RHE750

Ptc Resettable Fuses Overview

The Littelfuse RHE750 is a radial lead polymeric positive temperature coefficient (PPTC) resettable fuse designed for circuit protection. It belongs to the RHE series and features a hold current of 7.5 A with a trip current of 13.1 A. The device supports a maximum voltage of 16 VDC and offers a maximum rated current of 100 A. Its resistance is specified at 22 mΩ, and it operates within a temperature range of -40°C to +125°C. The component utilizes a PCB mount style with a 5.8 mm lead spacing and measures 3 mm in height.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection via PPTC technology
• Designed for radial through-hole PCB mounting applications
• Operates reliably across an extended industrial temperature range

Ptc Resettable Fuses Applications

• Overcurrent protection for low-voltage DC power distribution circuits
• Protection of portable electronic devices and battery packs
• Surge and fault protection in automotive electronics systems

Ptc Resettable Fuses Procurement Notes

Verify that the specific order matches the Littelfuse manufacturer number RHE750 to ensure correct electrical characteristics. Confirm the package type is radial lead and the hold current aligns with the 7.5 A specification required by the design. Check RoHS compliance status if environmental regulations apply to the final assembly. Ensure the maximum voltage rating of 16 VDC is sufficient for the target circuit application before procurement.

Ptc Resettable Fuses Selection Notes

Select this component when a self-resetting protection mechanism is preferred over traditional fuses in low-voltage environments. The 7.5 A hold current makes it suitable for moderate load applications where occasional transient surges may occur without permanent interruption. Consider the 22 mΩ initial resistance for minimal impact on circuit efficiency. Verify that the 16 VDC maximum voltage rating exceeds the system's operating voltage to prevent dielectric breakdown during fault conditions.

Ptc Resettable Fuses Part Context

This part belongs to the RHE series of resettable fuses from Littelfuse, which are engineered for compact circuit protection solutions. The RHE series components utilize polymer technology to provide reliable performance in space-constrained designs. They serve as alternatives to one-time-use fuses, offering convenience and cost savings in applications requiring frequent maintenance or inaccessible locations. The radial lead configuration facilitates easy integration into standard printed circuit board layouts.

Ptc Resettable Fuses Replacement Considerations

Consult official Littelfuse documentation for direct cross-reference data. Generic replacements must match the 7.5 A hold current, 16 VDC voltage rating, and radial package dimensions to ensure functional compatibility.