RUEF250U

$0.48

Description：PTC RESET FUSE 30V 2.5A RADIAL
Series：PolySwitch®, RUEF
Mfr：Littelfuse Inc.
Package：Bag

SKU:f2457c4c8f90 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

RUEF250U is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 30V 2.5A RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for RUEF250U

Description：PTC RESET FUSE 30V 2.5A RADIAL
Series：PolySwitch®, RUEF
Mfr：Littelfuse Inc.
Package：Bag
Type：Polymeric
Voltage - Max：30V
Current - Hold (Ih) (Max)：2.5 A
Current - Trip (It)：5:00 AM
Current - Max：100 A
Time to Trip：10.3 s
Resistance - Initial (Ri) (Min)：20 mOhms
Resistance - Post Trip (R1) (Max)：70 mOhms
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.449" L x 0.118" W (11.40mm x 3.00mm)
Height - Seated (Max)：0.720" (18.30mm)
Thickness (Max)：-
Lead Spacing：0.199" (5.05mm)

Ptc Resettable Fuses datasheet and documents for RUEF250U

RUEF250U

Ptc Resettable Fuses Overview

The Littelfuse RUEF250U is a PolySwitch radial-leaded PPTC resettable fuse designed for overcurrent protection. It features a 2.5 A hold current and a 4.9 A trip current, operating at a maximum voltage of 30 VDC. The device has a maximum resistance of 80 mOhms and can withstand fault currents up to 100 A. It operates within a temperature range of -40°C to +85°C, with dimensions of 16.3 mm length, 8.1 mm width, and 2.8 mm height.

Ptc Resettable Fuses Feature Summary

Provides reliable overcurrent protection through automatic resistance increase during fault conditions
Offers resettable functionality to restore circuit continuity after cooling
Compatible with high-volume electronics assembly processes

Ptc Resettable Fuses Applications

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

Ptc Resettable Fuses Procurement Notes

Verify the specific part number RUEF250U against official Littelfuse documentation to confirm the uncoated variant specifications. Ensure compatibility with PCB mounting requirements and verify that the 30VDC rating aligns with the target circuit design parameters before procurement.

Ptc Resettable Fuses Selection Notes

Select this component when a 2.5A hold current and 30VDC rating are required for radial-leaded applications. Consider the 80 mOhms initial resistance and 100A max fault current capability for circuit protection needs. Verify thermal management requirements given the 85°C maximum operating temperature limit.

Ptc Resettable Fuses Part Context

This component belongs to the Littelfuse RUEF series of PolySwitch resettable fuses. The series provides a comprehensive set of PPTC products balancing voltage ratings up to 30V and hold currents up to 9A. These devices are designed for robust overcurrent protection in various electronic assemblies.