1206 - LR Series - Surface Mount End-Banded Chip Thermistors 1206 Style (125°C)

Series: 1206 - LR
External overview image
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 surface mount end-banded thermistor elements are designed for use on hybrid substrates, integrated circuits or printed circuit boards. They have a solder coated metallization which is suitable for various contact techniques including wire bond, epoxy or solder. Since they are manufactured using the most advanced equipment and technology available, their dimensional parameters are extremely uniform making the devices especially suitable for use with automatic handling and placement equipment.


  • Surface mountable
  • Small size
  • Low cost
  • Nickel Barrier


  • Non-standard resistance values and tolerances
  • Tape and reel packaging
  • Solder coated metallization


  • Thermal time constant: 10 seconds max
  • Dissipation constant: 1 mW/°C
  • Rated to +125°C maximum operating temperature

Access specifications, certifications, check availability and order parts below

Catalog #Resis Ω @ 25°CResis Tol ± % @25°CMax Power RatingBeta (K) 25-85°COperating TemperatureEngineering DrawingRT TablePartner ECAD ModelsCompare
LR102D0J10005400mW3250-40° to 125°CEngineeringRTLR102D0J
LR103G0J100005400mW3750-40° to 125°CEngineeringRTLR103G0J
LR104J0J1000005320mW3975-40° to 125°CEngineeringRTLR104J0J
LR204R0J2000005400mW4250-40° to 125°CEngineeringRTLR204R0J
LR222E0J220053400-40° to 125°CEngineeringRTLR222E0J
LR252L0J25005400mW4100-40° to 125°CEngineeringRTLR252L0J
LR303K0J300005400mW4000-40° to 125°CEngineeringRTLR303K0J
LR502F0J50005400mW3550-40° to 125°CEngineeringRTLR502F0J
LR503L0J500005400mW4000-40° to 125°CEngineeringRTLR503L0J
LR504M0J5000005320mW4050-40° to 125°CEngineeringRTLR504M0J
To request product environmental information, 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.