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0451.250MRL Littelfuse 0451.250MRL is a 250mA very fast-acting surface mount fuse rated for 125VAC/VDC with 50A breaking capacity.
Mfr Part #:

0451.250MRL

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 0451.250MRL is a 250mA very fast-acting surface mount fuse rated for 125VAC/VDC with 50A breaking capacity.
Total Stock: 12,169 pcs

0451.250MRL Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
11,618 pcs
11618 pcs On Request 1 On Request On Request 16+ On Request On Request
Non-Authorised Inventory information
401 pcs
401 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
150 pcs
150 pcs On Request 1 On Request On Request On Request On Request On Request

0451.250MRL Specifications Quick View

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

0451.250MRL Description

Short technical summary and product information.

The Littelfuse 0451.250MRL is a 250mA very fast-acting surface mount fuse from the 451 series, housed in the Nano2 SMF package. It is designed for secondary side over-current protection in a wide range of electronic equipment.

 

This fuse is rated for 125VAC and 125VDC with a breaking capacity of 50A at rated voltage. The cold resistance is 0.5765 Ω and the melting I²t is 0.0158 A²s. It operates over a temperature range of -55°C to 125°C.

 

The component is surface mountable with a 2-SMD square end block package measuring 6.10mm x 2.69mm x 2.69mm. It is RoHS compliant and halogen free, with agency approvals including CSA and UL.

0451.250MRL Quick Information

Product Type: Fuse
Series: 451
Canonical Name: Littelfuse 0451.250MRL Nano2 SMF Very Fast-Acting Surface Mount Fuse
Subcategory: Surface Mount Fuse

0451.250MRL Compliance

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

0451.250MRL Features

  • 250mA current rating for over-current protection.
  • Very fast-acting response time for sensitive circuits.
  • Rated for 125VAC and 125VDC operation.
  • 50A breaking capacity at rated voltage.
  • Surface mount Nano2 SMF package (6.10mm x 2.69mm).

0451.250MRL Applications

  • Used in notebook PC and LCD monitor power circuits.
  • Ideal for battery charging circuit protection.
  • Suitable for networking and telecom system protection.
  • Applied in industrial equipment and white goods.

0451.250MRL FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0451.250MRL fuse?

The current rating is 250 mA (0.25 A).

What is the voltage rating of this fuse?

The voltage rating is 125 V for both AC and DC.

What is the breaking capacity of the 0451.250MRL?

The breaking capacity is 50 A at 125 VAC/VDC.

What is the response time of this fuse?

The fuse is described as very fast-acting (fast blow).

What package does the 0451.250MRL come in?

It comes in a 2-SMD square end block package (Nano2 SMF) measuring 6.10mm x 2.69mm x 2.69mm.

What is the operating temperature range?

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

Is the 0451.250MRL RoHS compliant?

Yes, it is RoHS3 compliant and halogen free.

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