RXEF135K-AP

$0.56

Description：PTC RESET FUSE 72V 1.35A RADIAL
Series：PolySwitch®, RXEF
Mfr：Littelfuse Inc.
Package：Cut Tape (CT),Tape & Box (TB)

SKU:51e9200b9400 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

RXEF135K-AP is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 72V 1.35A RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for RXEF135K-AP

Description：PTC RESET FUSE 72V 1.35A RADIAL
Series：PolySwitch®, RXEF
Mfr：Littelfuse Inc.
Package：Cut Tape (CT),Tape & Box (TB)
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：1.35 A
Current - Trip (It)：2.7 A
Current - Max：40 A
Time to Trip：9.6 s
Resistance - Initial (Ri) (Min)：120 mOhms
Resistance - Post Trip (R1) (Max)：300 mOhms
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.535" Dia x 0.118" T (13.58mm x 3.00mm)
Height - Seated (Max)：0.776" (19.70mm)
Thickness (Max)：-
Lead Spacing：0.199" (5.05mm)

Ptc Resettable Fuses datasheet and documents for RXEF135K-AP

RXEF135K-AP

Ptc Resettable Fuses Overview

The Littelfuse RXEF135K-AP is a PolySwitch resettable PPTC fuse designed for PCB mounting. It features a radial lead termination with a 5.8 mm lead spacing. The device has a hold current of 1.85 A and a trip current of 3.7 A, operating at a maximum voltage of 72 VDC. It withstands a maximum fault current (Imax) of 40 A with a typical resistance of 190 mOhms. Power dissipation is rated at 2.1 W. The component operates within a temperature range of -40°C to +85°C and measures 16.76 mm in diameter by 3 mm in length.

Ptc Resettable Fuses Feature Summary

Provides automatic circuit protection through self-resetting polymer technology
Designed for high-volume electronics assembly compatibility
Complies with RoHS standards and is lead-free and halogen-free

Ptc Resettable Fuses Applications

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

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'K-AP' against the manufacturer's official datasheet to confirm packaging configuration and compliance status. Ensure the selected variant matches the required hold current and voltage ratings for the target circuit design. Cross-reference the UL file number E74889 for safety certification requirements.

Ptc Resettable Fuses Selection Notes

Select this component based on the 1.85 A hold current and 72 VDC rating. Consider the 190 mOhms resistance and 2.1 W power dissipation for thermal management. Verify that the radial lead spacing of 5.8 mm fits the PCB layout constraints. Confirm the operating temperature range meets the environmental conditions.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse RXEF series of radial-leaded PPTC devices. The series offers low hold currents down to 50 mA and high voltage ratings up to 72 V. These components are recognized under UL 1434 and approved by CSA and TUV for various international standards.