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RXEF040 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

RXEF040 product

RXEF040

PTC Resettable Fuses

PPTCResettable FuseLittelfuse

The RXEF040 is a 72V, 0.4A radial-leaded resettable PPTC fuse used for overcurrent protection.

Best for

  • Overcurrent protection in industrial and consumer electronics

Avoid if

  • Reflow soldering is required in the assembly process

Check before use

  • Ensure the device is not constrained in rigid housings that prevent expansion

Key specifications

Hold Current
0.4 A
Max Voltage
72 V
Max Resistance
0.86 Ω

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level 1
ECCN
-
HTSUS
-

Application

Industrial ControlsComputer Motherboards

Datasheet

media

800 KB

Datasheet AI

CAD Models

Download ECAD models for RXEF040: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The RXEF040 is a radial-leaded PolySwitch resettable PPTC (Polymeric Positive Temperature Coefficient) device manufactured by Littelfuse, designed to protect circuits from overcurrent conditions.