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Ray Set visibility: public 4d3c813 4h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "us3mb",
  "title": "US3MB",
  "brief": "Shandong Jingdao Microelectronics 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": [
    "component",
    "diodes",
    "us3mb",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "US3MB",
    "manufacturer": "Shandong Jingdao Microelectronics",
    "package": "SMB",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Diodes - Fast Recovery Rectifiers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9e270976c07abd85e588914b3d2db954.pdf",
    "parts": {
      "symbol": "us3mb.kicad_sym",
      "footprint": "us3mb.kicad_mod",
      "model_3d": "us3mb-hero.glb",
      "model_3d_plain": "us3mb-etched.glb",
      "model_3d_step": "us3mb-etched.step",
      "model_3d_step_plain": "us3mb.step",
      "lbr": "us3mb.lbr"
    },
    "distributor_links": {
      "lcsc": "C64967",
      "digikey": "5399-US3MBTR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T05:32:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "5399-US3MBTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal of the US3MB rectifier diode; the datasheet gives no pin-specific electrical limits beyond the device ratings."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the US3MB rectifier diode; the datasheet gives no pin-specific electrical limits beyond the device ratings."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-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's PINNING table lists only two pins (1 = Cathode, 2 = Anode) for the SMB package, and ; The datasheet does not explicitly state which pad carries the cathode band on the SMB outline; pin 1"
        ],
        "pages_sent": 3,
        "cost_usd": 0.0151,
        "at": "2026-10-21T05:29:08"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9e270976c07abd85e588914b3d2db954.pdf",
        "pages": 3,
        "sha256": "2ae7b42c4e442220",
        "source_tier": "lcsc"
      },
      "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": [
      {
        "file": "us3mb.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.3,
          3.55,
          2.15
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "us3mb-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.3,
          3.55,
          2.15
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5012c0ab1e91b4472d67bda003977bb37d272d66b98620cef46fc0dc231fc71d",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shandong Jingdao Microelectronics",
      "Package": "SMB",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2ae7b42c4e442220cd1186f5186cc626a2cd30ba64c95facb94b9676e4ee39f9",
      "rows": [
        {
          "name": "Maximum Repetitive Peak Reverse Voltage",
          "symbol": "VRRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "US3MB column",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum RMS Voltage",
          "symbol": "VRMS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "US3MB column",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC Blocking Voltage",
          "symbol": "VDC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "US3MB column",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Average Forward Rectified Current",
          "symbol": "IF(AV)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "Single phase half-wave 60 Hz, resistive or inductive load",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Forward Surge Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 90,
          "conditions": "8.3 ms single half sine wave superimposed on rated load (JEDEC method)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and Storage Temperature Range",
          "symbol": "Tj, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Instantaneous Forward Voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.3,
          "conditions": "at 3 A",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC Reverse Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Ta = 25 °C, at rated DC blocking voltage",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC Reverse Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "Ta = 125 °C, at rated DC blocking voltage",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Recovery Time",
          "symbol": "trr",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "IF = 0.5 A, IR = 1 A, Irr = 0.25 A",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical Thermal Resistance, junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "P.C.B. mounted with 2.0 x 2.0 in (5 x 5 cm) copper pad areas",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical Thermal Resistance, junction to case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "us3mb"
  ],
  "discovery_pitch": "US3MB (Shandong Jingdao Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "us3mb.kicad_sym",
    "us3mb.kicad_mod",
    "us3mb.glb",
    "us3mb.step",
    "us3mb.lbr",
    "docs/hero.png",
    "docs/us3mb-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "us3mb-hero.glb",
    "us3mb-hero.overlay.json",
    "us3mb-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}