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128 Series Thermistors are designed for use as precision sensing elements where curve-matched interchangeability is required for precise temperature control and precision temperature indication. These highly reliable products consist of a matched pair of hermetically sealed thermistors and may be selected to tolerances only limited to the system’s capability available to test them. Also available in a matched large glass probe configuration (129 Series).

  • Dissipation constant in still air: 2,1 mW/°C
  • Time constant in air: 10.0 s
  • Nominal resistance at [25 °F to 77 °F]: 2,000 Ohm, 15,000 Ohm
  • Maximum diameter: 3,05 mm [0.120 in]
  • Termination material: dumet
  • Lead length: 31,8 mm [1.25 in]
128 Series Thermistors - Honeywell


Temperature Sensors Line Guide Product Line Guide English 290KB
Thermal Sensors Product Range Guide English 12MB

Browse 128 Series Products

Product Resistance Operating Temperature Accuracy
128-153FDE-Q01 15,000 Ohm -60 °C to 300 °C [-76 °F to 572 °F] -20 °C to 50 °C [-4 °F to 122 °F]
128-202VMW-Q01 2,000 Ohm -60 °C to 300 °C [-76 °F to 572 °F] 10 °C to 20 °C [50 °F to 68 °F]


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