RHE070

Ptc Resettable Fuses Overview

The Littelfuse RHE070 is a resettable polymeric positive temperature coefficient (PPTC) device belonging to the RHE series. Designed for PCB mounting with radial termination, it provides overcurrent protection in electronic circuits. The component features a hold current of 700 mA and a trip current of 1.4 A, ensuring reliable operation under normal conditions while responding to fault currents. It supports a maximum voltage of 30 V and offers a high rated interrupting current of 40 A. With an initial resistance of 800 mOhms, it balances low power loss with effective circuit protection. The device operates within a temperature range of -40°C to +125°C and is available in cut tape or reel packaging.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection using polymeric PPTC technology
• Features radial leaded termination for standard PCB mounting applications
• Responds to overcurrent conditions by increasing resistance to limit current flow

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Protection of battery packs and power supply circuits
• Surge protection in communication equipment interfaces

Ptc Resettable Fuses Procurement Notes

Verify the specific part number suffix against official Littelfuse documentation to confirm package type and tolerance. Ensure the selected variant matches the required hold and trip current specifications for the target application. Confirm RoHS compliance status through the manufacturer's datasheet before procurement.

Ptc Resettable Fuses Selection Notes

Select the RHE070 based on the circuit's nominal operating current and maximum voltage requirements. The 700 mA hold current must exceed the normal load current, while the 1.4 A trip current should align with the desired protection threshold. Consider the ambient temperature range and PCB space constraints when evaluating the radial package dimensions.

Ptc Resettable Fuses Part Context

The RHE070 is part of the RHE series of resettable fuses manufactured by Littelfuse Inc. This series utilizes proprietary polymeric materials to create self-resetting protection devices. These components serve as alternatives to traditional one-time fuses, offering reusable protection in consumer electronics and industrial applications where maintenance access is limited.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.