TE Connectivity – RTD temperature sensors feature a stable platinum resistor

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The PTF family from TE Connectivity (TE) is a series of Resistance Temperature Detectors (RTDs) which feature a stable platinum resistor in thin-film technology as their sensing element.

The operating-characteristic curve of these RTDs conforms to the specifications of the DIN EN 60751 standard. The platinum resistive material in the sensing element ensures the stability of the device’s performance over time and temperature.

The PTF sensors consist of a structured platinum film on a ceramic substrate, passivated by a glass coating. The connection wires are protected with glass on the welding area.

The connection wires are either gold-coated nickel wire or silver wire. Gold-coated nickel wire is preferred for welding applications which need to be able to withstand a higher temperature, although they can also be soldered. Silver wires are preferred for solder applications at lower temperatures.

Benefitting from a small outline and low mass, the PTF RTDs have a low time constant; and are therefore suitable for use in control systems which require fast and precise feedback.

FEATURES

  • 3,850ppm/K thermal coefficient of resistance
  • 600°C maximum operating temperature
  • Resistance tolerances: ±0.24%, ±0.12%, ±0.06% or ±0.04%
  • ±0.43°C temperature tolerance at 25°C

APPLICATIONS

  • Medical equipment
  • Heating, ventilation and air-conditioning
  • White goods
  • Automotive
  • Industrial applications
  • Sensing element for plug-in probes

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