FRU400-30F

Ptc Resettable Fuses Overview

The FRU400-30F is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse belonging to the FRU series. Manufactured by RFE International and Fuzetec, this component functions as a self-resetting overcurrent protector for electronic circuits. It utilizes a conductive polymer composite that increases resistance significantly upon overheating caused by excessive current flow. The device provides protection against short circuits and overloads without requiring replacement after tripping, offering a reliable solution for circuit safeguarding in various electronic applications.

Ptc Resettable Fuses Feature Summary

• Self-resetting overcurrent protection mechanism
• Radial leaded package for through-hole mounting
• Polymeric positive temperature coefficient construction
• Reversible response to fault conditions

Ptc Resettable Fuses Applications

• Overcurrent protection in consumer electronics
• Circuit safeguarding in industrial control systems
• Protection for portable battery-powered devices
• Interface circuit protection in communication equipment

Ptc Resettable Fuses Procurement Notes

Verify manufacturer origin as both RFE International and Fuzetec produce this part number. Confirm datasheet specifications match application requirements for voltage and current ratings. Ensure proper handling during assembly to maintain lead integrity. Check for RoHS compliance status if required by project standards. Validate thermal performance characteristics against system operating conditions before final selection.

Ptc Resettable Fuses Selection Notes

Select based on maximum working voltage and trip current requirements of the protected circuit. Consider ambient temperature effects on holding current performance. Evaluate physical size constraints for PCB layout compatibility. Assess energy absorption capabilities for potential fault scenarios. Verify mounting orientation and spacing requirements for adequate heat dissipation during normal operation.

Ptc Resettable Fuses Part Context

The FRU series represents a line of resettable fuses designed for general-purpose circuit protection. These components serve as alternatives to traditional fusible links by providing automatic recovery after fault clearance. The FRU400-30F variant specifically targets applications requiring moderate current protection levels with reliable reset functionality.

Ptc Resettable Fuses Replacement Considerations

Compatible substitutes include other PPTC devices from manufacturers like Bourns, Littelfuse, or TE Connectivity with matching voltage and current ratings. Ensure equivalent package type and terminal configuration for direct board replacement. Verify that alternative parts meet the same safety certifications and environmental specifications.