0402L Series - PolySwitch® Lead-Free Surface Mount Resettable PPTC

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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 0402L Series PTC provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired.

Features & Benefits:

  • 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
  • 0402 size- the smallest PPTC in the market 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
  • Tablet and Notebook PCs 
  • E-readers

Access specifications, certifications, check availability and order parts below

Catalog #IHold (A)ITRIP
Max Volts
Trip Time
Operating TemperaturePartner ECAD ModelsStockSamplesCompare
0402L010SL0.10.36400.50.1520.51-40° to 85°C0402L010SLCheckOrder
0402L020SL0.20.56400.50.11.2511-40° to 85°C0402L020SLCheckOrder
0402L035SL0.350.76500.50.050.780.1-40° to 85°C0402L035SLCheckOrder
0402L050SL0.516500.50.040.480.1-40° to 85°C0402L050SLCheckOrder
0402L075SL0.751.56400.50.030.380.1-40° to 85°C0402L075SLCheck
0402L100SL126400.50.030.2580.2-40° to 85°C0402L100SLCheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0402L010SLKR PTC 6V POLYFUSE SURF MOUNT 0402 SL .100A RoHS No 09/30/2021 PbFree No 09/30/2021 CoC_RoHS10_0402L010SLKR REACH_SVHC Declaration_0402L010SLKR.pdf Yes
Does not Contain
0402L020SLKR PTC 6V POLYFUSE SURF MOUNT 0402 SL .100A RoHS No 09/30/2021 PbFree No 09/30/2021 CoC_RoHS10_0402L020SLKR REACH219_Declaration_0402L020SLKR Yes
Does not Contain
0402L035SLKR PTC 6V POLYFUSE SURF MOUNT 0402 SL .350A RoHS No 09/30/2021 PbFree No 09/30/2021 CoC_RoHS10_0402L035SLKR REACH211_Declaration_0402L035SLKR Yes
Does not Contain
0402L050SLKR PTC 6V POLYFUSE SURF MOUNT 0402 SL .500A RoHS No 09/30/2021 PbFree No 09/30/2021 CoC_RoHS10_0402L050SLKR REACH219_Declaration_0402L050SLKR Yes
Does not Contain
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