2Mhz Piezoelectric Ceramic Ring is 28×9×1mm，with Silver electrodes on both sides.
- model：HCPP4R289T1
- Piezo Material: PZT-4
- Dimensions: OD 28 x ID 9 x Th 1mm
- Resonant frequency fr: 2.08MHz±5%
- Electromechanical coupling coefficient Keff: ≥45%
- Resonant Mode: Thickness mode vibration application
- Resonant impedance Zm: ≤3.0 Ω
- Static capacitance Cs: 6650pF±15%@1kHz
- Test Condition: 23±3 °C 40~70% R.H.
- fr, Zm, Kp => Thickness mode vibration application
- Cs => LCR meter at 1KHz 1Vrms
2Mhz Piezoelectric Ceramic Ring Applications: Bolt-clamped ultrasonic transducer, Ultrasonic Sensor, Vibration Sensor, Pressure sensor, Vibration generation.