SMD0805P050TFA

Ptc Resettable Fuses Overview

The Littelfuse SMD0805P050TFA is a PolySwitch resettable fuse in the Low Rho SMD series, designed for surface mount applications. It features a maximum voltage rating of 6V and a hold current (Ih) of 500mA. The device trips at 1A with a typical trip time of 100ms. It offers ultra-low internal resistance and a thin profile within an 0805 package. Maximum fault current capability is 50A. This polymer positive temperature coefficient device provides automatic resettable overcurrent protection for sensitive electronics.

Ptc Resettable Fuses Feature Summary

• Ultra-low internal resistance minimizes voltage drop
• Automatic resettable protection mechanism
• Miniature size saves board space
• Compatible with high temperature soldering processes

Ptc Resettable Fuses Applications

• Overcurrent protection for handheld electronics
• Circuit protection in LED arrays
• Protection for networking equipment ports
• Safety circuits in AC-DC power adapters

Ptc Resettable Fuses Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or direct manufacturer channels. Confirm that the specific suffix 'TFA' matches the required tape and reel packaging specifications for automated assembly lines. Ensure storage conditions comply with moisture sensitivity levels to maintain solderability and electrical performance prior to installation.

Ptc Resettable Fuses Selection Notes

Select this component when circuit requirements demand a low voltage rating of 6V or less. The 500mA hold current must exceed normal operating current while remaining below the 1A trip threshold. Consider the Low Rho series benefits for applications requiring minimal power loss. Validate thermal management capabilities as self-heating affects trip characteristics in confined spaces.

Ptc Resettable Fuses Part Context

This part belongs to the Low Rho SMD PolySwitch series by Littelfuse Inc., which specializes in circuit protection technologies. The series is engineered for general electronics overcurrent protection where ultra-low internal resistance and voltage drop are critical. It complements other surface mount fuses like FLAT PAK and NANO 2 products within the manufacturer's portfolio.

Ptc Resettable Fuses Replacement Considerations

Cross-reference with other SMD0805Pxxxxx variants from Littelfuse for different current ratings. Verify compatibility with equivalent polymeric PTC devices from other manufacturers if supply constraints exist. Ensure replacement parts maintain identical voltage ratings and package dimensions for direct PCB substitution.