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    "Rds(Tj) is first-order linear or a datasheet ratio — not a physics compact model.",
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    "Rds(Tj) is optional first-order linear or datasheet-ratio — not a physics compact model",
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    "Missing/non-positive I/Rds → MISSING_REQUIRED_INPUT / VALUE_MUST_BE_POSITIVE; D outside (0,1] → FRACTION_OUT_OF_RANGE; unknown current_basis or temperature_model → INVALID_MODE"
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    "Unknown current_basis or temperature_model → INVALID_MODE",
    "linear without Tj_C, or ratio without rds_ratio → MISSING_REQUIRED_INPUT",
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    "Explicit none with Tj/α/ratio present → warning TEMPERATURE_NOT_APPLIED",
    "linear with omitted α → warning RDS_TEMP_COEFF_DEFAULT (α=0.006 /°C)",
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    "Rds(Tj)/Rds(Tref) outside 0.5–2.5 → warning RDS_TEMP_FACTOR_OUTSIDE_TYPICAL"
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      "title": "IEC 60747-8 — Semiconductor devices — Discrete devices — Part 8: Field-effect transistors",
      "section": "Drain-source on-state resistance RDS(on)",
      "supports": "RDS(on) as the on-state resistance used in conduction-loss estimates",
      "kind": "standard"
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      "title": "Infineon — OptiMOS device selection for synchronous rectification",
      "section": "Conduction losses P_cond = I_RMS² × RDS(on)",
      "url": "https://www.infineon.com/dgdl/Infineon-MOSFET_OptiMOS_device_selection_for_synchronous_rectification-ApplicationNotes-v01_00-EN.pdf?fileId=8ac78c8c85ecb34701865afe0f7d3f05",
      "supports": "Vendor conduction-loss model using MOSFET RMS current (not converter output current) without an extra duty factor",
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      "url": "https://www.ti.com/lit/pdf/ssztb57",
      "supports": "Official TI conduction-loss formula using MOSFET RMS current",
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      "title": "Erickson & Maksimović — Fundamentals of Power Electronics",
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      "title": "NIST Guide to the SI (SP 811)",
      "section": "SI units for current, resistance, and power",
      "url": "https://www.nist.gov/pml/special-publication-811",
      "supports": "A, Ω, W relationships",
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