91Khz Piezoelectric ceramic ring is 15×8.5×0.7mm，Piezoelectric Ceramic Ring with Silver electrodes on both sides.
- Model：HCPP4R15805T007
- Piezo Material: PZT-4
- Dimensions: OD 15 x ID 8.5 x Th 0.7mm
- Resonant frequency fr: 91KHz ± 3KHz
- Electromechanical coupling coefficient Keff: ≥36%
- Resonant Mode: Hoop mode vibration
- Resonant impedance Zm: ≤12 Ω
- Static capacitance Cs: 2100pF±15%@1KHz
- Test Condition: 25±3 °C 40~70% R.H.
- fr, Zm, Kp => Hoop mode vibration
- Cs => LCR meter at 1KHz 1Vrms
91Khz Piezoelectric ceramic ring Applications: Bolt-clamped ultrasonic transducer, Ultrasonic Sensor, Vibration Sensor, Pressure sensor, Vibration generation.