SMD2920P300TSA/15

Ptc Resettable Fuses Overview

The Littelfuse SMD2920P300TSA/15 is a surface-mount PolySwitch resettable PTC device designed for overcurrent protection. It belongs to the 2920L series, featuring a hold current of 3.0 A and a trip current of 6.0 A. The component supports a maximum voltage of 15 VDC with a maximum fault current rating of 40 A. Its low resistance of 85 mOhms minimizes power loss during normal operation. The device operates within a temperature range of -40°C to +85°C and utilizes an SMD/SMT package.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault conditions without manual replacement
• Increases internal resistance upon heating to limit excessive current flow
• Offers reliable overcurrent protection for sensitive PCB components and integrated circuits

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Circuit safeguarding in battery-powered equipment
• Protection for LED arrays and lighting systems
• Surge protection in AC-DC and DC-DC power adapters

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'A' against official Littelfuse documentation to confirm its impact on specifications or compliance status. Ensure compatibility with standard reflow soldering profiles and check moisture sensitivity levels (MSL) prior to assembly. Confirm that the 15VDC rating aligns with the target circuit's operating voltage requirements.

Ptc Resettable Fuses Selection Notes

Select this component when a 3.0 A hold current and 15 VDC rating are required for surface-mount applications. Consider the 85 mOhms resistance for efficiency needs and the 2920 footprint for board space constraints. Evaluate the 40 A fault current capability against potential short-circuit scenarios in the design.

Ptc Resettable Fuses Part Context

This part is part of the Littelfuse PolySwitch family, which uses polymer positive temperature coefficient technology. These devices serve as reusable alternatives to traditional fuses, offering cost-effective protection for various electronics. The 2920 form factor provides a balance between current handling capacity and compact size for modern PCB designs.

Ptc Resettable Fuses Replacement Considerations

Cross-reference with other 2920 series parts such as 2920L300DR for similar electrical characteristics. Verify that substitute components match the 3.0 A hold current, 15 VDC rating, and SMD package dimensions to ensure functional equivalence.