RXEF090-2

$0.51

Description：PTC RESET FUSE 72V 900MA RADIAL
Series：PolySwitch®, RXEF
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT),Cut Tape (CT)

SKU:68ad8b39e865 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

RXEF090-2 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 72V 900MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for RXEF090-2

Description：PTC RESET FUSE 72V 900MA RADIAL
Series：PolySwitch®, RXEF
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT),Cut Tape (CT)
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：900 mA
Current - Trip (It)：1.8 A
Current - Max：40 A
Time to Trip：7.2 s
Resistance - Initial (Ri) (Min)：200 mOhms
Resistance - Post Trip (R1) (Max)：470 mOhms
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.441" Dia x 0.118" T (11.20mm x 3.00mm)
Height - Seated (Max)：0.622" (15.80mm)
Thickness (Max)：-
Lead Spacing：0.199" (5.05mm)

Ptc Resettable Fuses datasheet and documents for RXEF090-2

RXEF090-2

Ptc Resettable Fuses Overview

The Littelfuse RXEF090-2 is a PolySwitch radial leaded PPTC resettable fuse designed for PCB mounting. It features a hold current of 900 mA and a trip current of 1.8 A, with a maximum voltage rating of 72 VDC. The device offers a maximum interrupting current of 40 A and an initial resistance of 470 mOhms. Operating within a temperature range of -40°C to +85°C, it utilizes a radial package with a 5.8 mm lead spacing. The component is available in cut tape or reel packaging.

Ptc Resettable Fuses Feature Summary

Provides automatic circuit protection through polymer positive temperature coefficient technology
Enables repeated use after fault clearance without requiring manual replacement
Supports high-volume electronics assembly processes via standard radial lead termination

Ptc Resettable Fuses Applications

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

Ptc Resettable Fuses Procurement Notes

Verify the specific ordering suffix '-2' corresponds to the required packaging format, such as cut tape or reel, as indicated in official distributor specifications. Confirm that the 72VDC voltage rating and 900mA hold current align with the target circuit design requirements before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when designing circuits requiring overcurrent protection for low-voltage digital applications. Ensure the maximum operating temperature of +85°C accommodates the environmental conditions. Verify that the 40A interrupting rating exceeds the potential fault current levels present in the protected system to ensure adequate safety margins.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse RXEF series of PolySwitch resettable fuses. The series provides comprehensive radial-leaded PPTC solutions characterized by low hold currents and high voltage ratings up to 72V. These devices are engineered for robust circuit protection in consumer and industrial electronics.