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EPCOS/TDK Ultrasonic Piezo Disc Sensors | New Product Brief

February 12, 2020 by Mouser Electronics

This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.

EPCOS/TDK Ultrasonic Piezo Disc Sensors

TDK’s EPCOS ultrasonic piezo disc sensors provide stable and accurate sensing for applications including collision avoidance, level sensing, and flow metering in automotive and industrial applications. 

The contactless sensing and operation at up to 160°C allow the sensors to be used in harsh applications and with aggressive media. The sensors are extremely small, with diameters from 4 mm. to 12 mm. and thickness from 0.2 mm. to 4mm.

They’re offered with various metallization options, including wrap-around metallization for applications requiring both electrodes on one side. TDK offers ultrasonic piezo disc sensors that have been optimized for radial or thickness oscillation.

Designers can select the operating frequency to suit the application needs, with lower frequencies offering longer detection distances and higher frequencies providing greater precision.

  • Contactless sensing
  • Operating temperature range: -40°C to 160°C
  • Sensor sizes:
    • Diameters: 4mm to 12mm
    • Thickness: 0.2mm to 4mm
  • Screen printed or sputtered metallization
    • Optional wrap-around metallization to connect both electrodes to one side
  • Sensors available with design optimized for radial or thickness oscillation
  • Frequency: 200kHz to 4MHz

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