Automotive High Temperature SMD Series - PolySwitch Automotive High Temperature Lead-Free Surface Mount Resettable PPTC

Littelfuse PTC Auto HighTemp SMD series image
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Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, 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 Automotive High Temperature SMD is the first miniature-sized High Temperature PPTC series from Littelfuse with AEC-Q200 qualification for Automotive Applications and it provides surface mount overcurrent protection for applications where space is a prime concern and resettable protection is desired.


  • Products meet applicable automotive industry standards
  • Compatible with high-volume electronics assembly
  • Smaller footprint
  • High Operating Temperature ˗ -40℃~125℃
  • Resettable solution against overcurrent and short-circuit
  • AEC-Q200 qualified, RoHS compliant, and ISO/TS16949 certificated
  • Surface-mount Form Factor


  • Expertise from the world’s leading resettable overcurrent protection manufacturer
  • Provides wider range of form factors to enhance design flexibility
  • Meets ever-increasing demand for compact and space-saving designs due to more electronics content in vehicle
  • Restores system operation after reset when fault condition is removed, thus provides safety and protection
  • Able to meet most stringent requirements for the extreme harsh automotive environment
  • Suitable for standard PCB assembly to enable automated mass production


  • Automotive and Industrial Transportation
  • Infotainment/Telematics
  • Climate Control Systems
  • Body Electronics
  • Sensor Protection
  • ADAS (Advanced Driver Assistance)
  • Auto Lighting
  • Security and Communication Systems

Access specifications, certifications, check availability and order parts below

Catalog #IHold (A)ITRIP
Max Volts
RaMAX (Ω)Max
Trip Time
Interrupt Current (A)Max Operating Temp (°C)Product
Partner ECAD ModelsStockSamplesCompare
AHS080-2018-20.8216701.50.130.550.55970125Product SpecificationAHS080-2018-2CheckOrder
AHS120-21.22.316502.20.150.340.34250125Product SpecificationAHS120-2CheckOrder
AHS120F/331.22.3330.150.34220125 AHS120F/33Check
AHS160-21.63.216702. SpecificationAHS160-2CheckOrder
AHS2002416702. SpecificationCheckOrder
AHS30036167030.0240.0830.083870125Product SpecificationCheckOrder
AHS300F/2436240.0150.1820125 AHS300F/24Check
microASMDCH075F0.752.25160.10.68820125 microASMDCH075FCheck
microASMDCH110F1.13.3160.060.5820125 microASMDCH110FCheck
microASMDCH125F1.253.75120.030.3840125 microASMDCH125FCheck
microASMDCH150F1.54.5120.0250.25840125 microASMDCH150FCheck
MINIASMDCH050F-20.51.630201.20.21.350.20.1125 MINIASMDCH050F-2CheckOrder
nanoASMDCH005F0.050.15303.5350.2520125 nanoASMDCH005FCheck
nanoASMDCH010F0.10.33017.50.520125 nanoASMDCH010FCheck
NANOASMDCH016F-20.160.830200.90.7660.1125Product SpecificationNANOASMDCH016F-2CheckOrder
NANOASMDCH035F-20.350.95165010. SpecificationNANOASMDCH035F-2CheckOrder
NANOASMDCH035F/30-20.351.7530201. SpecificationNANOASMDCH035F/30-2CheckOrder
NANOASMDCH050F/24-20.52.524201. SpecificationNANOASMDCH050F/24-2CheckOrder
nanoASMDCH075F0.752.25120.080.46840125 nanoASMDCH075FCheck
PICOASMDCH005F-20.050.1816400.63.5383.50.08125 PICOASMDCH005F-2CheckOrder
PICOASMDCH010F-20.10.616401111111.5125 PICOASMDCH010F-2CheckOrder
picoASMDCH016F0.160.68160.86840125 picoASMDCH016FCheckOrder
PICOASMDCH020F-20.20.716400.90.753.40.750.1125 PICOASMDCH020F-2CheckOrder
picoASMDCH035F0.351.1160.31.9840125 picoASMDCH035FCheck
picoASMDCH050F0.51.7161. CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
RF1640-000 AHS080-2018-2 RoHS No 08/31/2008 PbFree No 08/31/2008 CoC_RoHS10_RF1640-000_(AHS080-2018-2) REACH_SVHC Declaration_RF1640-000 (AHS080-2018-2) Yes
Does not Contain
RF2573-000 AHS120-2 RoHS No 06/27/2018 PbFree No 06/27/2018 CoC_RoHS10_RF2573-000_AHS120-2 REACH_SVHC Declaration_RF2573-000 (AHS120-2) Yes
Does not Contain
RF1641-000 AHS160-2 RoHS No 07/10/2018 PbFree No 07/10/2018 CoC_RoHS10_RF1641-000_AHS160-2 REACH209_Declaration_RF1641-000_AHS160-2 Yes
Does not Contain
RF0422-000 AHS200-2 RoHS No 08/31/2008 PbFree No 08/31/2008 CoC_RoHS10_RF0422-000_AHS200-2 REACH_SVHC Declaration_RF0422-000 (AHS200-2) Yes
Does not Contain
RF1644-000 AHS300-2 RoHS No 11/02/2017 PbFree No 11/02/2017 CoC_RoHS10_RF1644-000 (AHS300-2) REACH_SVHC Declaration_RF1644-000 (AHS300-2) Yes
Does not Contain
RF4983-000 MINIASMDCH050F-2 RoHS No 04/05/2021 PbFree No 04/05/2021 CoC_RoHS10_RF4983-000_miniASMDCH050F REACH211_Declaration_RF4983-000_miniASMDCH050F Yes
Does not Contain
RF4896-000 NANOASMDCH016F-2 RoHS No 07/02/2020 PbFree No 07/02/2020 CoC_RoHS10_RF4896-000_NANOASMDCH016F-2 REACH209_Declaration_RF4896-000_NANOASMDCH016F-2 Yes
Does not Contain
RF4646-000 NANOASMDCH035F-2 RoHS No 03/19/2020 PbFree No 03/19/2020 CoC_RoHS10_RF4646-000_NANOASMDCH035F-2 REACH219_Declaration_RF4646-000_(nanoASMDCH035F-2) Yes
Does not Contain
RF4897-000 NANOASMDCH035F/30-2 RoHS No PbFree No CoC_RoHS10_RF4897-000_(NANOASMDCH035F-30-2) REACH219_Declaration_RF4897-000_(NANOASMDCH035F-30-2) Yes
Does not Contain
RF4914-000 NANOASMDCH050F/24-2 RoHS No 09/13/2021 PbFree No 09/13/2021 CoC_RoHS10_RF4914-000_(NANOASMDCH050F-24-2) REACH219_Declaration_RF4914-000_(NANOASMDCH050F-24-2) Yes
Does not Contain
RF4927-000 PICOASMDCH005F-2 RoHS No 09/22/2020 PbFree No 09/22/2020 Yes
RF4778-000 PICOASMDCH010F-2 RoHS No 04/26/2016 PbFree No 04/26/2016 CoC_RoHS10_RF4778-000_PICOASMDCH010F-2 REACH209_Declaration_RF4778-000_PICOASMDCH010F-2 Yes
Does not Contain
RF4929-000 PICOASMDCH020F-2 RoHS No PbFree No CoC_RoHS10_RF4929-000_PICOASMDCH020F-2 REACH211_Declaration_RF4929-000_PICOASMDCH020F-2 Yes
Does not Contain
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