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0454003.MR Littelfuse 0454003.MR is a 3A, 125VAC/VDC slow blow surface mount fuse in a 2-SMD square end block package.
Mfr Part #:

0454003.MR

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 0454003.MR is a 3A, 125VAC/VDC slow blow surface mount fuse in a 2-SMD square end block package.
✓ Total Stock: 1,783 pcs

0454003.MR Available from 3 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
967 pcs
On Request
967 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
460 pcs
On Request
460 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
356 pcs
On Request
356 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.

0454003.MR 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)
Failure Rate
Fuse Type
Halogen Free
Height
Lead Style
Length
Melting I²t
Mounting Type
Operating Temperature
Response Time
SVHC Present
Storage Temperature
Tape & Reel
Voltage Rating
Width
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0454003.MR Description

Short technical summary and product information.

The Littelfuse 0454003.MR is a 3A, 125VAC/VDC slow blow (time delay) surface mount fuse, part of the NANO2 452/454 Slo-Blo series. It is designed to provide inrush current withstand capability, helping to prevent nuisance opening in circuits with capacitive loads. The fuse features a breaking capacity of 50A at 125VAC/VDC and 300A at 32VDC, with a nominal cold resistance of 0.034 ohms and a melting I²t of 20.16 A²s.

 

This component is housed in a compact 2-SMD square end block package with dimensions of 6.10mm x 2.69mm x 2.69mm, suitable for surface mount assembly. It operates over a wide temperature range of -55°C to 125°C. The fuse is RoHS compliant and halogen free, with agency approvals including CSA, PSE, and UL, and conforms to CE, UKCA, DENAN, and EN 60127 standards.

 

Applications include notebook PCs, LCD monitors, power supplies, networking equipment, telecom systems, battery charging circuits, and industrial equipment.

0454003.MR Quick Information

Product Type: Surface Mount Fuse
Series: 452/454 Series
Canonical Name: Littelfuse 0454003.MR NANO2 Slo-Blo 3A 125V Surface Mount Fuse
Subcategory: Slow Blow / Time Delay Fuse

0454003.MR Compliance

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

0454003.MR Features

  • Slow blow time delay fuse design.
  • Rated for 3A at 125VAC/VDC.
  • Breaking capacity 50A at 125V.
  • Surface mount 2-SMD square end block.
  • RoHS compliant and halogen free.

0454003.MR Applications

  • Ideal for power supply input protection.
  • Used in notebook PC and LCD TV circuits.
  • Protects networking and telecom equipment.
  • Suitable for battery charging circuits.
  • Applied in industrial control systems.

0454003.MR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0454003.MR?

3A

What is the voltage rating?

125V AC/DC

What is the breaking capacity of this fuse?

50A at 125VAC/VDC and 300A at 32VDC

Is the 0454003.MR a slow blow or fast acting fuse?

Slow blow (time delay)

What is the package type?

2-SMD, square end block

What is the operating temperature range?

-55°C to 125°C

Is the 0454003.MR RoHS compliant?

Yes, it is RoHS compliant and halogen free.

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