LR4-260F

Ptc Resettable Fuses Overview

The Littelfuse LR4-260F is a PolySwitch resettable PTC device designed for strap battery applications. It features a hold current of 2.6A and trip current of 5.2A, with a maximum voltage rating of 60V. The component has a resistance of 1.3 ohms and an interrupting capacity of 100A. Its physical dimensions are 2.69mm in width, 3.15mm in height, and 6.1mm in depth. It operates within a temperature range of -55°C to 125°C.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic reset functionality upon cooling after fault removal.
• Designed specifically for use in strap battery configurations within electronic circuits.
• Constructed with a ceramic body and silver-plated brass terminals for reliable electrical connections.

Ptc Resettable Fuses Applications

• Strap battery circuit protection
• Portable electronics power management
• Battery pack overcurrent safeguarding

Ptc Resettable Fuses Procurement Notes

Verify the specific package type and terminal configuration against the official Littelfuse datasheet before integration. Confirm that the thermal environment supports the specified operating temperature range. Ensure the application current remains below the hold current threshold during normal operation to prevent nuisance tripping. Cross-reference the interrupting rating with potential fault currents in the system design.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable fuse is required for low-voltage battery applications. The 2.6A hold current suits moderate load requirements. Consider the 1.3 ohm initial resistance impact on circuit efficiency. The compact surface-mount form factor aids in space-constrained PCB layouts. Evaluate the thermal dissipation capabilities of the surrounding board material.

Ptc Resettable Fuses Part Context

This part belongs to the PolySwitch resettable device family from Littelfuse. These devices utilize polymer positive temperature coefficient technology. They serve as alternative solutions to traditional one-time fuses in various consumer and industrial electronics. The series emphasizes reliability and reusability in overcurrent scenarios.

Ptc Resettable Fuses Replacement Considerations

Consult Littelfuse documentation for direct substitutes. Similar parts include other LR4 series variants with different current ratings. Verify compatibility regarding voltage rating and physical footprint before substitution.

Ptc Resettable Fuses FAQ

What is the typical response time of the LR4-260F?

The datasheet does not specify a precise trip time value; it depends on the magnitude of the overcurrent and ambient temperature.

Is the LR4-260F RoHS compliant?

Yes, the component is certified as lead-free and halogen-free, complying with RoHS standards.