SMD2920P050TSA

Ptc Resettable Fuses Overview

The Littelfuse SMD2920P050TSA is a POLY-FUSE resettable PPTC device in the Low Rho series, designed for surface mount applications. It features a hold current of 0.5 A and a maximum voltage rating of 60 VDC. The trip current is specified at 1.0 A, with a maximum fault current rating of 40 A. The device exhibits a maximum resistance of 0.3 Ohms and a power dissipation capacity of 2 W. It operates within a temperature range of -40°C to +85°C and is housed in a 2920 (7450 metric) package.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection through polymer positive temperature coefficient technology
• Features ultra-low internal resistance to minimize voltage drop in high-current circuits
• Offers a very thin profile and miniature size to optimize board space utilization

Ptc Resettable Fuses Applications

• Overcurrent protection for general electronics circuits
• Protection of battery packs from short circuits and overcharging
• Guarding portable devices against excessive current events

Ptc Resettable Fuses Procurement Notes

Verify that the specific suffix TSA matches the required reel or cut tape packaging configuration for your assembly line. Confirm RoHS compliance status and moisture sensitivity level requirements before finalizing procurement orders. Ensure the selected variant aligns with the intended thermal management strategy for the target application environment.

Ptc Resettable Fuses Selection Notes

Select this component when circuit design requires a low-profile solution with minimal voltage drop under normal operating conditions. The 0.5 A hold current suits applications needing precise current limiting without nuisance tripping during transient spikes. Consider the 60 VDC rating for compatibility with standard low-voltage DC power systems.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse POLY-FUSE Low Rho SMD series, which specializes in providing higher hold currents within smaller form factors compared to standard PPTC devices. The 2920 package size allows for significant board space savings while maintaining robust electrical performance characteristics suitable for modern compact electronic designs.

Ptc Resettable Fuses Replacement Considerations

Cross-reference with other 2920 package PPTCs having equivalent 0.5 A hold current and 60 VDC ratings. Verify that substitute parts match the 0.3 Ohm maximum resistance and 2 W power dissipation limits to ensure identical thermal and electrical behavior in the protected circuit.