main
Ray Set visibility: public 46ae9b0 2d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "murs240t3g",
  "title": "MURS240T3G",
  "brief": "onsemi Diodes - Fast Recovery Rectifiers, SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "diodes",
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    "extractor-text"
  ],
  "component": {
    "mpn": "MURS240T3G",
    "manufacturer": "onsemi",
    "package": "SMB",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Diodes - Fast Recovery Rectifiers",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/murs240t3-d.pdf",
    "parts": {
      "symbol": "murs240t3g.kicad_sym",
      "footprint": "murs240t3g.kicad_mod",
      "model_3d": "murs240t3g-hero.glb",
      "model_3d_plain": "murs240t3g-etched.glb",
      "model_3d_step": "murs240t3g-etched.step",
      "model_3d_step_plain": "murs240t3g.step",
      "lbr": "murs240t3g.lbr"
    },
    "distributor_links": {
      "lcsc": "C231289"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:44:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 913 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode lead, identified by the polarity band on the SMB (Case 403A) package; device blocks up to 400 V (VRRM/VRWM/VR) for MURS240T3G."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode lead at the end opposite the polarity band; average forward current 2.0 A at TL = 125°C, 35 A non-repetitive surge."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet prints no pin numbers or pin table for the SMB package. It states only that the polari"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0605,
        "at": "2026-10-22T22:44:34"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/murs240t3-d.pdf",
        "pages": 5,
        "sha256": "5330b5278680b474",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "murs240t3g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3.55,
          2.15
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "murs240t3g-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8dd546362b221daa5eac2a1fb16771768ca66c9f4cf3777a7644d9f231b0868b",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SMB",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "5330b5278680b474a742c1a363e50cb0efa0f60b23a2456ccb7664022c1b67cb",
      "rows": [
        {
          "name": "Peak Repetitive Reverse Voltage / Working Peak Reverse Voltage / DC Blocking Voltage",
          "symbol": "VRRM/VRWM/VR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "MURS240T3G/NRVUS240T3G",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Average Rectified Forward Current",
          "symbol": "IF(AV)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "@ TL = 150°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Average Rectified Forward Current",
          "symbol": "IF(AV)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "@ TL = 125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Non-Repetitive Peak Surge Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "Surge applied at rated load conditions halfwave, single phase, 60 Hz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 175,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Lead",
          "symbol": "RJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 13,
          "conditions": "TL = 25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Instantaneous Forward Voltage",
          "symbol": "vF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.3,
          "conditions": "iF = 2.0 A, TJ = 25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Instantaneous Forward Voltage",
          "symbol": "vF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.05,
          "conditions": "iF = 2.0 A, TJ = 150°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Instantaneous Reverse Current",
          "symbol": "iR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Rated DC Voltage, TJ = 25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Instantaneous Reverse Current",
          "symbol": "iR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Rated DC Voltage, TJ = 150°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Recovery Time",
          "symbol": "trr",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 65,
          "conditions": "iF = 1.0 A, di/dt = 50 A/µs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Recovery Time",
          "symbol": "trr",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "iF = 0.5 A, iR = 1.0 A, IR to 0.25 A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Forward Recovery Time",
          "symbol": "tfr",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "iF = 1.0 A, di/dt = 100 A/µs, Rec. to 1.0 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Typical Capacitance at 0 V",
          "symbol": "C",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 26,
          "max": 30,
          "conditions": "VR = 0 V (typical 26 pF from Fig. 6, maximum 30 pF from Fig. 7)",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
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  ],
  "discovery_triggers": [
    "murs240t3g"
  ],
  "discovery_pitch": "MURS240T3G (onsemi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "murs240t3g.step",
    "murs240t3g.lbr",
    "docs/hero.png",
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    "viewers/symbol.html",
    "viewers/footprint.html",
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    "murs240t3g-etched.glb"
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  "visibility": {
    "public": true
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}