Shibaura Electronics


Thermistor Element

NSIII-U1 Thermistor

Heat resistance of 500℃ achieved

The world’s first thermistor operating at 500℃ has been achieved by full review of thermistor chip manufacturing methods and all material compositions. The NSⅢ-U1 has proven results for over 20 years in measuring engine exhaust gases and for heaters.

NSIII-U1 Thermistor


  • Composed of special materials for use under high temperatures
  • Heat resistance of 500℃
  • Reinforced glass end with high strength ceramics
  • Reduced damage to the glass during stress-giving processing
  • Improved reliability against oxide scale secured with enough creepage distance between the lead wires
  • Long-term stability in resistance
  • High-volume supply in high quality by integrated automatic production

Suitable for equipment for high temperature detection

  • Exhaust gases from automobiles (EGR systems)
  • Microwave ovens
  • Fan heaters (kerosene vaporizers)
  • Sensors for use under harsh conditions at high temperatures
Max. operating temperature 500℃
Thermal time constant Approx. 18 sec.
Dissipation constant Approx. 1.5mW/℃
Insulation resistance Min. 100MΩ at 500VDC

*Unless otherwise stated, all thermal time constants and dissipation constants are measured in still air.

Reliability data

Reliability data

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