HVR250P080CFF

Ptc Resettable Fuses Overview

The Littelfuse HVR250P080CFF is a high-voltage polymer positive temperature coefficient (PTC) resettable fuse designed for radial through-hole mounting. It features an 80 mA hold current and a 160 mA trip current, operating within a voltage range of up to 60 VDC with a maximum interrupt rating of 250 VAC/VDC. The device exhibits a minimum initial resistance of 8 Ohms and a maximum post-trip resistance of 16 Ohms, with a typical trip time of 700 ms. It operates reliably across a temperature range of -40°C to +85°C and carries cURus and TUV certifications.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection against overcurrent conditions without requiring manual replacement after fault clearance.
• Engineered for high-voltage applications with dual ratings supporting both low and high voltage DC systems.
• Constructed from halogen-free polymer materials ensuring compliance with environmental standards.

Ptc Resettable Fuses Applications

• Protection of lithium-ion battery packs in portable electronics
• Overcurrent safeguarding in telecommunications power supplies
• Circuit protection for automotive electronic control units

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix code on the component marking to confirm the exact electrical characteristics and package variant. Ensure that the application environment remains within the specified thermal limits to maintain reliable tripping performance. Confirm that the required holding current aligns with the system's normal operating load to prevent nuisance tripping during startup or peak usage phases.

Ptc Resettable Fuses Selection Notes

Select this component when designing circuits requiring resettable protection for high-voltage DC rails where space constraints preclude traditional fuses. Consider the maximum operating voltage and the expected fault current levels to ensure the device can safely interrupt the circuit. Evaluate the ambient temperature conditions to verify that the hold current derating curves do not compromise circuit functionality under worst-case thermal scenarios.

Ptc Resettable Fuses Part Context

This device belongs to the HVR250 series of high-voltage PTC resettable fuses from Littelfuse. The series is characterized by its ability to handle higher voltages compared to standard polyfuse devices while maintaining a compact radial leaded form factor suitable for through-hole PCB assembly technologies.

Ptc Resettable Fuses Replacement Considerations

Direct replacements must match the 60V/250V rating, 80mA hold current, and radial package dimensions. Verify that substitute components offer equivalent trip times and resistance values to ensure identical circuit protection behavior.