MICROSMD380LR-2

Overview

The MICROSMD380LR-2 is a PolySwitch resettable PPTC fuse from the microSMD series by Littelfuse. It features a 6 VDC maximum voltage rating and a 0.35 A hold current. The trip current is specified at 700 mA with a typical trip time of 0.2 seconds. The device has a low resistance of 14 mOhms and a power dissipation of 1 W. It is housed in a compact 0603 (1608 metric) surface mount package, measuring 1.65 mm in length, 0.80 mm in width, and 0.55 mm in height. Operating temperatures range from -40°C to +85°C.

Feature Summary

• Provides overcurrent protection through automatic circuit interruption upon thermal activation.
• Features ultra-low on-resistance for minimal signal loss and reduced power consumption.
• Offers a compact footprint suitable for high-density PCB layouts.

Applications

• Portable electronic devices
• Battery packs
• USB peripheral protection

Procurement Notes

Verify component authenticity using official Littelfuse documentation. Confirm that the specific suffix matches the required electrical parameters. Check for moisture sensitivity handling requirements during storage and assembly. Ensure compliance with RoHS directives if applicable to your manufacturing process.

Selection Notes

Select this component when space constraints require an ultra-small form factor. Choose based on the 0.35 A hold current requirement for low-power circuits. Consider the 6 VDC rating for compatibility with low-voltage systems. Evaluate the 14 mOhms resistance for impact on circuit efficiency.

Part Context

This part belongs to the microSMD family of resettable fuses. It complements other Littelfuse SMD protection devices like nanoSMD and miniSMDC series. The product line focuses on providing reliable circuit protection in miniature packages for modern electronics.

Replacement Considerations

MICROSMD380F-2

FAQ

What is the maximum operating temperature?

The maximum operating temperature is +85°C.

Is this component lead-free?

Yes, it complies with RoHS standards.