AHRF Series - 16V PolySwitch Automotive High-Temperature Lead-Free Radial Leaded Resettable PPTC

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Disclaimer Notice

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.

Helping to reduce weight of wire harnesses, PPTC devices distributed in a circuit can allow the use of smaller wire sizes with the resulting harnesses. Forego looping back and forth around a fuse box and place your protection wherever you see fit. The solid state composition of PPTC devices helps provide reliability.


  • ROHS compliant
  • Products meet applicable automotive industry standards
  • Compatible with high-volume electronics assembly

High Performance

  • Expertise from the world’s leading resettable overcurrent protection manufacturer
  • Wide range of dedicated automotive surface-mount and radial-leaded resettable overcurrent devices
  • High performance transient voltage protection devices

Automotive and Industrial Transportation

  • Actuators and medium motors
  • Trace protection
  • Harness/junction box protection
  • Powered outputs
  • Electronic control modules
  • Telematics/Infotainment

Access specifications, certifications, check availability and order parts below

Catalog #IHold (A)ITRIP
RaMAX (Ω)Max
Trip Time
Pd Typical (watts)Max Operating Temp (°C)Packaging
AHRF0500.51400.351.11.13300.985BagProduct SpecificationCheck
AHRF0700.71.4400. SpecificationCheck
AHRF10011.9400.150.430.436.2301.485BagProduct SpecificationCheck
AHRF10001020.51000.00510.0150.01510.5165.3125BagProduct SpecificationCheckOrder
AHRF1000-21020.51000.00510.0150.01510.5165.3125Tape & ReelProduct SpecificationCheck
AHRF11001121.21000.00480.0130.01311165.585BagProduct SpecificationCheckOrder
AHRF130013271000.00340.010.0115166.9125|85Bulk|BagProduct SpecificationCheck
AHRF1300-213271000.00340.010.0115166.9125|85Tape & ReelProduct SpecificationCheck
AHRF14001428.31000.00290.0090.00915.5166.985BagProduct SpecificationCheckOrder
AHRF150015331000.00270.00920.009220167125BagProduct SpecificationCheckOrder
AHRF20023.81000.0390.110.114.8161.485BagProduct SpecificationCheckOrder
AHRF200-223.81000.0390.110.114.8161.485Tape & ReelProduct SpecificationCheck
AHRF30036.51000.0290.0790.079516385BagProduct SpecificationCheck
AHRF40047.41000.0210.060.065163.385BagProduct SpecificationCheckOrder
AHRF4504.58.71000.0170.0540.0544163.6125Bag|BulkProduct SpecificationCheckOrder
AHRF450-24.58.71000.0170.0540.0544163.6125|85Tape & ReelProduct SpecificationCheck
AHRF450S-14.58.71000.0170.0540.0544163.685BagProduct SpecificationCheck
AHRF5505.5101000.0130.0370.0376163.585BagProduct SpecificationCheckOrder
AHRF6006121000.010.0320.0326.5164.185|125Bulk|BagProduct SpecificationCheck
AHRF600-26121000.010.0320.0326.5164.185|125Tape & ReelProduct SpecificationCheck
AHRF6506.513.71000.0090.0260.0267164.3125BagProduct SpecificationCheckOrder
AHRF650-26.513.71000.0090.0260.0267164.3125|85Tape & ReelProduct SpecificationCheck
AHRF700713.11000.00870.0250.025716485BagProduct SpecificationCheckOrder
AHRF7507.514.81000.00740.0220.0228164.585|125Bag|BulkProduct SpecificationCheckOrder
AHRF750-27.514.81000.00740.0220.0228164.5125Tape & ReelProduct SpecificationCheck
AHRF8008151000.00720.020.028164.285BagProduct SpecificationCheckOrder
AHRF800-28151000.00720.01350.028N/A164.2125Tape & ReelProduct SpecificationCheck
AHRF900918.51000.00610.0170.01711.516585|125Bag|BulkProduct SpecificationCheckOrder