0603L050SLYR

Overview

The Littelfuse 0603L050SLYR is a surface-mount polymer positive temperature coefficient (PPTC) resettable fuse from the Low Rho series. It provides overcurrent protection with a hold current of 500 mA and a trip current of 1 A at a maximum voltage of 6 VDC. The device features an initial resistance of 680 mOhms and a maximum post-trip resistance of 400 mOhms, with a power dissipation rating of 500 mW. It supports a maximum fault current of 40 A and operates within a temperature range of -40°C to +85°C in a compact 0603 package.

Feature Summary

• Ultra-low internal resistance for minimal voltage drop
• Automatic resettable protection mechanism
• Compatible with high-temperature soldering processes

Applications

• USB peripherals including USB 3.0/2.0 ports
• Li-ion and Li-Polymer battery packs
• Smartphones and tablet computers
• Digital cameras and video recording devices

Procurement Notes

Verify the specific suffix 'YR' against the manufacturer's official datasheet to confirm packaging configuration and RoHS compliance status. Ensure the selected component matches the required hold current and voltage ratings for the target circuit design before integration.

Selection Notes

Select this component when ultra-low resistance is critical to maintain signal integrity or minimize power loss in low-voltage circuits. The 0603 form factor offers space savings compared to standard PPTCs while maintaining high hold currents suitable for portable electronics.

Part Context

This part belongs to the Low Rho SMD PolySwitch series, designed for general electronics overcurrent protection. The series allows higher hold currents in smaller footprints than standard PPTCs, featuring UL and TUV recognition with a maximum fault current rating of 50A across the family.

Replacement Considerations

Direct substitute: 0603L050SLKR.