Piezo Electric Ceramic Ring Transducer.

Part Number: SMR3515T55
 Piezoelectric Ceramic Ring with Silver electrodes on both sides. 

Piezo Material: SM121
Dimensions: OD 35 x ID 15 x Th 5.5mm
Resonant frequency fr: 44 KHz±2 KHz
Electromechanical coupling coefficient Keff: ≥41%
Resonant Mode: Hoop mode by impedance analyzer
Resonant impedance Zm: ≤14.5 Ω
Static capacitance Cs: 1489pF±15%@1kHz
Test Condition: 23±3 °C 40~70% R.H.
fr, Zm, Kp => Hoop mode by impedance analyzer
Cs => LCR meter at 1KHz 1Vrms
Drawings: SMR3515T55,
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 and others.
Notes:
Old Part Number: SMD3515T55
PIEZO STEMINC

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Piezo transducer vibration, matter dispersion, Sonar Transducer Ultrasonic Sensor, Wall thickness sensor, Material stress sensor, Pressure sensor, Piezo Energy harvesting, Piezo Electricity harvesting, Biodiesel mixing, Fish finder transducer, compression sensor, Piezo expansion sensor, biomedical probe, piezo transducer underwater communication, Piezo Welding, Tonpilz