RUEF800-1

Ptc Resettable Fuses Overview

The RUEF800-1 is a PolySwitch resettable PTC fuse from the RUEF series, designed for through-hole mounting. It features a maximum voltage rating of 30 VDC and a hold current of 8 A. The trip current is specified at 16 A, with a maximum rated current of 100 A. Initial resistance is typically 20 mOhms. The device operates within a temperature range of -40°C to +85°C and dissipates up to 4 W. Physical dimensions include a length of 30.2 mm, width of 21.6 mm, and height of 3 mm, with a lead spacing of 10.9 mm.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection by increasing resistance during overcurrent conditions
• Offers manual reset capability after fault clearance without component replacement
• Features radial leaded construction suitable for through-hole PCB assembly

Ptc Resettable Fuses Applications

• Overcurrent protection in telecommunications equipment
• Circuit safeguarding in portable consumer electronics
• Protection for battery packs and power supply inputs

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix against Littelfuse documentation to confirm exact electrical tolerances and physical dimensions. Ensure the selected variant matches the required voltage and current ratings for the target application. Confirm RoHS compliance status and agency approvals such as UL or CSA before integration into certified designs.

Ptc Resettable Fuses Selection Notes

Select this component based on the 30 VDC voltage limit and 8 A continuous current requirement. Evaluate the thermal environment to ensure the 4 W power dissipation rating is sufficient. Compare the 16 A trip threshold against the system's surge currents to prevent nuisance tripping while maintaining effective fault protection.

Ptc Resettable Fuses Part Context

This part belongs to the RUEF series of radial-leaded PolySwitch devices. The series provides a balance of voltage rating and hold current options. It serves as a reusable alternative to traditional fuses in low-voltage DC circuits requiring compact overcurrent protection solutions.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes within the same series include RUEF800K. Verify that alternative part numbers maintain identical voltage, current, and dimensional specifications to ensure mechanical and electrical compatibility.