1812L200DR

Ptc Resettable Fuses Overview

The Littelfuse 1812L200DR is a surface-mount PolySwitch resettable fuse from the 1812L series. It provides overcurrent protection with a hold current of 2.0 A and a trip current of 3.5 A. The device supports a maximum voltage of 60 VDC and offers a maximum fault current rating of 100 A. Its typical resistance is 0.04 ohms, operating within a temperature range of -40°C to +85°C. Packaged in cut tape or reel formats, this RoHS-compliant component utilizes a 1812 (4532 metric) SMD package for efficient PCB integration.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault conditions clear without manual replacement
• Offers surface-mount compatibility for automated assembly processes
• Delivers reliable overcurrent protection against short circuits and excessive loads

Ptc Resettable Fuses Applications

• Portable electronic devices requiring compact circuit protection
• Battery packs and power management systems
• Communication equipment and networking hardware
• Industrial control boards and instrumentation

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix DR indicates cut tape or reel packaging configuration as per manufacturer documentation. Confirm RoHS compliance status and halogen-free characteristics match project requirements. Ensure the selected variant aligns with the required hold and trip current specifications for the target application circuit design.

Ptc Resettable Fuses Selection Notes

Select based on the 2.0 A hold current and 60 VDC maximum voltage rating to ensure adequate protection margins. Consider the 0.04 ohm typical resistance for minimal voltage drop impact. Evaluate thermal performance within the -40°C to +85°C operating range. Compare against other 1812L series variants if different current ratings are needed for similar form factors.

Ptc Resettable Fuses Part Context

This component belongs to the 1812L series of PolySwitch resettable fuses designed for surface-mount applications. The series provides robust overcurrent protection in a small footprint suitable for dense PCB layouts. These devices utilize polymer positive temperature coefficient technology to limit current flow during fault conditions while maintaining low resistance during normal operation.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other 1812L series parts with matching electrical ratings such as 1812L200. Verify that alternative components maintain identical hold current, trip current, and voltage ratings. Ensure package dimensions and soldering profiles remain compatible with existing manufacturing processes.