RXEF050

$0.41

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

SKU:4da8dfd33e44 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

RXEF050 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 RXEF050

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 RXEF050

RXEF050

Ptc Resettable Fuses Overview

The Littelfuse RXEF050 is a PolySwitch radial leaded PTC resettable fuse designed for overcurrent protection. It features a hold current of 500 mA and a trip current of 1 A, with a maximum voltage rating of 72 VDC. The device has a maximum fault current rating of 40 A and an initial resistance of 1.17 ohms. It operates within a temperature range of -40°C to +85°C. The component utilizes a radial leaded package with a 5.8 mm lead spacing and a disk shape.

Ptc Resettable Fuses Feature Summary

Provides reliable overcurrent protection through automatic resistance increase during fault conditions
Offers resettable functionality allowing circuit restoration after cooling without replacement
Compatible with high-volume electronics assembly processes including wave soldering

Ptc Resettable Fuses Applications

Satellite video receivers
Industrial controls
Computer motherboards
USB hubs, ports and peripherals
IEEE 1394 ports

Ptc Resettable Fuses Procurement Notes

Verify the specific manufacturer part number against official Littelfuse documentation to ensure authenticity. Confirm that the received components match the specified electrical characteristics and physical dimensions. Check for compliance with RoHS standards and relevant agency approvals such as UL, CSA, and TUV before integration into final designs.

Ptc Resettable Fuses Selection Notes

Select this component when applications require a higher voltage rating up to 72 VDC compared to lower voltage alternatives. Ensure the hold current of 500 mA aligns with the normal operating current of the protected circuit. Consider the radial leaded form factor for through-hole mounting requirements on printed circuit boards.

Ptc Resettable Fuses Part Context

The RXEF050 belongs to the RXEF series of PolySwitch devices from Littelfuse. This series represents a comprehensive set of PPTC products offering low hold currents and high voltage ratings. The radial leaded configuration provides robust mechanical attachment for PCB mounting in various electronic assemblies.