LR4-730F - LR4 Series

Series: LR4
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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.

Littelfuse PolySwitch, a pioneer of polymeric positive temperature coefficient (PPTC) resettable devices, offers several material platforms to help protect battery applications. The high trip temperature, broad range of hold current ratings, and high voltage ratings available, combined with automotive qualifications are a unique combination for the LR4 series

Features & Benefits:

  • Qualified to AEC-Q200 for automotive applications
  • Current ratings from 1.9A to 13A
  • Voltage ratings from 15V to 20V
  • Broad range of resettable devices available
  • Low-resistance devices increase battery operating time
  • RoHS compliant and Halogen free
  • Compatible with high-volume electronics assembly
  • UL Recognized to UL 1434
  • CSA Certified to CSA TIL No. CA-3A
  • TUV Certified to EN 60730-1


  • Rechargeable batteries for mobile devices
  • E-call systems
  • Vacuum cleaner
  • Power tools
  • Portable medical devices
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
RF1547-000 LR4-730F RoHS No 06/13/2017 PbFree No 06/13/2017 CoC_RoHS10_RF1547-000_LR4-730F REACH_SVHC Declaration_RF1547-000 (LR4-730F) Yes
Does not Contain IPC_RF1547-000 (LR4-730F)
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