0603L Series - PolySwitch® Lead-Free Surface Mount Resettable PPTC

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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.

The 0603L Series PTC provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired.


  • RoHS compliant, lead-free and halogen free
  • Fast response to fault currents
  • Compact design saves board space
  • Low resistance
  • Low-profile
  • Compatible with high temperature solders


  • USB peripherals
  • Disk drives
  • CD-ROMs
  • Plug and play protection for motherboards and peripherals
  • PDAs / digital cameras
  • Game console port protection

Access specifications, certifications, check availability and order parts below

Catalog #IHold (A)ITRIP
Max Volts
Trip Time
(deg C)
0603L0040.040.1224200.54400.21-40¦C - + 85¦C603Surface MountCheckOrder
0603L0100.10.315400.50.960.51-40¦C - + 85¦C603Surface MountCheckOrder
0603L0200.20.59400.50.553.510.6-40¦C - + 85¦C603Surface MountCheckOrder
0603L0250.250.559400.50.5380.08-40¦C - + 85¦C603Surface MountCheckOrder
0603L0350.350.756400.50.2180.1-40¦C - + 85¦C603Surface MountCheckOrder
0603L0500.516400.50.10.6880.1-40¦C - + 85¦C603Surface MountCheckOrder
Catalog # Certificates
Sorting icon
0603L010 curusURTUV_50119118icon
0603L020 curusURTUV_50119118icon
0603L025 curusURTUV_50119118icon
0603L035 curusURTUV_50119118icon

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