RXEF020-2 - Littelfuse Inc.

Manufacturer Part Number

RXEF020-2

Manufacturer

Littelfuse

Introduction

The RXEF020-2 is a PolySwitch® resettable PTC (Positive Temperature Coefficient) fuse from Littelfuse. It is a compact, through-hole device designed to provide overcurrent protection in a wide range of electronic applications. This PTC fuse offers reliable circuit protection by automatically limiting current when an overload or short-circuit condition occurs, and then resetting once the fault is cleared.

Product Features and Performance

Polymeric PTC device with a maximum voltage rating of 72V

Hold current of 200mA and trip current of 400mA

Maximum current handling capability of 40A

Fast time-to-trip of 2.2 seconds

Initial resistance of 1.83 ohms, with a maximum post-trip resistance of 4.4 ohms

Operating temperature range of -40°C to 85°C

Product Advantages

Resettable overcurrent protection

Small, compact design for space-constrained applications

Reliable performance and long lifespan

RoHS and REACH compliant

Key Reasons to Choose This Product

Robust circuit protection against overloads and short-circuits

Automatic reset function eliminates the need for manual intervention

Compact size allows for flexible integration into various electronic devices

Proven Littelfuse quality and reliability

Quality and Safety Features

Approved by leading safety agencies including CQC, CSA, TUV, and UL

Designed and manufactured to the highest quality standards

Compatibility

The RXEF020-2 PTC fuse is compatible with a wide range of electronic applications, including:

Consumer electronics

Industrial equipment

Telecommunications devices

Automotive electronics

Medical devices

Application Areas

Overcurrent protection in power supply circuits

Short-circuit protection for motors, transformers, and other inductive loads

Reverse polarity protection in battery-powered devices

Safeguarding against overcurrent conditions in various electronic systems

Product Lifecycle

The RXEF020-2 is an active product in Littelfuse's PolySwitch® RXEF series. There are no direct equivalent or alternative models available at this time. If you require further information or support, please contact our website's sales team.