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0452.500MR FUSE BOARD MNT 500MA 125VAC/VDC. Littelfuse NANO2 Slo-Blo surface mount fuse with 50A interrupting rating.
Mfr Part #:

0452.500MR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
FUSE BOARD MNT 500MA 125VAC/VDC. Littelfuse NANO2 Slo-Blo surface mount fuse with 50A interrupting rating.
Total Stock: 905 pcs

0452.500MR Available from 1 distributor

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0452.500MR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Body Material
Breaking Capacity @ Rated Voltage
Current Rating
Current Rating (Amps)
DC Cold Resistance
Fuse Type
Height
Length
Melting I²t
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Packaging Type
Response Time
Standard Package Qty
Tape & Reel
Termination Finish
Termination Material
Voltage Rating
Width

0452.500MR Description

Short technical summary and product information.

The 0452.500MR is a Littelfuse NANO2 Slo-Blo surface mount fuse rated for 500 mA at 125 VAC/VDC. It offers a slow-blow time-delay response, making it suitable for applications with inrush currents that would otherwise cause fast-acting fuses to open. The fuse has a breaking capacity of 50 A at 125 VAC/VDC and a DC cold resistance of 0.700 Ω. Its melting I²t is 0.24 A²s.

 

The fuse is housed in a 2-SMD square end block package measuring 6.10 mm x 2.69 mm x 2.69 mm. It features a ceramic body with tin-lead alloy terminations and is designed for surface mount assembly. The operating temperature range is -55°C to 125°C.

 

The 0452.500MR carries CSA and UR agency approvals (UL E10480, CSA LR 29862). It is supplied in tape and reel packaging with a standard quantity of 1000 pieces per reel. Note that this part number is non-RoHS compliant due to tin-lead terminations.

0452.500MR Quick Information

Product Type: Fuse
Series: 452/454 Series
Canonical Name: Littelfuse NANO2 Slo-Blo 500mA 125V Surface Mount Fuse
Subcategory: Board Mount Fuse

0452.500MR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): MSL 1 - Unlimited
REACH Status: REACH Unaffected
Lead Free: Not Lead Free

0452.500MR Features

  • Rated for 500 mA continuous current.
  • Withstands 125 VAC/VDC operation.
  • Slow-blow time-delay response.
  • Surface mount 2-SMD package.
  • Ceramic body with tin-lead terminations.

0452.500MR Applications

  • Protects circuits from overcurrent conditions.
  • Ideal for power supply input protection.
  • Suitable for board-level applications.
  • Handles inrush currents in capacitive loads.

0452.500MR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0452.500MR?

The current rating is 500 mA (0.5 A).

What voltage rating does this fuse have?

It is rated for 125 VAC and 125 VDC.

What is the breaking capacity of the 0452.500MR?

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

Is this a fast-acting or slow-blow fuse?

It is a slow-blow (Slo-Blo) fuse with time-delay characteristics.

What package does the 0452.500MR come in?

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

What is the operating temperature range?

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

What agency approvals does this fuse have?

It is recognized by UL (E10480) and certified by CSA (LR 29862).

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