AHRL1100

Ptc Resettable Fuses Overview

The Littelfuse AHRL1100 is a high-current polymer PTC resettable fuse designed for PCB mounting. It features radial leads with a 10.9 mm spacing and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a hold current of 11 A, trip current of 22 A, maximum voltage of 16 VDC, and a maximum rated current of 100 A. The device has an initial resistance of 3.8 mOhms and meets AEC-Q200 automotive qualification standards.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection through self-resetting functionality after fault clearance
• Automotive-grade reliability certified under AEC-Q200 standards
• High current handling capability suitable for demanding power applications

Ptc Resettable Fuses Applications

• Automotive electronic systems requiring overcurrent protection
• Power distribution circuits in vehicles
• Battery management system protection

Ptc Resettable Fuses Procurement Notes

Verify the specific datasheet version and AEC-Q200 certification status directly with Littelfuse or authorized distributors before procurement. Confirm that the lead time and packaging quantities align with production schedules. Ensure the component matches the required hold and trip currents for the target application circuit design.

Ptc Resettable Fuses Selection Notes

Select this component when an automotive-qualified, high-current resettable fuse is required for 16V DC systems. Compare the 11A hold current against the normal operating load to ensure reliable performance without nuisance tripping. Verify that the 100A maximum current rating exceeds potential fault currents in the protected circuit branch.

Ptc Resettable Fuses Part Context

The AHRL1100 belongs to the AHRL series of high-current PPTC devices from Littelfuse. This series is engineered for robust protection in automotive and industrial environments where standard fuses are impractical due to replacement requirements. It complements other AHRL variants offering different current ratings within the same form factor.

Ptc Resettable Fuses Replacement Considerations

Cross-reference with other AHRL series parts like AHRL1400 or AHRL450 if current ratings differ. Verify equivalent AEC-Q200 qualification and physical dimensions (10.9mm lead spacing) for direct board replacement.