16VT270U

Ptc Resettable Fuses Overview

The Littelfuse 16VT270U is a PolySwitch resettable PTC fuse from the VT Series, designed for circuit protection. It features a strap package configuration and operates at a maximum voltage of 16V. The device has a hold current (Ih) of 2.7A and a trip current (It) of 4.5A. Maximum current rating is 50A, with a maximum resistance of 0.03 ohms at 25°C. It functions within an ambient temperature range of -40°C to +85°C and withstands operating temperatures up to 125°C.

Ptc Resettable Fuses Feature Summary

• Resettable overcurrent protection utilizing positive temperature coefficient polymer technology
• Strap-style package design for direct board mounting or lead integration
• Automatic recovery function eliminates need for manual replacement after fault clearance

Ptc Resettable Fuses Applications

• Portable electronic device battery pack protection
• USB port overcurrent safeguarding
• Low-voltage DC circuit protection in consumer electronics

Ptc Resettable Fuses Procurement Notes

Verify component authenticity through authorized Littelfuse distributors. Confirm RoHS compliance status and lead-free soldering compatibility prior to integration. Note that this specific part number is listed as no longer manufactured; assess availability of end-of-life inventory or qualified alternatives for production continuity.

Ptc Resettable Fuses Selection Notes

Select based on 16V system voltage and 2.7A continuous load requirements. Ensure ambient operating conditions remain within specified thermal limits. Consider physical space constraints due to strap package dimensions. Validate that fault current levels do not exceed the 50A maximum rating to prevent device damage.

Ptc Resettable Fuses Part Context

Part of the Littelfuse VT Series PolySwitch family, engineered for compact low-voltage applications. This series emphasizes fast response times and high cycle life for repeated fault events. The strap form factor distinguishes it from standard radial or surface-mount variants, offering flexible interconnection options for custom harnesses.

Ptc Resettable Fuses Replacement Considerations

No public confirmed substitute part numbers are available in official documentation. As the component is discontinued, evaluate equivalent VT Series parts with matching voltage and current ratings for functional substitution.