RXEF050S

$0.41

Description：PTC RESET FUSE 72V 500MA RADIAL
Series：PolySwitch®, RXEF
Mfr：Littelfuse Inc.
Package：Bag

SKU:a907fec8f9b5 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

RXEF050S is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 72V 500MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for RXEF050S

Description：PTC RESET FUSE 72V 500MA RADIAL
Series：PolySwitch®, RXEF
Mfr：Littelfuse Inc.
Package：Bag
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：500 mA
Current - Trip (It)：1:00 AM
Current - Max：40 A
Time to Trip：4 s
Resistance - Initial (Ri) (Min)：500 mOhms
Resistance - Post Trip (R1) (Max)：1.17 Ohms
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.311" Dia x 0.118" T (7.90mm x 3.00mm)
Height - Seated (Max)：0.539" (13.70mm)
Thickness (Max)：-
Lead Spacing：0.199" (5.05mm)

Ptc Resettable Fuses datasheet and documents for RXEF050S

RXEF050S

Ptc Resettable Fuses Overview

The Littelfuse RXEF050S is a PolySwitch radial leaded PTC resettable fuse designed for overcurrent protection. It features a hold current of 0.5A and a trip current of 1A, with a maximum voltage rating of 72VDC. The device has a maximum fault current rating of 40A and an initial resistance of 1.17 ohms. It operates within a temperature range of -40°C to +85°C and utilizes a bulk package with a 5.8mm lead spacing.

Ptc Resettable Fuses Feature Summary

Provides reliable overcurrent protection through self-resetting polymer technology
Offers low hold currents combined with high voltage ratings up to 72V
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 suffix 'S' against official Littelfuse documentation to confirm if it denotes a specialized tape-and-reel packaging variant or a distinct electrical specification compared to the standard bulk RXEF050. Ensure the procurement request explicitly matches the required form factor and termination style to avoid substitution errors during component sourcing.

Ptc Resettable Fuses Selection Notes

Select this component when circuit protection requires a high voltage rating of 72VDC alongside a low hold current of 0.5A. The radial leaded format is suitable for through-hole PCB mounting where space allows for the specified lead spacing. Consider the 85°C maximum operating temperature limit when designing for environments with significant thermal loads.

Ptc Resettable Fuses Part Context

The RXEF series represents a comprehensive set of PolySwitch radial-leaded devices from Littelfuse. These components are engineered to provide robust circuit protection across various electronic systems. The series is recognized for its wide range of form factors and compliance with major safety standards including UL, CSA, and TUV approvals for global market deployment.