance, displacement resistance and ultra-low linear expansion coefficient, excellent temperature resistance and simple operation.
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