RXE160

Ptc Resettable Fuses Overview

The Littelfuse RXE160 is a resettable polymer positive temperature coefficient (PPTC) device designed for overcurrent protection in electronic circuits. It functions as a self-resetting fuse, providing reliable safeguarding against excessive current conditions without requiring replacement after tripping. This component is engineered to maintain circuit integrity by increasing resistance significantly when heated by fault currents, thereby limiting current flow until the power source is removed and the device cools down.

Ptc Resettable Fuses Feature Summary

• Self-resetting functionality eliminates the need for manual replacement after overcurrent events
• Polymer construction provides rapid response to fault conditions through thermal activation
• Compact form factor suitable for space-constrained printed circuit board layouts

Ptc Resettable Fuses Applications

• Overcurrent protection for portable consumer electronics
• Safeguarding battery packs in mobile devices
• Circuit protection in automotive infotainment systems
• Protection of USB ports and data interfaces

Ptc Resettable Fuses Procurement Notes

Verify the specific holding current and trip current ratings required for your application against the official datasheet specifications. Ensure the voltage rating matches the system operating voltage. Confirm package type availability and lead times with authorized distributors. Check for RoHS compliance status if environmental regulations apply to your manufacturing process. Validate that the thermal characteristics align with your PCB layout and ambient temperature conditions.

Ptc Resettable Fuses Selection Notes

Select the RXE160 based on the maximum operating voltage and continuous current requirements of the target circuit. Consider the time-current characteristics to ensure proper coordination with upstream fuses or breakers. Evaluate the ambient temperature range to guarantee reliable operation under all expected conditions. Assess the physical size constraints to determine if this package fits within the design envelope. Review the recovery time specifications to ensure they meet system uptime requirements.

Ptc Resettable Fuses Part Context

This component belongs to Littelfuse's family of resettable fuses, which are widely used in modern electronics for cost-effective overcurrent protection. Unlike traditional one-time fuses, these devices offer a sustainable solution by automatically restoring function after a fault clears. They are integral to protecting sensitive components in high-volume consumer and industrial applications where maintenance access is limited.

Ptc Resettable Fuses Replacement Considerations

When replacing an existing PPTC device, match the voltage rating, holding current, and trip current closely. Verify that the new part's physical dimensions fit the existing footprint. Ensure the thermal performance characteristics are compatible with the surrounding components. Consult the manufacturer's substitution guide for officially confirmed equivalent parts.