0440003.WR - Littelfuse Inc.

Manufacturer Part Number

WR

Manufacturer

Littelfuse

Introduction

Compact, fast-acting surface mount fuse designed for protecting electronic circuits.

Product Features and Performance

Surface Mount Mounting Type

Board Mount Fuse Type

Fast-acting Response Time

Suitable for 32V AC and DC circuits

1206 (3216 Metric) Package / Case

High breaking capacity of 50A at rated voltage

Low DC Cold Resistance of 0.02252 Ohms

Product Advantages

Optimizes board space with small 1206 footprint

Quick response to overcurrent conditions

High melting I²t for robust performance

Stable operation in a wide temperature range of -55°C to 150°C

Key Technical Parameters

Current Rating 3 A

Voltage Rating 32 V AC and DC

Melting I²t value of 1.232

Fast Blow speed

Quality and Safety Features

CSA and UL approved

Meets regulatory standards for safety and reliability

Compatibility

Designed for use in electronic assemblies complying with 1206 footprint requirements

Application Areas

Consumer Electronics

Computer Systems

Power Supplies

Automotive Circuits

Telecommunications

Product Lifecycle

Active status

Currently not nearing discontinuation

Availability of replacements or upgrades not stated

Key Reasons to Choose This Product

Ideal for applications requiring compact protection

Fast reaction to fault conditions helps reduce potential damage

Capable of handling high interrupt current

Low resistance preserves energy in circuits

Proven safety with CSA and UL approvals

Wide operating temperature range for diverse environments

Reliable performance with consistent manufacturing quality from Littelfuse