Littelfuse Part Audit

flux

Found stored data for a single part project: Littelfuse 0451015.MRL. The indexed data includes project-level part metadata, symbol terminal records, footprint/model assets, and PCB footprint/model references.
Part-level metadata

Table

PropertyStored valueMissing / notes
Manufacturer Part Number / MPN0451015.MRLPresent
ManufacturerLittelfusePresent as “Manufacturer Name”
Part TypeCircuit Protection DevicesPresent
Designator PrefixFPresent at project level
MountSurface MountPresent
Datasheet URLhttp://www.littelfuse.com//media/electronics/datasheets/fuses/littelfuse_fuse_451_453_datasheet.pdf.pdfPresent
Package / CaseNot explicitly storedFootprint asset name is FUSC6127X294N.kicad_mod, but no separate “package/case” property was found
DescriptionNot foundMissing
Electrical ratingsNot foundMissing in indexed project metadata
Value / nominal ratingNot foundMissing
ToleranceNot foundMissing
Voltage ratingNot foundMissing
Current ratingNot foundMissing
Power ratingNot foundMissing
Operating temperatureNot foundMissing
Lifecycle / availability metadataNot foundMissing
Symbol terminal / pin metadata
The symbol contains two terminal entries, both with the same part UID.

Table

Terminal designatorPin numberPin typeSymbol pin positionOther stored metadataMissing values
11Unspecified{ x: -50, y: 0 }Designator Prefix: P; Part Type: TerminalNo pin name, no pin description, no electrical function
22Unspecified{ x: 50, y: 0 }Designator Prefix: P; Part Type: TerminalNo pin name, no pin description, no electrical function
PCB / asset metadata

Table

ItemStored value
Footprint assetFUSC6127X294N.kicad_mod
PCB footprint referenceFootprint node with inline asset rule: FUSC6127X294N.kicad_mod
Pads presentPad 1, Pad 2
3D model asset0451015.MRL.stp
PCB model referenceModel node with inline asset rule: 0451015.MRL.stp
Symbol asset0451015.MRL Symbol.svg
Thumbnail asset0451015.MRL-thumb.png
Notable gap / inconsistency
  • The project-level designator prefix is stored as F, appropriate for a fuse/circuit protection part.
  • The individual terminal records have Designator Prefix: P and Part Type: Terminal, which appears to describe the symbol’s terminal primitives rather than the overall part metadata.
  • No explicit package/case, electrical ratings, description, or pin function descriptions were found in the indexed project data.

flux

Audit complete. The existing Datasheet URL already points to the official Littelfuse 451/453 datasheet, so no update was required.
  • Confirmed: Littelfuse 0451015.MRL, 451 Nano², 15 A, 65 VAC/VDC, very-fast-acting, 0.0037 Ω, −55°C to +125°C, two-terminal SMD package.
  • Symbol: Correct two-pin passive topology and numbering, but both pins lack descriptions and use generic Unspecified types.
  • Footprint: Body dimensions and two-pad arrangement are broadly correct. Pads are 2.02 × 2.95 mm versus Littelfuse’s recommended 1.96 × 3.15 mm, with a slightly different center spacing.
  • Mismatches/gaps: Footprint description incorrectly references 0451005.MRL; package/case, description, current/voltage ratings, operating temperature, and other key specifications are not stored as part properties. The footprint’s minimal silkscreen also does not show the full component outline.
Fix metadata and footprint
Update properties
Correct footprint
Clean pin metadata
Run final review
2
Pin Number
2
1
Pin Number
1
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0451015.MRL

0451015.MRL thumbnail
Fast-Acting Surface-Mount Fuse – 15 A fast-acting surface-mount fuse for overcurrent protection in power supplies, DC-DC converters, automotive electronics, industrial equipment, battery-powered devices, and embedded systems. Features a 32 VDC voltage rating, 15 A current rating, and a 300 A interrupt rating at rated voltage, providing rapid protection against overloads and short circuits. Part of the Littelfuse NANO²® 451 Series, it offers low cold resistance (5.1 mΩ typical), 97.8 A²s melting I²t, fast-blow response, and is AEC-Q200 qualified for automotive applications. Designed in a compact 1206 (3216 Metric) surface-mount package, it operates over a −55°C to +125°C temperature range and carries UL and CSA safety approvals.
#Littelfuse #0451015MRL #NANO2451 #SurfaceMountFuse #FastActingFuse #CircuitProtection #OvercurrentProtection #SMDFuse #AECQ200 #PowerManagement #1206 #EmbeddedSystems

Properties

0451015.MRL

Littelfuse

Circuit Protection Devices

littelfuse.com//media/electronics/datasheets/fuses/littelfuse_fuse_451_453_datasheet.pdf.pdf

F

Surface Mount

Pricing & Availability

DPN

Stock

Qty 1

6

0–133K

$0.6972–$1.6975

1

27K

$0.2389

1

30K

$2.55

1

1K

$2.72

18

10–133K

$0.4995–$7.6336

Controls