Littelfuse Part Audit
Thought for 3 mins 32 sec
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
| Property | Stored value | Missing / notes |
|---|---|---|
| Manufacturer Part Number / MPN | 0451015.MRL | Present |
| Manufacturer | Littelfuse | Present as “Manufacturer Name” |
| Part Type | Circuit Protection Devices | Present |
| Designator Prefix | F | Present at project level |
| Mount | Surface Mount | Present |
| Datasheet URL | http://www.littelfuse.com//media/electronics/datasheets/fuses/littelfuse_fuse_451_453_datasheet.pdf.pdf | Present |
| Package / Case | Not explicitly stored | Footprint asset name is FUSC6127X294N.kicad_mod, but no separate “package/case” property was found |
| Description | Not found | Missing |
| Electrical ratings | Not found | Missing in indexed project metadata |
| Value / nominal rating | Not found | Missing |
| Tolerance | Not found | Missing |
| Voltage rating | Not found | Missing |
| Current rating | Not found | Missing |
| Power rating | Not found | Missing |
| Operating temperature | Not found | Missing |
| Lifecycle / availability metadata | Not found | Missing |
The symbol contains two terminal entries, both with the same part UID.
Table
| Terminal designator | Pin number | Pin type | Symbol pin position | Other stored metadata | Missing values |
|---|---|---|---|---|---|
1 | 1 | Unspecified | { x: -50, y: 0 } | Designator Prefix: P; Part Type: Terminal | No pin name, no pin description, no electrical function |
2 | 2 | Unspecified | { x: 50, y: 0 } | Designator Prefix: P; Part Type: Terminal | No pin name, no pin description, no electrical function |
Table
| Item | Stored value |
|---|---|
| Footprint asset | FUSC6127X294N.kicad_mod |
| PCB footprint reference | Footprint node with inline asset rule: FUSC6127X294N.kicad_mod |
| Pads present | Pad 1, Pad 2 |
| 3D model asset | 0451015.MRL.stp |
| PCB model reference | Model node with inline asset rule: 0451015.MRL.stp |
| Symbol asset | 0451015.MRL Symbol.svg |
| Thumbnail asset | 0451015.MRL-thumb.png |
- The project-level designator prefix is stored as
F, appropriate for a fuse/circuit protection part. - The individual terminal records have Designator Prefix:
Pand 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.
Thought for 9 sec
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
Unspecifiedtypes. - 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
