Part Number: SMR1005T20118Piezoelectric Ceramic Ring with Silver electrodes on both sides. Piezo Material: SM118Dimensions: OD 10 x ID 5 x Th 2mmResonant frequency fr: 154KHz ± 4KHzElectromechanical coupling coefficient Keff: ≥32% Resonant Mode: Radial mode vibration applicationResonant impedance Zm: ≤40 ΩStatic capacitance Cs: 260pF±15%@ 60Hz/1VTest Condition: 23±3 °C 40~70% R.H.fr, Zm, Kp => Radial mode vibration applicationCs => LCR meter at 1KHz 1VrmsApplications: Ophthalmic Devices, Bolt-clamped ultrasonic transducer, Ultrasonic Sensor, Vibration Sensor, Pressure sensor, Vibration generation, Biodiesel mixing transducer, Piezo expansion sensor, compression sensor, Piezo Welding, Tonpilz Transducer and others. and others.Notes: Keff = ≥32%. Keff is calculated by the formula, ((fa2-fr2)/fa2), and fa is the anti-resonant frequency of the hoop mode.
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