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HomeProductsCircuit ProtectionFuses0451003.MR
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0451003.MR - Littelfuse Inc.

Manufacturer Part Number
0451003.MR
Manufacturer
Littelfuse
Allelco Part Number
32D-0451003.MR
ECAD Model
Parts Description
FUSE BRD MNT 3A 125VAC/VDC 2SMD
Package
2-SMD, Square End Block
Data sheet
Cylindrical Battery Holders.pdf
Cylindrical Battery Holders.pdf
Our certification
In stock: 4480

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Specifications

0451003.MR Tech Specifications
Littelfuse Inc. - 0451003.MR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 0451003.MR

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage Rating - DC 125 V  
Voltage Rating - AC 125 V  
Size / Dimension 0.240' L x 0.106' W x 0.106' H (6.10mm x 2.69mm x 2.69mm)  
Series NANO²® 451  
Response Time Fast Blow  
Package / Case 2-SMD, Square End Block  
Package Tape & Reel (TR)  
Operating Temperature -55°C ~ 125°C  
Product Attribute Attribute Value  
Mounting Type Surface Mount  
Melting I²t 1.65  
Fuse Type Board Mount (Cartridge Style Excluded)  
DC Cold Resistance 0.0227 Ohms  
Current Rating (Amps) 3 A  
Color -  
Breaking Capacity @ Rated Voltage 50A  
Approval Agency CSA, PSE, UL  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status
ECCN EAR99
HTSUS 8536.10.0040

Parts Introduction

Manufacturer Part Number

MR

Manufacturer

Littelfuse

Introduction

The Littelfuse NANO² 451 series surface mount fuses are compact, high-performance circuit protection devices designed to protect sensitive electronic components from overcurrent and short-circuit conditions. These fuses offer fast-acting, reliable protection in a small, space-saving package.

Product Features and Performance

Compact 2-SMD, square end block package

Current rating of 3A

125V AC/DC voltage rating

Fast-blow response time

Breaking capacity of 50A at rated voltage

Melting I²t of 1.65

Operating temperature range of -55°C to 125°C

Product Advantages

Miniature size for space-constrained applications

High breaking capacity for robust overcurrent protection

Fast-acting response to quickly clear faults

Wide operating temperature range for versatile use

Key Reasons to Choose This Product

Reliable circuit protection in a compact, space-saving design

Excellent overcurrent and short-circuit protection for sensitive electronics

Proven performance and quality from a trusted industry leader, Littelfuse

Versatile design suitable for a wide range of applications

Quality and Safety Features

Approved to CSA, PSE, and UL safety standards

Robust construction and materials for reliable operation

Compatibility

The Littelfuse NANO² 451 series fuses are designed for surface mount applications and can be used in a variety of electronic devices and systems.

Application Areas

Consumer electronics

Industrial automation and control

Telecommunications equipment

Power supplies and power management systems

Automotive electronics

Product Lifecycle

The Littelfuse NANO² 451 series fuse is currently in the obsolete product status. Customers are advised to contact our website's sales team for information on equivalent or alternative models that may be available.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 0451003.MR

Product Attribute 0451003.MR 0451002.NRL 0451003.NRL 0451004.MR
Part Number 0451003.MR 0451002.NRL 0451003.NRL 0451004.MR
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Voltage Rating - AC 125 V 125 V 125 V 125 V
Approval Agency CSA, PSE, UL CSA, PSE, UL CSA, PSE, UL CSA, PSE, UL
Breaking Capacity @ Rated Voltage 50A 50A 50A 50A
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Fuse Type Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Series NANO²® 451 NANO²® 451 NANO²® 451 NANO²® 451
Package / Case 2-SMD, Square End Block 2-SMD, Square End Block 2-SMD, Square End Block 2-SMD, Square End Block
Current Rating (Amps) 3 A 2 A 3 A 4 A
Color - - - -
Response Time Fast Blow Fast Blow Fast Blow Fast Blow
Voltage Rating - DC 125 V 125 V 125 V 125 V
Melting I²t 1.65 0.53 1.65 3.152
Size / Dimension 0.240' L x 0.106' W x 0.106' H (6.10mm x 2.69mm x 2.69mm) 0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm) 0.240' L x 0.106' W x 0.106' H (6.10mm x 2.69mm x 2.69mm) 0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
DC Cold Resistance 0.0227 Ohms 0.0367 Ohms 0.0227 Ohms 0.016 Ohms
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C

0451003.MR Datasheet PDF

Download 0451003.MR pdf datasheets and Littelfuse Inc. documentation for 0451003.MR - Littelfuse Inc..

Datasheets
Cylindrical Battery Holders.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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0451003.MR Image

0451003.MR

Littelfuse Inc.
32D-0451003.MR

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