0451.375MR Surface mount fuse rated 375mA at 125VAC/VDC with very fast-acting response. Breaking capacity 50A at 125V.
Mfr Part #:

0451.375MR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Surface mount fuse rated 375mA at 125VAC/VDC with very fast-acting response. Breaking capacity 50A at 125V.
✓ Total Stock: 870 pcs

0451.375MR Available from 1 distributor

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✓ Non-Authorised
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870 pcs
870 pcs On Request 1 On Request On Request On Request On Request On Request

0451.375MR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity @ Rated Voltage
Current Rating
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Length
Medical Grade
Melting I²t
Military Grade
Mounting Type
Operating Temperature
Package / Case
Response Time
Termination Style
Voltage Rating
Width

0451.375MR Description

Short technical summary and product information.

The Littelfuse 0451.375MR is a very fast-acting surface mount fuse from the Nano2 SMF 451/453 series. It is rated for 375mA at 125VAC/VDC and provides a breaking capacity of 50A at rated voltage. The fuse is designed for secondary side over-current protection in a wide range of electronic applications.

 

Electrical characteristics include a nominal cold resistance of 0.4541 Ω and a melting I²t of 0.0425 A²s. The operating temperature range spans -55°C to 125°C, making it suitable for demanding environments. The fuse is approved by CSA, UL, and PSE, and is RoHS compliant and halogen free.

 

The component is housed in a 2-SMD square end block package with dimensions 6.10mm x 2.69mm x 2.69mm, designed for surface mount soldering. It is ideal for PCB assembly in space-constrained designs.

0451.375MR Quick Information

Product Type: Surface Mount Fuse
Series: 451/453 Series
Canonical Name: Littelfuse 0451.375MR Very Fast-Acting Surface Mount Fuse
Subcategory: Very Fast-Acting Fuse

0451.375MR Compliance

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

0451.375MR Features

  • Very fast-acting response time.
  • Rated 375mA at 125VAC/VDC.
  • Breaking capacity 50A at 125V.
  • Surface mount 2-SMD square end block.
  • RoHS compliant and halogen free.

0451.375MR Applications

  • Secondary side over-current protection.
  • Notebook PC and LCD monitor circuits.
  • Power supply and networking equipment.
  • Battery charging circuit protection.
  • Industrial equipment control boards.

0451.375MR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0451.375MR fuse?

The current rating is 375 mA (0.375 A).

What is the voltage rating of this fuse?

The voltage rating is 125 VAC/VDC.

What is the breaking capacity of the 0451.375MR?

The breaking capacity is 50A at 125V rated voltage, and 300A at 32VDC.

What is the response time of this fuse?

The response time is very fast-acting (Fast Blow).

What package does the 0451.375MR come in?

It comes in a 2-SMD, Square End Block package for surface mount.

What is the operating temperature range?

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

What agency approvals does this fuse have?

It is approved by CSA, UL, and PSE.

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