RLD30P300UF

Ptc Resettable Fuses Overview

The Littelfuse RLD30P300UF is a PolySwitch resettable PPTC fuse designed for overcurrent protection. It features a hold current of 3.0 A and a trip current of 6.0 A, with a maximum voltage rating of 30 VDC. The device has a minimum resistance of 20 mOhms and a maximum resistance of 1 Ohm at 25°C. It supports a maximum fault current of 40 A and operates within a temperature range of -40°C to +85°C. The component utilizes radial leads with a 5.1 mm spacing and measures 10.2 mm in width.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by raising resistance as it heats to limit current flow during fault conditions.
• Offers resettable functionality that restores circuit continuity after the fault condition is removed and the device cools down.

Ptc Resettable Fuses Applications

• Satellite video receivers
• Industrial controls
• Computer motherboards
• USB hubs, ports and peripherals

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'UF' against the official Littelfuse datasheet to confirm lead-free status and packaging type. Confirm RoHS compliance requirements match project specifications. Check for obsolescence or lifecycle status directly from the manufacturer before finalizing procurement plans.

Ptc Resettable Fuses Selection Notes

Select this component when a 30V DC circuit requires overcurrent protection rated at 3.0A hold current. Ensure the application environment stays within the -40°C to +85°C operating range. Verify that the radial lead spacing and physical dimensions fit the PCB layout constraints.

Ptc Resettable Fuses Part Context

This part belongs to the RLD30 series of PolySwitch resettable fuses. These devices are designed for balance between voltage rating and hold current capabilities. The series includes various form factors and termination methods compatible with high-volume electronics assembly.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's cross-reference tools for potential alternatives.