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is_customized:Yes,you could tell me the scale ,material or parameters you needed,we&;ll verify whether it's available or need to produce,the transport date and cost could be checked with the company Customer Service,Thank you!More order more discount. Item:PZT DiscSize : 25x3M-PZT4 Piezoelectric Ceramic Disc with Silver electrodes on each side Mode: Radial mode vibration applicationStatic capacitance Cs: 7250pF±10%@1kHzTest Condition: 25±3 °C 40~70% R. fa, Qm, Kp => Thickness mode vibration utility Cs => LCR meter at 1KHz 1Vrms Applications: Bolt-clamped ultrasonic transducer, Ultrasonic Sensor, Vibration Sensor, Pressure sensor, Vibration generation, Biodiesel mixing transducer, Piezo growth sensor, compression sensor, Piezo Welding, Tonpilz Transducer and others. Notes: Keff = ≥35%. Keff is calculated by way of the formula, ((fa2-fr2)/fa2), and fa is the anti-resonant frequency of the ring mode