AHEF Series - 32V PolySwitch Automotive High-Temperature Lead-Free Radial Leaded Resettable PPTC

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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 AHEF Series is a PPTC resettable device designed specifically for the automotive industry. It is a 32V high-temperature, leadfree, radial leaded resettable device that meets Littelfuse’s Automotive qualification. This qualification is based on AEC-Q200: Stress Test Qualification for Passive Components.

Features & Benefits:
  • Overcurrent and overvoltage circuit protection devices
  • Resettable and single-use overcurrent devices
  • Wide range of form factor and termination methods
  • Products meet applicable automotive industry standards
  • Devices compatible with high-volume electronics assembly
  • RoHS compliant, Lead-Free and Halogen-Free
  • Motor and motor circuit protection including power door-locks, mirrors, lumbar umps, seats, sunroofs and windows
  • Electronic Control Unit (ECU) I/O protection
  • Heating, Ventilation and Cooling (HVAC) motor and I/O protection
  • Telematics, infotainment and navigations systems
  • Liquid Crystal Display (LCD) back-light heaters
  • Power and cigarette lighter outlets, plugs and adapter/ chargers
  • Powered networks and buses
  • Air-flow detection and overcurrent protection in HVAC and cooling fan systems
  • Stall detection in express window and sunroof circuits
  • Resettable overcurrent protection for power distribution, electrical centers and junction boxes
  • Wire downsizing
  • Motor electromagnetic interference (EMI) suppression
  • Electrostatic discharge (ESD) damage protection
  • Load dump and other transient voltage protection

Access specifications, certifications, check availability and order parts below

Catalog #IHold (A)ITRIP
RaMAX (Ω)Max
Trip Time
Max Operating Temp (°C)Pd Typical (watts)Product
Partner ECAD ModelsStockSamplesCompare
AHEF0500.511000.351.11.131250.9Product SpecificationAHEF050CheckOrder
AHEF0700.71.41000. SpecificationAHEF070CheckOrder
AHEF10011.91000.150.430.436.21251.4Product SpecificationAHEF100CheckOrder
AHEF100010201000.0060.0160.016151257Product SpecificationAHEF1000CheckOrder
AHEF300361000.0350.110.1151253.2Product SpecificationAHEF300CheckOrder
AHEF5005101000.0150.040.0491255.3Product SpecificationAHEF500CheckOrder
AHEF7507.5151000.00740.0230.023131256.5Product SpecificationAHEF750CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
RF3055-000 AHEF050 RoHS No 08/13/2018 PbFree No 08/13/2018 CoC_RoHS10_RF3055-000_AHEF050-  REACH205_Declaration_RF3055-000_AHEF050 Yes
Does not Contain
RF3355-000 AHEF070 RoHS No 10/04/2018 PbFree No 10/04/2018 CoC_RoHS10_RF3355-000_AHEF070 REACH197_Declaration_RF3355-000_AHEF070 Yes
Does not Contain
RF3356-000 AHEF100 RoHS No 10/23/2017 PbFree No 10/23/2017 CoC_RoHS10_RF3356-000_AHEF100 REACH_SVHC Declaration_RF3356-000 (AHEF100) Yes
Does not Contain IPC_RF3356-000 (AHEF100)
RF3360-000 AHEF1000 RoHS No 09/14/2017 PbFree No 09/14/2017 CoC_RoHS10_RF3360-000_AHEF1000 Yes
RF3357-000 AHEF300 RoHS No 09/14/2017 PbFree No 09/14/2017 CoC_RoHS10_RF3357-000_AHEF300 REACH_SVHC Declaration_RF3357-000 (AHEF300) Yes
Does not Contain
RF3358-000 AHEF500 RoHS No 05/18/2018 PbFree No 05/18/2018 CoC_RoHS10_RF3358-000_AHEF500 REACH_SVHC Declaration_RF3358-000 (AHEF500) Yes
Does not Contain
RF3359-000 AHEF750 RoHS No 11/23/2017 PbFree No 11/23/2017 CoC_RoHS10_RF3359-000_(AHEF750) REACH219_Declaration_RF3359-000_(AHEF750) Yes
Does not Contain
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