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HomeProductsCircuit ProtectionFuses0451012.MRSN
0451012.MRSN Image
Image may be representation.
See specifications for product details.

0451012.MRSN - Littelfuse Inc.

Manufacturer Part Number
0451012.MRSN
Manufacturer
Littelfuse
Allelco Part Number
32D-0451012.MRSN
ECAD Model
Parts Description
FUSE BOARD MOUNT 12A 125VAC 2SMD
Detailed Description
Package
2-SMD, Square End Block
Data sheet
451, 453 Series NANO2® Fuse.pdf
451, 453 Series NANO2® Fuse.pdf
RoHs Status
ROHS3 Compliant
In stock: 46210

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Quantity

Specifications

0451012.MRSN Tech Specifications
Littelfuse Inc. - 0451012.MRSN technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 0451012.MRSN

Product Attribute Attribute Value  
Manufacturer Littelfuse  
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 47.97  
Fuse Type Board Mount (Cartridge Style Excluded)  
DC Cold Resistance 0.0049 Ohms  
Current Rating (Amps) 12 A  
Color -  
Breaking Capacity @ Rated Voltage 35A  
Approval Agency CSA, METI, UR  

Parts Introduction

Manufacturer Part Number

MRSN

Manufacturer

littelfuse

Introduction

The littelfuse NANO² 451 series fuse is a high-performance, surface mount circuit protection device designed for a wide range of electronic applications. This compact fuse offers reliable overcurrent protection in a small footprint, making it ideal for use in space-constrained designs.

Product Features and Performance

Fast-acting, "fast-blow" response time for quick circuit interruption

High breaking capacity of 35A at rated voltage

Wide operating temperature range of -55°C to 125°C

Compact 2-SMD, square end block package

Low DC cold resistance of 0.0049 Ohms for minimal power loss

Product Advantages

Robust design for reliable performance

Space-saving footprint for efficient board layout

Excellent overcurrent protection for sensitive electronics

Broad compatibility with various electronic applications

Key Reasons to Choose This Product

Proven reliability and performance of the littelfuse brand

Comprehensive safety approvals, including CSA, METI, and UR

Customizable options to meet specific application requirements

Exceptional value and cost-effectiveness for circuit protection needs

Quality and Safety Features

Certified to relevant safety standards, ensuring reliable and safe operation

Rigorous testing and quality control processes for consistent performance

RoHS compliance for environmental responsibility

Compatibility

The littelfuse NANO² 451 series fuse is compatible with a wide range of electronic devices and applications, including:

Consumer electronics

Industrial equipment

Automotive electronics

Power supplies

Telecommunications equipment

Application Areas

Overcurrent protection for sensitive electronic circuits

Circuit protection for power distribution and control systems

Safety-critical applications requiring reliable circuit interruption

Product Lifecycle

The littelfuse NANO² 451 series fuse is an active and currently available product. There are no announced plans for discontinuation, and no direct equivalent or alternative models are available at this time. For the latest information or to discuss custom requirements, please contact our website's sales team.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 0451012.MRSN

Product Attribute 0451012.MRSN 045102.5MRSN 045102.5MRL 0451015.MRSN
Part Number 0451012.MRSN 045102.5MRSN 045102.5MRL 0451015.MRSN
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
DC Cold Resistance 0.0049 Ohms 0.0286 Ohms 0.0286 Ohms 0.0037 Ohms
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)
Breaking Capacity @ Rated Voltage 35A 50A 50A 100A AC, 150A DC
Response Time Fast Blow Fast Blow Fast Blow Fast Blow
Voltage Rating - AC 125 V 125 V 125 V 65 V
Series NANO²® 451 NANO²® 451 NANO²® 451 NANO²® 451
Melting I²t 47.97 1.029 1.029 97.82
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Color - - - -
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)
Approval Agency CSA, METI, UR CSA, METI, UR CSA, PSE, UL CSA, METI, UR
Current Rating (Amps) 12 A 2.5 A 2.5 A 15 A
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount

0451012.MRSN Datasheet PDF

Download 0451012.MRSN pdf datasheets and Littelfuse Inc. documentation for 0451012.MRSN - Littelfuse Inc..

Datasheets
451, 453 Series NANO2® Fuse.pdf
HTML Datasheet
451, 453 Series NANO2® Fuse.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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0451012.MRSN Image

0451012.MRSN

Littelfuse Inc.
32D-0451012.MRSN

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