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0451003.MRL Surface mount fast blow fuse rated 3A at 125VAC/VDC. Features 50A breaking capacity and wide operating temperature range.
Mfr Part #:

0451003.MRL

Available from 5 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Surface mount fast blow fuse rated 3A at 125VAC/VDC. Features 50A breaking capacity and wide operating temperature range.
Total Stock: 3,354 pcs

0451003.MRL Available from 5 distributors

Authorised
Non-Authorised

0451003.MRL Specifications Quick View

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

0451003.MRL Description

Short technical summary and product information.

The Littelfuse 0451003.MRL is a 3A, 125VAC/VDC very fast-acting surface mount fuse from the Nano2 SMF series. It features a compact 2-SMD square end block package measuring 6.10mm x 2.69mm x 2.69mm. With a breaking capacity of 50A at rated voltage (and 300A at 32VDC), it provides reliable overcurrent protection for secondary side circuits. The fuse is RoHS compliant and halogen free, with agency approvals from CSA, PSE, and UL. Its operating temperature range of -55°C to 125°C makes it suitable for demanding environments. Typical applications include notebook PCs, LCD displays, power supplies, networking equipment, and battery charging circuits.

0451003.MRL Quick Information

Product Type: Fuse
Series: 451 Series
Canonical Name: Littelfuse 0451003.MRL Nano2 SMF 3A 125V Very Fast-Acting Surface Mount Fuse
Subcategory: Very Fast-Acting Fuse

0451003.MRL Compliance

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

0451003.MRL Features

  • Rated for 3A at 125VAC/VDC.
  • Very fast-acting response time.
  • Surface mount 2-SMD package.
  • 50A breaking capacity at rated voltage.
  • RoHS compliant and halogen free.

0451003.MRL Applications

  • Used in notebook PC power circuits.
  • Ideal for LCD display backlight inverters.
  • Suitable for networking equipment protection.
  • Applied in battery charging circuits.

0451003.MRL FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0451003.MRL?

3A.

What is the voltage rating?

125V AC/DC.

What is the breaking capacity?

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

What is the response time?

Fast blow (very fast-acting).

What is the package/case?

2-SMD, square end block.

What is the operating temperature range?

-55°C to 125°C.

What agency approvals does it have?

CSA, PSE, UL.

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