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HomeProductsCircuit ProtectionFuses0451001.MR
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0451001.MR - Littelfuse Inc.

Manufacturer Part Number
0451001.MR
Manufacturer
Littelfuse
Allelco Part Number
32D-0451001.MR
ECAD Model
Parts Description
FUSE BRD MNT 1A 125VAC/VDC 2SMD
Package
2-SMD, Square End Block
Data sheet
Cylindrical Battery Holders.pdf
Cylindrical Battery Holders.pdf
Our certification
In stock: 5090

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Specifications

0451001.MR Tech Specifications
Littelfuse Inc. - 0451001.MR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 0451001.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 0.459  
Fuse Type Board Mount (Cartridge Style Excluded)  
DC Cold Resistance 0.153 Ohms  
Current Rating (Amps) 1 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 0451001.MR is a NANO²® 451 series surface mount fuse from Littelfuse. It is a fast-acting, board-mountable fuse designed to provide protection against overcurrent and short-circuit conditions in electronic devices and circuits.

Product Features and Performance

Current Rating: 1 A

Voltage Rating: 125 V AC/DC

Response Time: Fast Blow

Package/Case: 2-SMD, Square End Block

Breaking Capacity @ Rated Voltage: 50 A

Melting I²t: 0.459

Operating Temperature: -55°C to 125°C

DC Cold Resistance: 0.153 Ohms

Product Advantages

Compact and space-saving design

Reliable overcurrent protection

Fast-acting response to fault conditions

Surface mount for easy PCB integration

Suitable for a wide range of electronic applications

Key Reasons to Choose This Product

Proven Littelfuse quality and reliability

Optimized for high-density circuit protection

Wide operating temperature range

Compliant with safety agency approvals (CSA, PSE, UL)

Cost-effective solution for circuit protection

Quality and Safety Features

Complies with CSA, PSE, and UL safety standards

Robust construction for reliable performance

Designed for long-term durability and service life

Compatibility

The 0451001.MR fuse is designed for surface mount application on printed circuit boards.

Application Areas

Consumer electronics

Industrial equipment

Telecommunications systems

Power supplies

Automotive electronics

Product Lifecycle

The 0451001.MR is an obsolete product, meaning it is no longer in active production. However, Littelfuse offers alternative and equivalent models that can be used as replacements. Customers are advised to contact our website's sales team for more information on available options.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 0451001.MR

Product Attribute 0451001.MR 0451002.MR 0451001.MRL 0451003.NRL
Part Number 0451001.MR 0451002.MR 0451001.MRL 0451003.NRL
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
DC Cold Resistance 0.153 Ohms 0.0367 Ohms 0.153 Ohms 0.0227 Ohms
Melting I²t 0.459 0.53 0.459 1.65
Package / Case 2-SMD, Square End Block 2-SMD, Square End Block 2-SMD, Square End Block 2-SMD, Square End Block
Fuse Type Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded)
Voltage Rating - AC 125 V 125 V 125 V 125 V
Voltage Rating - DC 125 V 125 V 125 V 125 V
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)
Series NANO²® 451 NANO²® 451 NANO²® 451 NANO²® 451
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Current Rating (Amps) 1 A 2 A 1 A 3 A
Approval Agency CSA, PSE, UL CSA, PSE, UL CSA, PSE, UL CSA, PSE, UL
Breaking Capacity @ Rated Voltage 50A 50A 50A 50A
Color - - - -
Response Time Fast Blow Fast Blow Fast Blow Fast Blow

0451001.MR Datasheet PDF

Download 0451001.MR pdf datasheets and Littelfuse Inc. documentation for 0451001.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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0451001.MR Image

0451001.MR

Littelfuse Inc.
32D-0451001.MR

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