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0437004.WR

Littelfuse

0437004.WR by Littelfuse

0437004.WR fuse by Littelfuse is a fast blow electric fuse with 4A rated current and 35V rated voltage. It has a trip time of 1s, nominal joule integral of 1.024J, and is ideal for circuit protection in applications requiring surface mount fuses.

Median Price

$0.863

Lifecycle Status

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16

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1k+

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Arrow

USA . 3,000 parts In-Stock

1+ parts

$0.509

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$0.509

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Chip1Stop

Japan . 1,107 parts In-Stock

1+ parts

$0.749

100+ parts

$0.600

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$0.450

10k+ parts

$0.423

1,107

$0.749

$0.600

$0.450

$0.423

Mouser Electronics

USA . 1,009 parts In-Stock

1+ parts

$1.380

100+ parts

$0.842

1k+ parts

$0.655

10k+ parts

$0.570

1,009

$1.380

$0.842

$0.655

$0.570

Newark

USA . 790 parts In-Stock

1+ parts

$1.630

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$1.290

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$1.630

$1.290

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Farnell

UK . 8,860 parts In-Stock

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$0.590

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$0.563

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$0.535

8,860

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$0.590

$0.563

$0.535

Verical

USA . 3,688 parts In-Stock

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$0.977

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$0.977

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Nova Conductors

Japan . 10 parts In-Stock

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$0.613

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10

$0.613

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Cyclops Electronics Ltd

UK . 162,889 parts In-Stock

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Vyrian

USA . 3,468 parts In-Stock

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Rutronik

Germany . 3,000 parts In-Stock

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$0.777

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$0.777

NAC Semi

USA . 3,000 parts In-Stock

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$0.556

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$0.556

VNN

France . 2,231 parts In-Stock

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ACDS - Activité Composants Distribution Service

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Bristol Electronics

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Prism Electronics

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EMSNET

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CoreStaff

Japan . 5,980 parts In-Stock

1+ parts

$1.318

100+ parts

$0.547

1k+ parts

$0.499

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5,980

$1.318

$0.547

$0.499

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Ampacity Inc.

Singapore . 3,662 parts In-Stock

1+ parts

$1.400

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RC Electronics

USA . 91,500 parts In-Stock

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Perfect Parts

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Kepictronics

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Infinite Electronics LLP (Excess)

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GreenTree Electronics

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Glotronic Ltd.

UK . 2,500 parts In-Stock

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Component Stockers USA

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Netroflash

USA . 100 parts In-Stock

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$0.601

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$0.582

10k+ parts

$0.570

100

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$0.601

$0.582

$0.570

Overview

Experience peace of mind with the 0437004.WR fuse by Littelfuse, a trusted manufacturer known for quality and reliability. This fast-acting fuse offers superior circuit protection with a rated voltage of 35V and a maximum breaking capacity of 50A, ensuring your electronics are safeguarded against unexpected power surges. Ideal for a wide range of applications, this compact surface-mount fuse is designed to provide long-lasting protection without compromising performance. Invest in the 0437004.WR fuse today and enjoy the benefits of enhanced safety and peace of mind for your valuable electronic devices.

Feature Benefit Bullets

Nominal Joule Integral: 1.024 J

Higher joule rating provides better protection against power surges and electrical spikes.

Rated AC Voltage: 45 V

Suitable for use with a variety of AC voltage applications.

Trip Time/Delay: 1 Seconds

Fast trip time helps in quickly disconnecting the circuit during overcurrent situations.

Body Length/Diameter: 3.2 mm

Compact size allows for easy installation in tight spaces.

Rated Current: 4 A

Able to handle moderate electrical currents safely.

Maximum Operating Temperature: 150 °C

Can operate efficiently even in high-temperature environments.

Blow Characteristic: FAST

Fast blow characteristic ensures quick response to overcurrent conditions.

Mounting Feature: SURFACE MOUNT

Surface mount design simplifies installation and reduces space requirements.

Technical Specifications

Fuses 0437004.WR attributes and parameters. Explore more Fuses devices from Littelfuse

Electrical Specifications

Circuit Protection Type:

Rated Current:

4 A

Rated Breaking Capacity:

50 A

Rated AC Voltage:

Rated DC Voltage:

Rated Voltage:

35 V

Pre Arcing Rating (A2/s):

1.024

Physical Dimensions

Body Diameter:

0.126 in (3.2 mm)

Body Height:

0.033 in (0.835 mm)

Body Width:

0.064 in (1.63 mm)

Dimensions:

0.126 x 0.064 x 0.032 in (3.2 x 1.63 x 0.82 mm)

Fuse Characteristics

Blow Characteristic:

Fast

Fuse Size/Group:

1206

Trip Time/Delay:

1 s

Nominal Joule Integral:

1.024 J

Operational Environment

Minimum Operating Temperature:

-55 °C (-67 °F)

Maximum Operating Temperature:

150 °C (302 °F)

Design and Compliance

Reference Standard:

CSA; CUL; UL

JESD-609 Code:

e3

Mounting and Packing

Terminal Shape:

Terminal Finish:

Matte Tin Over Nickel

Mounting Feature:

Packing Method:

Tape And Reel

Trade Compliance

0437004.WR Circuit Protection trade compliance attributes, and parameters.

ECCN

EAR99

ECCN Governance

EAR

HTS

8536.10.00.40

SB

8536.10.00.40

Manufacturer Highlights

Littelfuse

Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 18,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse was founded in 1927.

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