FRU185-30F

Ptc Resettable Fuses Overview

The FRU185-30F is a radial leaded PTC resettable fuse from the FRU series by RFE/Fuzetec. It features a holding current of 1.85A and a trip current of 3.7A, rated for a maximum voltage of 30V. The device supports a maximum fault current of 100A and dissipates up to 1W of power. Key electrical parameters include an initial resistance of 30mΩ and a maximum resistance of 90mΩ after tripping. The time to trip is specified at 8.7 seconds under standard conditions. It operates within a temperature range of -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic resistance increase upon thermal activation
• Utilizes polymer positive temperature coefficient technology for reliable circuit interruption
• Designed with radial leads for straightforward through-hole mounting applications

Ptc Resettable Fuses Applications

• Battery pack protection circuits
• Consumer electronics power input lines
• Automotive electronic module safeguarding

Ptc Resettable Fuses Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm RoHS compliance status if required for specific regulatory environments. Ensure the supplier provides valid traceability documentation. Cross-reference part numbers carefully to avoid confusion with similar series variants that may have different voltage or current ratings.

Ptc Resettable Fuses Selection Notes

Select this component when a low-voltage, high-current resettable fuse is required for through-hole PCB designs. Consider the 30V rating limit and 1.85A holding current to ensure proper circuit coordination. Evaluate the thermal environment to guarantee the -40°C to +85°C operating range remains sufficient for the application's ambient conditions.

Ptc Resettable Fuses Part Context

This part belongs to the FRU series of radial leaded PTC resettable fuses manufactured by Fuzetec Technology. The series is designed for general-purpose overcurrent protection in various electronic assemblies. The FRU185-30F specifically addresses needs for moderate current levels with robust fault handling capabilities.

Ptc Resettable Fuses Replacement Considerations

The PTR030V0185-BK1 is identified as a direct substitute that meets equivalent electrical and mechanical requirements. Verify lead spacing compatibility, which is 0.201 inches (5.10mm), before implementation.