Part Audit Review

cherepanyadima

cherepanyadima

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.

flux

I’ll audit the part metadata and geometry, locate the official datasheet if needed, update its Datasheet property, then report any symbol, footprint, or pin-description mismatches.
Created a project doc

Part Audit

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Part Audit Identification
  • Project/part name: WE-MPSB_1812
  • Inferred exact MPN from the included official 3D-model filename and matching manufacturer data: 74279226101
  • Manufacturer: Würth Elektronik eiSos
  • Product: WE-MPSB EMI Multilayer Power Suppression Bead
  • Package: 1812, SMD, 2-terminal, non-polarized
  • Official datasheet: https://www.we-online.com/components/products/datasheet/74279226101.pdf
  • Part definition currently exposes two passive terminals. No BOM entry is generated in the part-editor project itself.
Key Datasheet Specifications
Typical applications include high-inrush-current filtering, motor interference suppression, DC/DC and DC power-supply EMI suppression, and broadband suppression.
Metadata Review Present

flux

Audit complete. I added and verified the official Würth Elektronik datasheet URL; the two-pin passive mapping and 1812 footprint match the datasheet, but the schematic symbol body is missing, pin descriptions are absent, and key MPN/manufacturer/electrical metadata is incomplete. Full specifications and dimensional checks are in Part Audit; I also filed a part-quality report for the blank symbol.
Fix part metadata
Fix schematic symbol
Improve part completeness
Verify 3D alignment
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Files

Pins

Symbol

Layout

Preview

1
Pin Number
1
2
Pin Number
2
Part Audit
Identification
  • Project/part name: WE-MPSB_1812
  • Inferred exact MPN from the included official 3D-model filename and matching manufacturer data: 74279226101
  • Manufacturer: Würth Elektronik eiSos
  • Product: WE-MPSB EMI Multilayer Power Suppression Bead
  • Package: 1812, SMD, 2-terminal, non-polarized
  • Official datasheet: https://www.we-online.com/components/products/datasheet/74279226101.pdf
  • Part definition currently exposes two passive terminals. No BOM entry is generated in the part-editor project itself.
Key Datasheet Specifications

Table

ParameterDatasheet value
Impedance at 100 MHz100 Ω ±25%
Maximum impedance160 Ω typical at 1100 MHz
Impedance at 1 GHz150 Ω
Rated current8 A maximum at ΔT = 40 K
DC resistance6 mΩ maximum; 4.5 mΩ typical at 20 °C
Operating temperature−55 °C to +125 °C
Body dimensions4.5 ±0.25 × 3.2 ±0.25 × 2.3 ±0.25 mm
Terminal length0.5 ±0.2 mm
Qualification/complianceAEC-Q200 Grade 1; RoHS; REACH; halogen-free
LifecycleActive production per manufacturer product page
Typical applications include high-inrush-current filtering, motor interference suppression, DC/DC and DC power-supply EMI suppression, and broadband suppression.
Metadata Review
Present
  • Part/project name identifies the WE-MPSB 1812 family/package.
  • Pin count is 2.
  • Both terminals are numbered 1 and 2 and typed Passive.
  • Official STEP model asset 74279226101 (rev1).stp is included.
  • Footprint asset WE-MPSB_1812.kicad_mod is included.
  • The verified official Datasheet URL has now been added to both terminal definitions.
Missing or incomplete
  • Manufacturer Part Number property is not set; it should be 74279226101 if the included STEP model is intentionally the exact ordering code.
  • Manufacturer Name is not set; it should be Würth Elektronik eiSos.
  • Package or Case Code is not set; it should identify 1812 / 4532 metric.
  • The part description is only WE-MPSB_1812; it does not state that this is an EMI multilayer power-suppression ferrite bead.
  • Electrical properties such as impedance, current rating, DCR, and operating temperature are not represented in the available properties.
Symbol Cross-check
  • Pin count and numbering: Correct: two terminals, numbered 1 and 2.
  • Electrical type: Correct: both ends are passive and the device is non-polarized.
  • Pin descriptions: Missing. Neither terminal has a Pin Description. Suggested descriptions are Ferrite bead terminal 1 (non-polarized) and Ferrite bead terminal 2 (non-polarized).
  • Symbol graphic: Mismatch. The schematic render is blank because only the two terminal definitions are present; there is no visible ferrite-bead/inductor body graphic connecting them. The part will therefore be difficult or impossible to recognize when placed in a schematic even though the terminal definitions themselves are electrically valid.
Footprint Cross-check
The embedded footprint matches the manufacturer recommended land pattern:
  • Pad centers: ±2.7 mm, giving 5.4 mm center-to-center.
  • Each pad: 1.9 × 3.0 mm.
  • Total pad-span: 7.3 mm.
  • Inner pad gap: 3.5 mm.
  • Fabrication body outline: 4.5 × 3.2 mm.
  • Two rectangular SMD pads numbered 1 and 2, consistent with a non-polarized bead.
No footprint dimensional mismatch was found. The courtyard is 7.6 × 3.6 mm, which provides only about 0.15 mm beyond the 3.0 mm pad height on each side; this is tight but not contradicted by the recommended land pattern.
3D Model Review
The included STEP asset filename exactly identifies MPN 74279226101. The model is placed at origin with unity scale and zero rotation. A numerical body-envelope verification was not available from the current model metadata, so visual/mechanical alignment should still be checked in the part editor, but no explicit model-placement mismatch was detected.
Mismatch Summary
  1. Major: No visible ferrite-bead schematic symbol body.
  2. Moderate: Missing terminal Pin Description properties.
  3. Moderate: Missing explicit MPN, manufacturer, package, product description, and principal electrical ratings in part metadata.
  4. Pass: Two-terminal passive pin mapping is correct.
  5. Pass: Footprint pad geometry and fabrication outline agree with the official recommended land pattern and package dimensions.
  6. Updated: Official manufacturer Datasheet URL is now set and verified by schematic readback.

  • Identification

  • Key Datasheet Specifications

  • Metadata Review

  • Present

  • Missing or incomplete

  • Symbol Cross-check

  • Footprint Cross-check

  • 3D Model Review

  • Mismatch Summary