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Semitec F-micro Miniature Temperature Sensors

The Fμ thermistor sensor (pronounced “F-micro”) has been developed using SEMITEC’s
proprietary thin film thermistor technology. It is the only sensor in the world using this unique technology.

It is highly suitable for catheter applications due to its high volume production capability, reliability, accuracy and fast response.

Now available in packages as small as 0.3mm (D) x 1.8mm (L) with a Tc≤20ms.


  • Medical catheters
  • Handheld medical devices
  • Body temperature monitoring
  • Medical guide wires
  • Laboratory test equipment
  • Clinical instruments


  • Very fast response time (<51ms)
  • High accuracy option; ±0.14K at 37°C
  • Operating temperature range; -10/+70°C
  • Laser trimmed for highest accuracy
  • Glass encapsulated


  • 2 stock items available:
    • Probe size – 0.5mm (D) x 2.3mm (L)   Tc≤52ms
    • Probe size – 0.3mm (D) x 1.8mm (L)   Tc≤20ms
Semitec F Micro Miniature Temperature Sensor Semitec F Micor dimensional diagram

Technical Specifications

Semitec F Micro table