RKEF065-AP

Ptc Resettable Fuses Overview

The RKEF065-AP is a PolySwitch resettable fuse from the RKEF series, manufactured by Littelfuse. It features radial leads and is designed for PCB mounting in bulk or reel packaging. The device maintains a holding current of 650 mA and trips at 1.3 A. It supports a maximum voltage of 60 VDC with a maximum interrupting rating of 40 A. Initial resistance is typically low, while post-trip resistance remains within specified limits. Operating temperatures range from -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection through polymer positive temperature coefficient (PPTC) technology that resets after fault clearance.
• Features radial leaded construction suitable for through-hole printed circuit board integration.
• Offers dual-element time-delay characteristics to withstand transient surges while protecting against sustained overcurrent conditions.

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Protection circuits in automotive electronics
• Industrial control system wiring safeguarding
• Consumer appliance power supply inputs

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix AP indicates the Ammo Pack or Reel packaging configuration distinct from standard bulk variants. Confirm the maximum voltage rating aligns with the 60VDC specification rather than higher voltage family members. Ensure the radial lead spacing matches the target PCB footprint requirements before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when a 650 mA holding current and 60 VDC maximum voltage are required for radial PPTC applications. Consider the RKEF series for its dual-element time-delay performance compared to standard single-element fuses. Evaluate the physical dimensions and lead spacing to ensure compatibility with automated assembly processes and available board real estate constraints.

Ptc Resettable Fuses Part Context

This part belongs to the RKEF series of PolySwitch resettable fuses, which are characterized by their dual-element design for enhanced surge tolerance. The series provides reliable overcurrent protection for various electronic circuits. The RKEF065-AP specifically denotes the 650 mA variant within this lineup, distinguished by its specific packaging format and voltage rating parameters defined by Littelfuse.

Ptc Resettable Fuses Replacement Considerations

RXEF065-AP serves as a direct functional substitute within the same manufacturer's portfolio, offering identical electrical ratings but potentially differing in packaging type such as bulk versus tape and reel configurations.