Part Number: SMR1812T12412
Piezoelectric Ceramic Ring with Silver electrodes on both sides.
Piezo Material: SM412
Dimensions: OD 18 x ID 12 x Th 1.2mm
Resonant frequency fr: 1.8MHz±5%
Electromechanical coupling coefficient Keff: ≥40%
Resonant Mode: Thickness mode vibration application
Resonant impedance Zm: ≤75 Ω
Static capacitance Cs: 2000pF±15%@1kHz
Test Condition: 23±3 °C 40~70% R.H.
fr, Zm, Kp => Thickness mode vibration application
Cs => LCR meter at 1KHz 1Vrms
Applications: Bolt-clamped ultrasonic transducer, Ultrasonic Sensor, Vibration Sensor, Pressure sensor, Vibration generation, Biodiesel mixing transducer, Piezo expansion sensor, compression sensor, Piezo Welding, Tonpilz Transducer, Piezo ring atomizer and others.