Wakefield Thermal 680-125220 TO-220 heatsink

{
  "status": "incomplete-drawing-led-model",
  "manufacturer": "Wakefield Thermal",
  "mpn": "680-125220",
  "source": "https://wakefieldthermal.com/content/data_sheets/677.pdf",
  "sourcePrintedPage": 75,
  "catalogDimensionsMm": {
    "width": 45.974,
    "height": 31.75,
    "baseThicknessReference": 4.7752,
    "mountingPitch": 38.099999999999994,
    "supportHoleDiameter": 3.7337999999999996,
    "deviceHoleDiameter": 3.556,
    "finTipDiameters": [
      33.274,
      39.624
    ]
  },
  "inferredGeometry": {
    "radialFinCount": 16,
    "angularStepDegrees": 22.5,
    "phaseDegrees": 11.25,
    "finThicknessMm": 2.0,
    "outerCornerRadiusMm": 3.9623999999999997,
    "outerCornerRadiusBasis": "Assumed equal to edge-to-corner-hole-center offset; not an explicit radius callout",
    "cornerColumnShape": "Illustrative cylindrical bosses; exact profile not established"
  },
  "omitted": [
    "Two TO-220 lead-relief aperture profiles and their exact placement",
    "Fin/base root fillets, profile tolerances and anodize thickness"
  ],
  "solidValid": true,
  "volumeMm3": 20158.18553489982,
  "massAt2700KgM3Grams": 54.42710094422952,
  "catalogMassGrams": 49.9,
  "limits": [
    "Visualization only; not suitable for contact-area, airflow, fastener engagement or fabrication acceptance.",
    "The 0.188-inch base dimension is marked REF in the source.",
    "No exact manufacturer CAD was found in this search; availability is not disproved."
  ]
}