R451003 The Littelfuse Inc. 0451003.MRL is a NANO²® Series fuse with a 3A current rating and 125VAC/VDC voltage rating. It features a fast-blow response time and a surface mountable 2-SMD package.
Mfr Part #:

R451003

Available from 5 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. 0451003.MRL is a NANO²® Series fuse with a 3A current rating and 125VAC/VDC voltage rating. It features a fast-blow response time and a surface mountable 2-SMD package.
✓ Total Stock: 1,814 pcs
$ Price Range: $1.32

R451003 Available from 5 distributors

✓ Authorised
✓ Non-Authorised

R451003 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current Rating
Dimensions
Fuse Type
Melting I²t
Mounting Type
Operating Temperature
Response Time
SVHC Present

R451003 Description

Short technical summary and product information.

This Littelfuse Inc. NANO²® Series fuse, part number 0451003.MRL, is designed for board mounting applications. It offers a reliable 3A current rating and a 125VAC/VDC voltage rating, making it suitable for various electrical protection needs.

 

The fuse features a fast-blow response time and a compact 2-SMD, Square End Block package, ideal for surface mount technology. Its operating temperature range is from -55°C to 125°C, ensuring performance in diverse environmental conditions. The dimensions are 6.10mm x 2.69mm x 2.69mm.

 

Key electrical characteristics include a breaking capacity of 50A at rated voltage and a melting I²t of 1.65. The fuse is packaged in Cut Tape (CT) & Digi-Reel®, facilitating automated assembly processes.

R451003 Quick Information

Product Type: Fuse
Series: 451
Canonical Name: Littelfuse Inc. 0451003.MRL Fuse
Subcategory: Board Mount Fuse

R451003 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

R451003 Estimated Pricing

Qty Low High
1+ $1.32 $1.32

Estimated market price range - modelled values for guidance only, not live distributor offers.

R451003 Features

  • 3A current rating for reliable protection.
  • 125VAC/VDC voltage rating.
  • Fast-blow response time.
  • Surface mountable 2-SMD package.
  • Wide operating temperature range.

R451003 Applications

  • Overcurrent protection for board-level circuits
  • Suitable for 125V AC/DC power supplies
  • Used in surface mount PCB designs
  • Fast-blow response for sensitive electronics
  • Ideal for compact electronic assemblies

R451003 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the Littelfuse Inc. 0451003.MRL fuse?

The current rating is 3A.

What is the voltage rating for the Littelfuse Inc. 0451003.MRL fuse?

The voltage rating is 125V AC and 125V DC.

What is the operating temperature range for this fuse?

The operating temperature range is -55°C to 125°C.

What type of package does the 0451003.MRL fuse use?

It uses a 2-SMD, Square End Block package.

Is the Littelfuse Inc. 0451003.MRL fuse RoHS compliant?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this fuse?

The MSL is Level 1.

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