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0451.500MR Board mount fuse rated 500mA at 125VAC/VDC with fast blow response. Surface mount package in 2-SMD square end block form factor.
Mfr Part #:

0451.500MR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Board mount fuse rated 500mA at 125VAC/VDC with fast blow response. Surface mount package in 2-SMD square end block form factor.
Total Stock: 3,000 pcs
$ Price Range: $0.52

0451.500MR Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,000 pcs
3000 pcs On Request 1 On Request On Request On Request On Request On Request

0451.500MR Specifications Quick View

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

0451.500MR Description

Short technical summary and product information.

The Littelfuse 0451.500MR is a board mount fuse designed for surface mount applications. It is rated for 500mA at 125VAC/VDC with a fast blow response time, providing quick overcurrent protection.

 

This fuse offers a breaking capacity of 50A at rated voltage and a melting I²t of 0.0795. It operates over a wide temperature range of -55°C to 125°C, making it suitable for demanding environments.

 

The 0451.500MR is housed in a 2-SMD, square end block package with dimensions of 6.10mm x 2.69mm x 2.69mm. Its compact size and surface mount design enable high-density circuit board assembly.

0451.500MR Quick Information

Product Type: Board Mount Fuse
Series: 451
Canonical Name: Board Mount Fuse, 500mA, 125VAC/VDC
Subcategory: Surface Mount Fuses

0451.500MR Compliance

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

0451.500MR Estimated Pricing

Qty Low High
1,000+ $0.52 $0.52

Estimated market price range - modelled values for guidance only, not live distributor offers.

0451.500MR Features

  • Board mount fuse for surface mount applications.
  • Rated for 500mA at 125VAC/VDC.
  • Fast blow response time.
  • 50A breaking capacity at rated voltage.
  • Operating temperature range -55°C to 125°C.

0451.500MR Applications

  • Overcurrent protection for circuit boards.
  • Suitable for high-density SMT designs.
  • Protects sensitive components from fault currents.

0451.500MR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0451.500MR fuse?

500 mA.

What is the voltage rating of the 0451.500MR fuse?

125 VAC/VDC.

What is the breaking capacity of the 0451.500MR fuse?

50A at rated voltage.

What is the response time of the 0451.500MR fuse?

Fast Blow.

What is the package/case of the 0451.500MR fuse?

2-SMD, Square End Block.

What is the melting I²t of the 0451.500MR fuse?

0.0795.

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