RHEF750-2

Ptc Resettable Fuses Overview

The Littelfuse RHEF750-2 is a PolySwitch resettable fuse from the RHEF series, designed for PCB mounting with radial termination. It features a hold current of 7.5 A and a trip current of 13.1 A at ambient conditions. The device supports a maximum voltage of 16 VDC and offers a maximum rated current of 100 A. Its initial resistance is 22 mΩ. The component operates within a temperature range of -40°C to +125°C, with a lead spacing of 5.8 mm. Physical dimensions include a height of 3 mm.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection through self-resetting polymer technology
• Designed for surface or through-hole PCB integration via radial leads
• Maintains stable electrical characteristics across wide thermal operating ranges

Ptc Resettable Fuses Applications

• Overcurrent protection in consumer electronics assemblies
• Industrial control board circuit safeguarding
• Automotive electronic module protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix designation against official Littelfuse documentation to confirm exact package configuration and tape/reel specifications. Ensure that the selected variant matches the required hold and trip current parameters for the target application circuit design.

Ptc Resettable Fuses Selection Notes

Select this component based on the required 7.5 A hold current and 16 VDC maximum voltage rating. Consider the 22 mΩ initial resistance and thermal derating curves when designing for high-current environments. Confirm compatibility with the 5.8 mm lead spacing for PCB layout constraints.

Ptc Resettable Fuses Part Context

This part belongs to the RHEF series of PolySwitch resettable fuses manufactured by Littelfuse. These devices utilize polymer positive temperature coefficient (PPTC) technology to provide reusable overcurrent protection. The series is engineered for applications requiring reliable, space-efficient circuit protection solutions.

Ptc Resettable Fuses Replacement Considerations

Consult official Littelfuse substitution guides for verified equivalent part numbers. Cross-reference hold current, trip current, and voltage ratings to ensure functional compatibility during replacement procedures.