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0438.250WR

Littelfuse

0438.250WR by Littelfuse

0438.250WR by Littelfuse is a fast-acting electric fuse with a rated current of 0.25A and rated voltage of 63V, suitable for circuit protection in various applications. It has a trip time of 14400s, resistance of 2.02Ω, and dimensions of 1.54mm x 0.85mm x 0.5mm, making it ideal for surface mount installations requiring reliable overcurrent protection up to 50A breaking capacity at temperatures ranging from -55°C to 150°C.

Median Price

$1.008

Lifecycle Status

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17

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1k+

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Chip1Stop

Japan . 7,645 parts In-Stock

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$0.770

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$0.519

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$0.508

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7,645

$0.770

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$0.508

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Arrow

USA . 12 parts In-Stock

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$0.872

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$0.872

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Mouser Electronics

USA . 2,683 parts In-Stock

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$1.480

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$0.925

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$0.707

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$0.571

2,683

$1.480

$0.925

$0.707

$0.571

DigiKey

USA . 7,581 parts In-Stock

1+ parts

$1.660

100+ parts

$0.971

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$0.741

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$0.571

7,581

$1.660

$0.971

$0.741

$0.571

Newark

USA . 9,000 parts In-Stock

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$1.040

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$1.040

Farnell

UK . 9,000 parts In-Stock

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$0.500

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$0.500

Element14

Singapore . 9,000 parts In-Stock

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$1.440

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$1.440

Verical

USA . 4,912 parts In-Stock

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$0.977

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$0.977

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Distributors (In-Stock)

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PC Components Company LLC

USA . 56,438 parts In-Stock

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Bristol Electronics

USA . 56,438 parts In-Stock

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Cyclops Electronics Ltd

UK . 18,000 parts In-Stock

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NAC Semi

USA . 6,000 parts In-Stock

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$0.846

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$0.846

Rutronik

Germany . 3,000 parts In-Stock

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$0.711

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$0.711

Microfarads

USA . 1,082 parts In-Stock

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ACDS - Activité Composants Distribution Service

France . 682 parts In-Stock

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Nova Conductors

Japan . 450 parts In-Stock

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VNN

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Ampacity Inc.

Singapore . 5,793 parts In-Stock

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$0.442

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5,793

$0.442

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CoreStaff

Japan . 5,362 parts In-Stock

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$1.322

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$0.548

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$0.501

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5,362

$1.322

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Perfect Parts

USA . 38,273 parts In-Stock

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Kepictronics

USA . 28,770 parts In-Stock

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Futuretech Components

Singapore . 20,000 parts In-Stock

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Continental Prestige Electronics

USA . 3,000 parts In-Stock

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$0.501

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GreenTree Electronics

Israel . 3,000 parts In-Stock

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Argo Parts USA

USA . 1,793 parts In-Stock

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Aranea Global

USA . 1,000 parts In-Stock

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Overview

Discover the reliable power protection offered by the 0438.250WR fuse from Littelfuse, a trusted manufacturer in the industry. As a leading player in fuses, Littelfuse ensures quality and durability in every product. Ideal for a variety of applications, this fuse provides peace of mind with its fast blow characteristic, ensuring your circuits are protected from overloads. With a rated current of 0.25A and a maximum operating temperature of 150°C, this compact and efficient fuse is a valuable addition to any electrical setup. Trust Littelfuse for superior circuit protection solutions.

Feature Benefit Bullets

Nominal Joule Integral: 0.0017 J

Having a low nominal joule integral means this fuse can quickly respond to overcurrent situations, providing effective protection to the circuit.

Trip Time/Delay: 14400 Seconds

The long trip time/delay ensures that the fuse only blows when necessary, preventing unnecessary disruptions to the circuit.

Rated Current: 0.25 A

With a rated current of 0.25 A, this fuse is suitable for low current applications, offering precise protection to sensitive components.

Mounting Feature: SURFACE MOUNT

The surface mount feature allows for easy installation on PCBs, saving space and providing a clean and efficient circuit layout.

Maximum Operating Temperature: 150 °C

The high maximum operating temperature ensures the fuse can withstand elevated temperatures, making it suitable for a wide range of applications.

Technical Specifications

Fuses 0438.250WR attributes and parameters. Explore more Fuses devices from Littelfuse

Electrical Specifications

Circuit Protection Type:

Rated Current:

Rated Breaking Capacity:

50 A

Rated DC Voltage:

Rated Voltage:

63 V

Pre Arcing Rating (A2/s):

0.0017

Resistance:

2.02 Ω

Physical Dimensions

Body Diameter:

0.061 in (1.54 mm)

Body Height:

0.02 in (0.5 mm)

Body Width:

0.033 in (0.85 mm)

Dimensions:

0.061 x 0.033 x 0.02 in (1.54 x 0.85 x 0.5 mm)

Fuse Characteristics

Blow Characteristic:

Fast

Fuse Size/Group:

0603

Trip Time/Delay:

4 h

Nominal Joule Integral:

1.7 mJ

Operational Environment

Minimum Operating Temperature:

-55 °C (-67 °F)

Maximum Operating Temperature:

150 °C (302 °F)

Design and Compliance

Reference Standard:

CSA; UL

JESD-609 Code:

e3

Mounting and Packing

Terminal Shape:

Terminal Finish:

Matte Tin

Mounting Feature:

Packing Method:

Tape And Reel

Trade Compliance

0438.250WR 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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