Part Audit Review

Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.

Thought for 18 sec

flux

I’ll audit the part metadata, symbol, and 12-pad footprint, locate the official datasheet if needed, update the Datasheet property, then report specifications and discrepancies.

Worked for 5 mins 10 sec

Created a project doc

Part Audit Report

View Document

Part Audit Report Identification

MPN: FA2898-ALD
Manufacturer: Coilcraft
Part type: Surface-mount flyback transformer
Application: 25 W Power-over-Ethernet supply using TI LM5072
Pin count: 12
Official datasheet: https://www.coilcraft.com/getmedia/0f1e71a9-8c8b-4257-9751-ce7cb42acf29/fa2677.pdf
Package property: Not explicitly populated; custom assets are FA2898_COC.kicad_mod and FA2898_COC.step.
Description property: Not explicitly populated.

The final D suffix is the packaging code for a 13-inch machine-ready reel (175 pieces). It does not change the electrical or mechanical component geometry.

Key Datasheet Specifications Datasheet Pin / Winding Map

Required PCB paralleling for the rated application:

flux

Audit complete. I set the official Coilcraft datasheet URL and normalized the manufacturer/type properties; the 12-pin numbering is correct, but the symbol lacks winding/polarity information and the footprint pads appear undersized versus Coilcraft’s recommended land pattern.

Full specifications and mismatch details are in Part Audit Report. I also filed an internal part-quality report for the symbol and footprint issues.

Fix symbol and footprint

Fix terminal names

Correct footprint pads

Add package metadata

Files

Pins

Symbol

Layout

3D View

Pin Number

Part Audit Report

Identification

MPN: FA2898-ALD
Manufacturer: Coilcraft
Part type: Surface-mount flyback transformer
Application: 25 W Power-over-Ethernet supply using TI LM5072
Pin count: 12
Official datasheet: https://www.coilcraft.com/getmedia/0f1e71a9-8c8b-4257-9751-ce7cb42acf29/fa2677.pdf
Package property: Not explicitly populated; custom assets are FA2898_COC.kicad_mod and FA2898_COC.step.
Description property: Not explicitly populated.

The final D suffix is the packaging code for a 13-inch machine-ready reel (175 pieces). It does not change the electrical or mechanical component geometry.

Key Datasheet Specifications

Table

Parameter	Value
Intended input range	18–57 V
Main output	5 V, 5 A
Auxiliary output	11 V, 20 mA
Power	25 W
Switching frequency	250 kHz
Primary inductance	50 µH ±10%
Minimum inductance at 2.9 A	40.8 µH
Maximum primary DCR	26 mΩ
Maximum secondary DCR	4.0 mΩ
Maximum auxiliary DCR	315 mΩ
Maximum leakage inductance	1.05 µH
Primary:secondary turns ratio	1:0.18
Primary:auxiliary turns ratio	1:0.41
Isolation	1500 Vrms primary/auxiliary to secondary
Ambient temperature	−40°C to +125°C
Body envelope	30.00 × 20.57 × 11.43 mm max
Terminal pitch	3.0 mm

Datasheet Pin / Winding Map

Table

Pins	Function
1–4	Primary winding section
2–3	Primary winding section
5–6	Auxiliary winding
12–7	Secondary winding section
11–8	Secondary winding section
10–9	Secondary winding section

Required PCB paralleling for the rated application:

Primary: 1 + 2, and 3 + 4
Secondary: 10 + 11 + 12, and 7 + 8 + 9
Auxiliary remains on 5–6

Cross-Check Results

Metadata

Pass: MPN matches FA2898-ALD.
Pass after update: Official Coilcraft datasheet URL is now set.
Pass after update: Manufacturer is set to Coilcraft and Part Type to Transformer.
Mismatch / missing: No explicit package property.
Mismatch / missing: No explicit functional description property.

Schematic Symbol

Pass: 12 terminals are present and numbered 1–12.
Major mismatch: The rendered symbol is only a rectangular box with numbered pins. It contains no transformer windings, polarity dots, isolation barrier, or primary/secondary/auxiliary grouping.
Mismatch: Every pin name is only its number; all pin descriptions and electrical types are unspecified.
Risk: A schematic user cannot infer which pins form each winding or which ends must be paralleled with matching polarity. This can cause incorrect winding connections.

Recommended descriptions:

Table

Pin	Recommended description
1	Primary winding A, undotted end
2	Primary winding B, undotted end
3	Primary winding B, dotted end
4	Primary winding A, dotted end
5	Auxiliary winding end
6	Auxiliary winding end
7	Secondary winding A, undotted end
8	Secondary winding B, undotted end
9	Secondary winding C, undotted end
10	Secondary winding C, dotted end
11	Secondary winding B, dotted end
12	Secondary winding A, dotted end

Footprint

Pass: 12 pads exist, numbered 1–12.
Pass: Pad pitch is 3.0 mm and row arrangement/pin numbering are consistent with the mechanical drawing.
Likely mismatch: Existing copper pads are approximately 2.743 × 0.762 mm. The Coilcraft recommended land pattern indicates approximately 3.30 × 1.27 mm lands. Existing pads are therefore about 17% shorter and 40% narrower than the recommended lands.
Risk: Reduced solder fillet area and lower assembly tolerance; footprint should be corrected before production.
Note: The pad row center geometry appears consistent with the package drawing; the concern is pad size, not pad count or pitch.

Overall Assessment

The part identity and 12-pin numbering are correct, and the official datasheet is now attached. However, the current symbol is not a meaningful transformer symbol, terminal descriptions are absent, and the footprint pads appear undersized relative to Coilcraft’s recommended land pattern. The part should not be treated as production-ready until the symbol and footprint are corrected and re-verified against the datasheet drawing.

Identification
Key Datasheet Specifications
Datasheet Pin / Winding Map
Cross-Check Results
Metadata
Schematic Symbol
Footprint
Overall Assessment