SRP Series - 15/30 V PolySwitch Lead Free Battery Strap PPTC - 125C Activation Temperature

Series: SRP
PTC SRP Series Image
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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.

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 highest voltage ratings available, combined with automotive qualifications are a unique combination for the SRP series.

Features & Benefits:

  • Qualified to AEC-Q200 for automotive applications
  • Current ratings from 1.2A to 4.2A
  • Voltage ratings from 15V to 20V
  • Fast time-to-trip
  • 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

Access specifications, certifications, check availability and order parts below

Catalog #IHold (A)ITRIP
Max Volts
Trip Time
Activation Temp (Deg C)Interrupt Current (A)Max Operating Temp (°C)Pd Typical (watts)Product
Partner ECAD ModelsStockSamplesCompare
SRP120F1.22.7151001.20.0850.160.2250.123125100Not Available0.8Product SpecificationSRP120FCheckOrder
SRP175F1.753.8151001. Available0.9Product SpecificationSRP175FCheckOrder
SRP200F24.4301001. Available1.6Product SpecificationSRP200FCheckOrder
SRP350F3.56.3301002.50.0170.0310.0530.024125100Not Available1.9Product SpecificationSRP350FCheckOrder
SRP420F4.27.6301002.90.0120.0240.0460.018125100Not Available2.2Product SpecificationSRP420FCheckOrder
Catalog # Certificates
Sorting icon
SRP120F CSAiconURicon
SRP175F CSAiconURicon
SRP200F CSAiconURicon
SRP350F CSAiconURicon
SRP420F CSAiconURicon
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
RF1669-000 SRP120F RoHS No 04/26/2016 PbFree No 04/26/2016 CoC_RoHS10_RF1669-000_SRP120F No
IPC_RF1669-000 (SRP120F)
RF1670-000 SRP175F RoHS No 04/26/2016 PbFree No 04/26/2016 CoC_RoHS10_RF1670-000 (SRP175F) REACH205_Declaration_RF1670-000_SRP175F No
Does not Contain IPC_RF1670-000 (SRP175F)
RF1675-000 SRP200F RoHS No 04/26/2016 PbFree No 04/26/2016 CoC_RoHS10_RF1675-000_SRP200F REACH_SVHC Declaration_RF1675-000 (SRP200F) No
Does not Contain
RF1673-000 SRP350F RoHS No 04/26/2016 PbFree No 04/26/2016 CoC_RoHS10_RF1673-000_SRP350F REACH_SVHC Declaration_RF1673-000 (SRP350F) No
Does not Contain IPC_RF1673-000 (SRP350F)
RF1672-000 SRP420F RoHS No 04/26/2016 PbFree No 04/26/2016 CoC_RoHS10_RF1672-000_SRP420F REACH_SVHC Declaration_RF1672-000 (SRP420F) No
Does not Contain
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