Thermistors from Littelfuse, Inc.

Glass Encapsulated Thermistors -- USUG1000-103J

Glass Encapsulated Thermistors -- USUG1000-103J -- View Larger Image
Glass Encapsulated Thermistors -- USUG1000-103J-Image

Littelfuse UL Recognized glass encapsulated thermistors are manufactured using super stable NTC chips which are hermetically sealed in a glass (DO-35 diode style) package. The result is a device which exhibits excellent long-term reliability and stability even when subjected to severe environmental or thermal conditions. Their uniform dimensions and axial lead configuration make them especially suitable for use with automatic insertion equipment.


  • Temperature rating = -40 to +150°C
  • Hermetically sealed glass package
  • Excellent long-term stability
  • Tinned CCS lead wires are solderable or weldable


  • Resistance temperature curve = "J"
  • Dissipation constant = 2mW/°C nominal (still air)
  • Maximum power rating = 20 mW
  • UL File Number E232830 (UL Category XGPU2)


Product Category
Temperature Range
-40 to 150 C (-40 to 302 F)
Resistance (@25°C)