1812L035/30DR

Ptc Resettable Fuses Overview

The Littelfuse 1812L035/30DR is a POLY-FUSE resettable PTC device in the 1812L series. It features a hold current of 350 mA and a trip current of 750 mA, rated for a maximum voltage of 30 VDC. The component has a maximum resistance of 1.7 Ohms and an interrupting rating of 40 A. It operates within a temperature range of -40°C to +85°C. The package dimensions are 4.73 mm length, 3.41 mm width, and 1.25 mm height.

Ptc Resettable Fuses Feature Summary

• Polymer-based self-resetting overcurrent protection mechanism
• Surface-mount construction compatible with standard SMD/SMT assembly processes
• Halogen-free composition meeting environmental standards

Ptc Resettable Fuses Applications

• Portable electronic devices
• Battery pack protection circuits
• Peripheral interface ports

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix DR indicates reel packaging configuration against official Littelfuse documentation. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure storage conditions adhere to moisture sensitivity level requirements prior to soldering.

Ptc Resettable Fuses Selection Notes

Select this component when circuit protection requires a low-profile surface-mount solution with a 30V DC rating. The 350 mA hold current suits low-power signal lines. Verify that the 1.7 Ohm initial resistance does not impact signal integrity or power loss requirements in the target application design.

Ptc Resettable Fuses Part Context

This part belongs to the 1812L series of POLY-FUSE resettable fuses. The series provides overcurrent protection in a compact 1812 (4532 metric) case size. These devices utilize polymer technology to offer reusable protection compared to single-use traditional fuses.

Ptc Resettable Fuses Replacement Considerations

Consult Littelfuse official cross-reference documents for verified substitutes. Generic equivalents may differ in trip characteristics or thermal performance.