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NASA-Qualified Temperature Sensors, Model 44900 Series

NASA-Qualified Temperature Sensors, Model 44900 Series-CAT-NTC0069
  • MEAS
|
  • MEAS 44900
The model 44900 Series temperature sensors are NASA-Qualified epoxy encapsulated precision interchangeable NTC thermistors for use in extended space flight applications.
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Product Features

  • NTC Sensor Type : Epoxy Coated NTC Thermistor

  • Lead Wire Length (mm): 400, 500, 200, 410, 640, 310, 76, 450, 1000, 160, 800, 610, 56, 300, 760, 600, 150

  • Lead Wire Length (in): 15.748, 11.811, 25.197, 24.016, 29.921, 2.205, 7.874, 12.205, 16.142, 6.299, 31.496, 23.622, 5.901, 2.992, 19.685, 17.717, 39.37

  • Resistance (at 25°C) (kΩ): 2.252, 3, 30, 5, 10

  • β-Value(25/85) (K): 3943, 3694, 3987

  • Tolerance β-Value (%): ±0.4, ±0.8

Available from

LADD Inc
Overview
NTC definition

All space-qualified NTC thermistors are fully flight tested and characterized.  Line re-qualified yearly per MIL-PRF-23648 requirements as specified in S311-P18 document. All S311-P18 lead options wire options available. 

Testing

Re-qualification includes the following tests referenced in MIL-PRF-23648

  • Short time load
  • Thermal shock
  • Insulation resistance
  • Resistance to soldering heat
  • Low-temperature storage
  • High-temperature storage
  • Dissipation constant
  • Thermal time constraint
  • Terminal strength
  • Moisture resistance
  • High-temperature exposure
  • Medium-impact shock
  • Immersion
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Benefits

  • Flight Qualified
  • 2252 Ohm to 30K Ohm Resistance @ 25°C
  • Interchangeability to ±0.1°C
  • High Sensitivity
  • Thermally Conductive Epoxy Coating Exhibits <0.66% TML, <0.01% CVCM, 0.10% WVR when tested per ASTM E-595-90
  • Pressed Disk Ceramic Characteristics
  • Thermally Conductive Epoxy Coating
  • RoHS Compliance
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Applications

  • Extended Space Applications
  • Low and Mid Range Temperature Applications
  • Tight Tolerance Instrumentation
  • Applications Requiring Sensing Small Changes in Temperature
  • Applications with Outgassing Requirements
Features

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • NTC Sensor Type  Epoxy Coated NTC Thermistor

  • Tolerance β-Value (%) ±0.4, ±0.8

Dimensions

  • Lead Wire Length (mm) 400, 500, 200, 410, 640, 310, 76, 450, 1000, 160, 800, 610, 56, 300, 760, 600, 150

  • Lead Wire Length (in) 15.748, 11.811, 25.197, 24.016, 29.921, 2.205, 7.874, 12.205, 16.142, 6.299, 31.496, 23.622, 5.901, 2.992, 19.685, 17.717, 39.37

Usage Conditions

  • Resistance (at 25°C) (kΩ) 2.252, 3, 30, 5, 10

  • Operating Temperature Range (°C) -55 – 70, -55 – 90

  • Operating Temperature Range (°F) -67 – 158, -67 – 194

  • Operating Temperature (Max) (°C) 70, 90

  • Operating Temperature (Max) (°F) 194, 158

Electrical Characteristics

  • β-Value(25/85) (K) 3943, 3694, 3987

Other

  • EU RoHS Compliance  Not Compliant

  • EU ELV Compliance  Not Compliant

Reference Number

  • TE Internal Number CAT-NTC0069

Related Materials

Datasheets & Catalog Pages