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0453003.MR Board mount fuse rated 3A at 125V AC/DC with fast blow response. Surface mount package in 2-SMD square end block.
Mfr Part #:

0453003.MR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Board mount fuse rated 3A at 125V AC/DC with fast blow response. Surface mount package in 2-SMD square end block.
✓ Total Stock: 32,000 pcs
$ Price Range: $0.91 - $1.99

0453003.MR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
32,000 pcs
On Request
32000 pcs On Request 1 On Request On Request 16+ 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.

0453003.MR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Approval Agency
Automotive Grade
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Industrial Grade
Length
Medical Grade
Melting I²t
Military Grade
Mounting Type
Operating Temperature
Response Time
Tape & Reel
Voltage Rating
Width
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0453003.MR Description

Short technical summary and product information.

The Littelfuse 0453003.MR is a 3A, 125V AC/DC fast blow board mount fuse designed for overcurrent protection in compact electronic assemblies. It features a 50A breaking capacity at rated voltage and a melting I²t of 1.65 A²s, ensuring reliable interruption under fault conditions.

 

This surface mount fuse is housed in a 2-SMD square end block package measuring 6.10mm x 2.69mm x 2.69mm, making it suitable for space-constrained PCB layouts. It operates over a wide temperature range of -55°C to 125°C and carries CSA, PSE, and UL safety approvals.

 

Typical applications include overcurrent protection in consumer electronics, industrial controls, and DC power supplies where fast response is critical. The fast blow characteristic provides rapid clearing during short circuits, protecting sensitive downstream components.

0453003.MR Quick Information

Product Type: Fuse
Series: 453
Canonical Name: Littelfuse 0453003.MR 3A 125V Fast Blow Surface Mount Fuse
Subcategory: Surface Mount Fuse

0453003.MR Compliance

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

0453003.MR Estimated Pricing

Qty Low High
1+ $1.99 $1.99
5+ $1.74 $1.74
10+ $1.63 $1.63
50+ $1.37 $1.37
100+ $1.17 $1.17
250+ $1.14 $1.14
500+ $0.96 $0.96
1,000+ $0.91 $0.91

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

0453003.MR Features

  • Rated for 3A at 125V AC/DC.
  • Fast blow response time.
  • 50A breaking capacity at rated voltage.
  • Surface mount 2-SMD package.
  • CSA, PSE, UL approved.

0453003.MR Applications

  • Overcurrent protection for compact circuit boards.
  • Used in consumer electronics and industrial controls.
  • Suitable for DC power supply protection.
  • Ideal for space-constrained surface mount designs.

0453003.MR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0453003.MR fuse?

The current rating is 3 A.

What is the voltage rating of this fuse?

The voltage rating is 125 V AC/DC.

What is the breaking capacity of the 0453003.MR?

The breaking capacity is 50 A at rated voltage.

What is the response time of this fuse?

The response time is fast blow.

What package does the 0453003.MR come in?

It comes in a 2-SMD, square end block package.

What is the operating temperature range?

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

What safety approvals does this fuse have?

It is approved by CSA, PSE, and UL.

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