Part Number: SMC22D20H6412STPiezoelectric Ceramic Cylinder. Thickness vibration mode.Piezo Material: SM412Dimensions: Ext. Diam. 22 x Int Diam 20 x Height 6mmResonant frequency fr: 2.020 MHz ±3 %Electromechanical coupling coefficient Keff: 41.43Dielectric Loss tg δ: =1.4%Resonant impedance Zr: ≤8.5ΩStatic capacitance Cs: 1544pF±20%@1kHzTest Condition: 23±3 °C 40~70% R.H.fr, Zm, Kr => Thickness vibration modeCs tanδ => LCR meter at 1KHz 1VrmsApplications, among others, are: Piezo transducer for Underwater communication to send receive data and voice. It is also used for vibration, matter dispersion, biomedical probes, sonar, Hydrophone
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