Andrew
Andrew Content Marketer
On Jan 22, 2026

RXEF010 Resettable Fuses – Smart Overcurrent Protection


The Resettable Fuses - PPTC RXEF010 by Littelfuse are advanced polymer positive temperature coefficient (PPTC) devices designed to protect electronic circuits from overcurrent and short-circuit conditions. These fuses automatically reset after the fault is cleared, eliminating the need for manual replacement and reducing maintenance costs.

Engineers implementing reliable bold: Circuit Protection, Thermistors, Resettable Fuses - PPTC solutions rely on RXEF010 for consistent electrical safety and long-term reliability.

Available from www.xonelec.com — also recognized globally as X-On Electronics and XON Electronics — these components support robust protection across consumer, industrial, and automotive electronics.


Technical Specifications of RXEF010


Manufacturer: Littelfuse
Part Number: RXEF010
Product Type: PPTC Resettable Fuse
Hold Current: Industry-standard rating
Trip Current: Optimized overcurrent response
Maximum Voltage: Suitable reminding voltage
Resistance: Low initial resistance
Response Time: Fast thermal trip behavior
Mounting Type: Through Hole

Engineered for professional bold: Circuit Protection, Thermistors, Resettable Fuses - PPTC, this device delivers dependable fault protection and automatic reset functionality.


Key Features of RXEF010 Resettable Fuses


  • Automatic reset after fault removal

  • Low resistance during normal operation

  • Fast response to overcurrent conditions

  • Long cycle life and durability

  • Compact and easy PCB integration

These features make it ideal for systems requiring dependable bold: Circuit Protection, Thermistors, Resettable Fuses - PPTC performance.


Applications of RXEF010


The RXEF010 is widely used in:

  • Consumer electronics protection

  • USB and interface ports

  • Battery packs and chargers

  • Industrial control electronics

  • Telecommunications equipment

  • Automotive electronic modules

It integrates seamlessly into designs that depend on reliable bold: Circuit Protection, Thermistors, Resettable Fuses - PPTC for operational safety.


Wiring and Installation Overview


Through-Hole Mounting Guidelines

  • Install in series with the protected load.

  • Maintain adequate spacing for heat dissipation.

  • Avoid excessive soldering temperature exposure.

  • Ensure correct current rating selection.

Proper installation ensures optimal protection and device longevity.


Use Case Scenario


USB Power Port Protection

Scenario: A product designer needed overcurrent protection for USB charging ports.
Challenge: Preventing damage during accidental short circuits.
Solution: RXEF010 automatically tripped during faults and reset afterward.
Result: Improved user safety and reduced service requirements.


Download Datasheet


For detailed electrical ratings, trip curves, environmental specifications, and mounting dimensions, download the official datasheet from the manufacturer or authorized distributors.

RXEF010 Datasheet


Why Buy from XON Electronics?


  • Genuine Littelfuse components

  • Global inventory availability

  • Fast international shipping

  • Competitive bulk pricing

  • Professional technical support

Order confidently from www.xonelec.com — trusted worldwide as X-On Electronics and XON Electronics.


Conclusion


The RXEF010 Resettable Fuses - PPTC by Littelfuse deliver smart overcurrent protection, automatic reset capability, and long operational life. They are ideal for modern electronic devices requiring maintenance-free protection.


FAQs – RXEF010 Resettable Fuses


Q1. What happens when RXEF010 trips?
It increases resistance to limit current and protects the circuit.

Q2. Does it reset automatically?
Yes, once the fault is removed and temperature cools.

Q3. Is it reusable?
Yes, it supports thousands of reset cycles.

Q4. What mounting type does it use?
It uses through-hole mounting.

Q5. Where can I buy RXEF010?
It is available from authorized electronic distributors.




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