VTP170XSF

Ptc Resettable Fuses Overview

The VTP170XSF is a resettable fuse (PPTC) from the Littelfuse VTP series, designed for strap mount installation with axial termination. It features a hold current of 1.7 A and a trip current of 3.4 A, operating within a maximum voltage of 16 V. The device has a maximum fault current rating of 100 A and an initial resistance of 52 mΩ. It functions reliably across a temperature range of -40°C to +85°C, with a power dissipation rating of 1 W. Physical dimensions include a length of 17.5 mm and a height of 0.8 mm.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic reset functionality upon cooling after fault clearance.
• Designed for strap mount installation using axial leads for secure circuit integration.
• Utilizes polymer positive temperature coefficient material to limit current flow during fault conditions.

Ptc Resettable Fuses Applications

• LED assembly circuit protection
• Portable electronic devices
• Battery pack management systems

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'XSF' against the official Littelfuse datasheet to confirm packaging configuration and tape-and-reel specifications. Ensure the selected component matches the required axial lead style and strap mount compatibility for your PCB layout. Cross-reference the RoHS compliance status with the latest manufacturer documentation before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when a low-profile, strap-mount PPTC fuse is required for circuits operating at 16 V or less. The 1.7 A hold current makes it suitable for protecting sensitive loads that draw steady currents below this threshold. Consider the 52 mΩ resistance for minimal voltage drop impact in low-voltage applications requiring precise current limiting.

Ptc Resettable Fuses Part Context

The VTP170XSF belongs to the VTP series of resettable fuses, which are characterized by their compact form factor and strap mount capability. This series is engineered for applications where space constraints and reliable overcurrent protection are critical. The axial lead design facilitates easy integration into various electronic assemblies while maintaining robust mechanical stability.

Ptc Resettable Fuses Replacement Considerations

Consult the Littelfuse VTP series cross-reference guide for direct substitutes. Verify that any alternative part maintains the same 1.7 A hold current, 16 V rating, and strap mount package type to ensure functional equivalence.

Ptc Resettable Fuses FAQ

What is the maximum fault current the VTP170XSF can withstand?

The VTP170XSF has a maximum fault current (Imax) rating of 100 A.

Does the VTP170XSF require manual replacement after tripping?

No, it is a resettable fuse that automatically returns to its low-resistance state once the fault is removed and the device cools down.