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0451.800MRL 0451.800MRL is a Littelfuse Nano2 451 series fast-acting board mount fuse rated for 800 mA at 125 VAC/VDC. It features surface mount packaging and a 50A breaking capacity.
Mfr Part #:

0451.800MRL

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
0451.800MRL is a Littelfuse Nano2 451 series fast-acting board mount fuse rated for 800 mA at 125 VAC/VDC. It features surface mount packaging and a 50A breaking capacity.
✓ Total Stock: 1,300 pcs

0451.800MRL Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Tokyo Device ✓
Non-Authorised Inventory information
1,200 pcs
On Request
1200 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
100 pcs
On Request
100 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

0451.800MRL 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
Lead Style
Length
Melting I²t
Mounting Type
Operating Temperature
Response Time
Tape & Reel
Voltage Rating
Width
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0451.800MRL Description

Short technical summary and product information.

The 0451.800MRL is a very fast-acting surface mount fuse from Littelfuse, part of the Nano2 451 series. It is rated at 800 mA with a voltage rating of 125 VAC and 125 VDC, and offers a breaking capacity of 50A. The response time is fast blow, suitable for protecting sensitive electronic circuits from overcurrent conditions.

 

The fuse is housed in a compact 2-SMD, square end block package measuring 6.10mm x 2.69mm x 2.69mm, designed for surface mount technology on printed circuit boards. It operates across a wide temperature range from -55°C to 125°C.

 

Applications include secondary side circuit protection in notebook PCs, LCD TVs, monitors, power supplies, networking equipment, battery charging circuits, and other industrial or consumer electronics.

0451.800MRL Quick Information

Product Type: Surface Mount Fuse
Series: 451
Canonical Name: 0451.800MRL Littelfuse Nano2 800mA 125V Fast-Acting Surface Mount Fuse
Subcategory: Fast-Acting Fuse

0451.800MRL Compliance

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

0451.800MRL Features

  • Fast-acting response for overcurrent protection.
  • Rated for 800 mA at 125 VAC/VDC.
  • Surface mount package for automated assembly.
  • 50 A interrupting rating ensures reliable protection.
  • Wide operating temperature range of -55°C to 125°C.

0451.800MRL Applications

  • Protects notebook PC power circuits.
  • Used in LCD TV and monitor backlighting.
  • Suitable for battery charging circuit protection.
  • Deployed in networking and telecom equipment.

0451.800MRL FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0451.800MRL fuse?

The current rating is 800 mA.

What is the voltage rating for this fuse?

It is rated for 125 VAC and 125 VDC.

What is the breaking capacity of the 0451.800MRL?

The breaking capacity is 50A.

Is this fuse fast-acting or slow-blow?

It has a fast blow (very fast-acting) response time.

What package does the 0451.800MRL come in?

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

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