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045101.5MRL Littelfuse 045101.5MRL is a 1.5A, 125VAC/VDC, fast blow surface mount fuse from the 451 series. It offers a 50A interrupting rating and comes in a compact 2-SMD, square end block package.
Mfr Part #:

045101.5MRL

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 045101.5MRL is a 1.5A, 125VAC/VDC, fast blow surface mount fuse from the 451 series. It offers a 50A interrupting rating and comes in a compact 2-SMD, square end block package.
Total Stock: 102 pcs

045101.5MRL Available from 3 distributors

Authorised
Non-Authorised

045101.5MRL Specifications Quick View

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

045101.5MRL Description

Short technical summary and product information.

The Littelfuse 045101.5MRL is a 451 series Nano2® SMF (Surface Mount Fuse) designed for over-current protection in secondary side circuits. This very fast-acting fuse is rated for 1.5A at 125VAC/VDC and provides a breaking capacity of 50A at rated voltage.

 

The fuse has a cold resistance of 0.0630 Ω and a melting I²t of 0.853 A²sec, making it suitable for protecting sensitive electronic components. It is packaged in a 2-SMD, square end block format, which is compatible with standard surface mount assembly processes.

 

The 045101.5MRL is approved by CSA, PSE, and UL, and is RoHS compliant and halogen free. It operates over a wide temperature range of -55°C to 125°C, ensuring reliability in diverse environments.

045101.5MRL Quick Information

Product Type: Board Mount Fuse
Series: 451
Canonical Name: Littelfuse 451 Series 1.5A Fast Blow Surface Mount Fuse, 125VAC/VDC, 50A Breaking Capacity
Subcategory: Surface Mount Fuse

045101.5MRL Compliance

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

045101.5MRL Features

  • Very fast-acting, 1.5A rated current.
  • Rated for 125V AC and DC operation.
  • 50A breaking capacity at rated voltage.
  • Surface mount 2-SMD square end block package.
  • RoHS compliant and halogen free.

045101.5MRL Applications

  • Secondary side over-current protection in power supplies.
  • Protection for notebook PC and LCD TV circuits.
  • Used in networking and telecom equipment.
  • Battery charging circuit protection for portable devices.

045101.5MRL FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 045101.5MRL fuse?

The 045101.5MRL is rated for 1.5 A.

What voltage ratings does this fuse support?

This fuse is rated for 125 V AC and 125 V DC.

What is the breaking capacity of the 045101.5MRL?

The breaking capacity is 50 A at the rated voltage of 125 V.

Is the 045101.5MRL a fast-blow or slow-blow fuse?

It is a fast-blow (very fast-acting) fuse.

What is the package style of this Littelfuse fuse?

It comes in a 2-SMD, square end block surface mount package.

What are the operating temperature limits?

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

Is the 045101.5MRL RoHS compliant?

Yes, the fuse is RoHS compliant and also halogen free.

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