AHRL1500

Ptc Resettable Fuses Overview

The Littelfuse AHRL1500 is a radial-leaded PolySwitch resettable PPTC fuse designed for PCB mounting. It features a hold current of 15 A and a trip current of 33 A at a maximum voltage rating of 16 VDC. The device has a minimum operating temperature of -40°C and a maximum operating temperature of +125°C, with a lead spacing of 10.9 mm. It carries AEC-Q200 qualification and offers a maximum fault current rating of 100 A.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection for automotive circuits through solid-state polymer technology that increases resistance upon heating.
• Features radial leads for secure PCB mounting with standardized lead spacing to facilitate automated assembly processes.
• Meets AEC-Q200 qualification standards to ensure reliability in demanding automotive electronic environments.

Ptc Resettable Fuses Applications

• Protection of actuators and small motors in commercial and passenger vehicles
• Overcurrent safeguarding for vehicle screens and display systems
• Circuit protection within wiring harnesses and PCB components

Ptc Resettable Fuses Procurement Notes

Verify the specific datasheet revision and AEC-Q200 certification status directly with Littelfuse or authorized distributors before integration. Confirm that the 16 VDC maximum voltage rating aligns with the target circuit's operational requirements. Ensure the radial lead pitch matches the printed circuit board layout specifications to prevent mechanical installation errors during assembly.

Ptc Resettable Fuses Selection Notes

Select this component when high-current protection up to 15 A is required in low-voltage automotive applications. Compare against the AHRL1400 for lower current needs or the AHRF1500 if higher temperature performance is necessary. Evaluate the 100 A fault current rating against potential short-circuit scenarios to ensure adequate safety margins for the protected load.

Ptc Resettable Fuses Part Context

The AHRL1500 belongs to the AHRL series of PolySwitch resettable fuses from Littelfuse. This series is engineered specifically for automotive electronics, offering robust protection against overcurrent events. The radial leaded form factor distinguishes it from surface-mount alternatives, providing a cost-effective solution for through-hole PCB designs in compact automotive modules.

Ptc Resettable Fuses Replacement Considerations

The AHRL1400 serves as a verified substitute within the same AHRL series for applications requiring a 14 A hold current. Both devices share identical physical dimensions, lead spacing, and AEC-Q200 qualification, ensuring direct interchangeability in existing PCB layouts without redesign.