RGEF250-2

$0.61

Description：PTC RESET FUSE 16V 2.5A RADIAL
Series：PolySwitch®, RGEF
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:e4824d4a7922 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

RGEF250-2 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 16V 2.5A RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for RGEF250-2

Description：PTC RESET FUSE 16V 2.5A RADIAL
Series：PolySwitch®, RGEF
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：16V
Current - Hold (Ih) (Max)：2.5 A
Current - Trip (It)：4.7 A
Current - Max：100 A
Time to Trip：5 s
Resistance - Initial (Ri) (Min)：22 mOhms
Resistance - Post Trip (R1) (Max)：53 mOhms
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.350" L x 0.118" W (8.90mm x 3.00mm)
Height - Seated (Max)：0.504" (12.80mm)
Thickness (Max)：-
Lead Spacing：0.199" (5.05mm)

Ptc Resettable Fuses datasheet and documents for RGEF250-2

RGEF250-2

Ptc Resettable Fuses Overview

The Littelfuse RGEF250-2 is a radial leaded polymer PTC resettable fuse from the PolySwitch RGEF series. It features a maximum holding current (Ih) of 2.5 A and a trip current (It) of 4.7 A. The device has a maximum voltage rating of 16 V and a maximum fault current rating of 100 A. Initial resistance (Ri) is typically 22 mOhms, with a maximum post-trip resistance (R1) of 53 mOhms. It operates within a temperature range of -40°C to 85°C and utilizes a radial, disc-style package.

Ptc Resettable Fuses Feature Summary

Provides automatic overcurrent protection by increasing resistance during fault conditions
Offers reusable circuit protection without requiring manual replacement
Designed for through-hole mounting on printed circuit boards

Ptc Resettable Fuses Applications

Protection of automotive circuits and wiring harnesses
Overcurrent safeguarding for telecom equipment
Circuit protection in power supply applications

Ptc Resettable Fuses Procurement Notes

Verify component authenticity using official Littelfuse documentation and datasheets. Confirm that the specific part number matches project requirements for voltage, current, and thermal ratings. Ensure compliance with RoHS3 standards and relevant agency approvals such as UL, CSA, and TUV before integration into final designs.

Ptc Resettable Fuses Selection Notes

Select this component based on the 2.5 A holding current and 16 V maximum voltage rating. Consider the radial leaded form factor for through-hole assembly processes. Evaluate the thermal environment to ensure operation remains within the specified -40°C to 85°C range. Verify that the initial and post-trip resistance values align with system impedance constraints.

Ptc Resettable Fuses Part Context

This device belongs to the Littelfuse PolySwitch RGEF series, which specializes in radial leaded polymer resettable fuses. These components are engineered for robust overcurrent protection in demanding environments. The series provides reliable performance across automotive, telecommunications, and general industrial applications where reusable circuit protection is required.