PS Series - Standard Precision Interchangeable Thermistors (150°C) ± 0.1°C Accuracy - Uninsulated Leads

Series: PS
Roll Over to Zoom
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 standard precision interchangeable thermistors are low cost, highly accurate, stable devices designed specifically for temperature sensing and control applications. They are particularly suited for uses where their precision interchangeability eliminates the necessity for costly individual circuit calibration.


  • High accuracy
  • Fast thermal response
  • Low cost
  • Small size
  • Epoxy encapsulated
  • High stability
  • Long life
  • R/T Curve-matched


  • Special lead materials and lengths
  • Special encapsulants or probe housings
  • Non-standard resistance values and tolerances


  • Thermal time constant: 1 second max. in a well stirred oil bath, 10 seconds max. in still air
  • Dissipation constant: 1 mW/°C
  • Maximum power rating: 30 mW at 25°C derated to 1 mW at 125°C
  • Interchangeability tolerance of ±0.1°C or ±0.2°C from 0-70°C
  • Operating temperature: -80°C to +150°C
  • Storage and operation temperatures for best long term stability: -80° to +75°C

Access specifications, certifications, check availability and order parts below

Catalog #Resis Ω @ 25°CR-T CurveMax Power RatingBeta (K) 0-50°CMin Operating Temp (°C)Max Operating Temp (°C)Sample CapableEngineering DrawingRT TableSamplesCompare
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
PS103G2 NTC THERMISTOR 10K OHM 0.1C INTCHG RoHS No 03/05/2020 PbFree No 03/05/2020
PS103J2 NTC THERMISTOR 10K OHM 0.1C INTCHG RoHS No 10/31/2019 PbFree No 10/31/2019 REACH209_Declaration_PS103J2_12-04-2020 Yes
Does not Contain
PS104J2 NTC THERMISTOR 100K OHM 0.1C INTCHG RoHS No 09/24/2019 PbFree No 09/24/2019 Yes
PS222J2 NTC THERMISTOR 2.252K OHM 0.1C INTCHG RoHS No 09/23/2019 PbFree No 09/23/2019 Yes
PS302J2 NTC THERMISTOR 3K OHM 0.1C INTCHG RoHS No 09/23/2019 PbFree No 09/23/2019 Yes
PS303J2 NTC THERMISTOR 30K OHM 0.1C INTCHG RoHS No 09/18/2019 PbFree No 09/18/2019
PS502J2 NTC THERMISTOR 5K OHM 0.1C INTCHG RoHS No 07/24/2020 PbFree No 07/24/2020 Yes
PS503J2 NTC THERMISTOR 50K OHM 0.1C INTCHG RoHS No 04/23/2019 PbFree No 04/23/2019 Yes
If the product environmental information that you are looking for does not appear in this tab,
please complete the Product Environmental Information Request Form.

pdf icon Sensing Products Selection Guide

This guide provides an introduction to magnetic sensing and options for value-added custom design packages.