Piezo Ceramic Disc 1 MHz

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Part Number: SMD15T21R111WL

Piezo Electric Ceramic Disc Transducer. Both electrodes on one side (R configuration).  Thickness mode vibration

This product is compatible with Texas Instruments TDC1000 which is a fully integrated analog front-end (AFE) for ultrasonic sensing measurements of level, fluid identification/ concentration, flow, and proximity/ distance applications common in automotive, industrial, medical, and consumer markets. When paired with an MSP430/C2000 MCU, power, wireless, and source code, TI provides the complete ultrasonic sensing solution.

How to Mount it in Ultrasonic Sensing for Level Measurement and Fluid ID using TI’s TDC1000

Piezo Material: SM111
Dimensions: 15mm diameter x 2.1mm thickness
Wire leads: 2.5 inches 
Resonant frequency fr: 1 MHz±3 %     
Electromechanical coupling coefficient Kt:≥39%
Resonant impedance Zm: ≤7.6 Ω
Static capacitance Cs: 900pF±15%@1kHz
Test Condition: 23±3 °C 40~70% R.H.
fr, Zm, Kp => Thickness mode vibration
Cs => LCR meter at 1KHz 1Vrms

Applications: Piezo transducer vibration, matter dispersion, Ultrasonic Sensor, wall thickness sensor, material stress sensor, pressure sensor,piezo electricity harvesting, compression sensor, piezo expansion sensor, biomedical probe and others.