203JM1A - JM Series

Series: JM
Littelfuse Leaded Thermistors DO-35 Interchangeable - JM image
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Littelfuse low cost interchangeable glass encapsulated thermistors are manufactured using super stable, precision 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. They are well suited for uses where their interchangeability eliminates the necessity for costly individual circuit calibration. Their uniform dimensions and axial lead configuration make them especially suitable for use with automatic insertion equipment.

Features:

  • High temperature capability to +300°C
  • Hermetically sealed glass package
  • High accuracy
  • Low cost
  • Excellent long-term stability
  • High voltage insulation
  • Tinned CCS lead wires are solderable or weldable

Options:

  • Special lead forms
  • Non-standard resistance values and tolerances
  • Point matched at specified temperatures
  • Tape and reel packaging

Specifications:

  • Interchangeability accuracy of ±1.0°C (0°C to +100°C)
  • Thermal time constant: 5 seconds (still air)
  • Thermal time constant: 0.5 seconds (stirred liquid)
  • Dissipation constant: 2 mW/°C (still air)
Application Form

Temperature Sensors Info

Thermistor Info

What is an RTD?

Thermistor Quality Assurance

Reliability Testing


Property (Mouseover for details) Value
Resistance Ohms @ 25°C 20000
Accuracy (0°C to +100°C) ±1.0
Resistance-Temperature Curve J
Operating Temperature -55° to 300°C

To request product environmental information, please complete the Product Environmental Information Request Form.