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0451.100MRL 0451.100MRL is a 100mA, 125VAC/VDC very fast-acting surface mount fuse from Littelfuse's Nano2 series. It has a 50A breaking capacity at 125V and is CSA/UL approved.
Mfr Part #:

0451.100MRL

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
0451.100MRL is a 100mA, 125VAC/VDC very fast-acting surface mount fuse from Littelfuse's Nano2 series. It has a 50A breaking capacity at 125V and is CSA/UL approved.
Total Stock: 19,200 pcs

0451.100MRL Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
13,200 pcs
13200 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
6,000 pcs
6000 pcs On Request 1 On Request On Request On Request On Request On Request

0451.100MRL Specifications Quick View

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

0451.100MRL Description

Short technical summary and product information.

The 0451.100MRL is a very fast-acting surface mount fuse from Littelfuse's Nano2 series. This board mount fuse is rated for 100mA at 125VAC/VDC and provides reliable overcurrent protection in a compact 2-SMD square end block package.

 

With a 50A breaking capacity at rated voltage, the fuse ensures safe interruption of fault currents. The fast blow response time (0.00138 A²s melting I²t) offers rapid protection for sensitive circuits. Operating temperature range is -55°C to 125°C, suitable for demanding environments.

 

The fuse is CSA and UL approved, and the series is RoHS compliant and halogen free. Typical applications include notebook PCs, LCD monitors, power supplies, networking equipment, and battery charging circuits. The surface mount package facilitates automated PCB assembly.

0451.100MRL Quick Information

Product Type: Fuse
Series: 451
Canonical Name: 0451.100MRL - Littelfuse Nano2 100mA Very Fast-Acting Fuse
Subcategory: Surface Mount Fuse

0451.100MRL Compliance

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

0451.100MRL Features

  • Rated for 100mA at 125VAC/VDC.
  • Very fast-acting response time.
  • 50A breaking capacity at rated voltage.
  • Surface mount 2-SMD square end block package.
  • CSA and UL approved.

0451.100MRL Applications

  • Ideal for PCB overcurrent protection.
  • Used in notebook PC and LCD monitor circuits.
  • Suitable for power supply and networking equipment.
  • Applied in battery charging protection circuits.
  • Used in industrial equipment control systems.

0451.100MRL FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Littelfuse 0451.100MRL fuse?

100 mA

What is the voltage rating of the 0451.100MRL fuse?

125 V AC/DC

What is the breaking capacity of the 0451.100MRL?

50 A at 125 V

What is the response time of the 0451.100MRL?

Fast Blow (Very Fast-Acting)

What is the package/case of the 0451.100MRL?

2-SMD, Square End Block

What is the melting I²t of the 0451.100MRL fuse?

0.00138 A²s

What approvals does the 0451.100MRL have?

CSA and UL

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