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HomeProductsCircuit ProtectionFuses0451.500MR
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0451.500MR - Littelfuse Inc.

Manufacturer Part Number
0451.500MR
Manufacturer
Littelfuse
Allelco Part Number
32D-0451.500MR
ECAD Model
Parts Description
FUSE BOARD MNT 500MA 125VAC/VDC
Package
2-SMD, Square End Block
Data sheet
451, 453 Series NANO2® Fuse.pdf
451, 453 Series NANO2® Fuse.pdf
Our certification
In stock: 3970

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Specifications

0451.500MR Tech Specifications
Littelfuse Inc. - 0451.500MR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 0451.500MR

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 0.0795  
Fuse Type Board Mount (Cartridge Style Excluded)  
DC Cold Resistance 0.42 Ohms  
Current Rating (Amps) 500 mA  
Color -  
Breaking Capacity @ Rated Voltage 50A  
Approval Agency CSA, 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

500MR

Manufacturer

littelfuse

Introduction

The littelfuse 0451.500MR is a NANO²® 451 series surface mount fuse with a 500 mA current rating, designed for circuit protection applications. This fuse offers fast-blow response time and high breaking capacity to effectively safeguard sensitive electronic devices.

Product Features and Performance

Current Rating: 500 mA

Voltage Rating: 125 VAC/VDC

Response Time: Fast Blow

Package/Case: 2-SMD, Square End Block

Breaking Capacity @ Rated Voltage: 50A

Melting I²t: 0.0795

Operating Temperature: -55°C to 125°C

Product Advantages

Compact surface mount design for space-constrained applications

Fast-acting response for reliable circuit protection

High breaking capacity to safely interrupt fault currents

Wide operating temperature range for diverse environmental conditions

Key Reasons to Choose This Product

Robust circuit protection for sensitive electronic devices

Optimized performance and reliability for critical applications

Efficient space utilization with surface mount form factor

Trusted littelfuse quality and safety assurance

Quality and Safety Features

Certified by CSA and UL for safety and reliability

Rigorous testing and quality control measures

Compatibility

The 0451.500MR fuse is designed for use in a variety of electronic devices and circuits that require reliable overcurrent protection.

Application Areas

Consumer electronics

Industrial equipment

Telecommunications systems

Automotive electronics

Power supplies

Product Lifecycle

The 0451.500MR is an obsolete product, meaning it is no longer in active production. However, there may be equivalent or alternative models available from littelfuse. Customers are advised to contact our website's sales team for more information on current product offerings and potential replacement options.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 0451.500MR

Product Attribute 0451.500MR 0451.750MR 0451.500MRL 0451.400MRL
Part Number 0451.500MR 0451.750MR 0451.500MRL 0451.400MRL
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Voltage Rating - DC 125 V 125 V 125 V 125 V
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
DC Cold Resistance 0.42 Ohms 0.245 Ohms 0.42 Ohms 0.4233 Ohms
Package / Case 2-SMD, Square End Block 2-SMD, Square End Block 2-SMD, Square End Block 2-SMD, Square End Block
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)
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
Melting I²t 0.0795 0.185 0.0795 0.0484
Current Rating (Amps) 500 mA 750 mA 500 mA 400 mA
Color - - - -
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, UL CSA, UL CSA, UL CSA, UL
Response Time Fast Blow Fast Blow Fast Blow Fast Blow
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Series NANO²® 451 NANO²® 451 NANO²® 451 NANO²® 451
Voltage Rating - AC 125 V 125 V 125 V 125 V
Breaking Capacity @ Rated Voltage 50A 50A 50A 50A

0451.500MR Datasheet PDF

Download 0451.500MR pdf datasheets and Littelfuse Inc. documentation for 0451.500MR - Littelfuse Inc..

Datasheets
451, 453 Series NANO2® Fuse.pdf
PCN Packaging
EAC Mark 20/Feb/2018.pdf
HTML Datasheet
451, 453 Series NANO2® Fuse.pdf
PCN Obsolescence/ EOL
451MR/NR Non-RoHS 30/Oct/2017.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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0451.500MR Image

0451.500MR

Littelfuse Inc.
32D-0451.500MR

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