SMBJ120A

{
  "schema_version": 1,
  "type": "component",
  "slug": "smbj120a",
  "title": "SMBJ120A",
  "brief": "GOODWORK TVS, DO-214AA(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",
    "tvs-fuse-board level protection",
    "smbj120a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SMBJ120A",
    "manufacturer": "GOODWORK",
    "package": "DO-214AA(SMB)",
    "pin_count": 2,
    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3b5fd328e3cc4789bf8b080570690f05.pdf",
    "parts": {
      "symbol": "smbj120a.kicad_sym",
      "footprint": "smbj120a.kicad_mod",
      "model_3d": "smbj120a-hero.glb",
      "model_3d_plain": "smbj120a-etched.glb",
      "model_3d_step": "smbj120a-etched.step",
      "model_3d_step_plain": "smbj120a.step",
      "lbr": "smbj120a.lbr"
    },
    "distributor_links": {
      "lcsc": "C50325496",
      "digikey": "SMBJ120ALFTR-ND",
      "mouser": "576-SMBJ120A"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T05:37:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SMBJ120ALFTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-SMBJ120A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, marked by the color band on the unidirectional SMBJ120A (VRWM 120 V, VBR 133-153 V at 1 mA, VC 193 V at Ipp 3.1 A)."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode, the end opposite the color band on the unidirectional SMBJ120A (600 W peak power at 10/1000 µs)."
      }
    ],
    "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 text gives no pin numbers or pinout table. It only says the color band marks the catho"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0668,
        "at": "2026-10-22T05:36:18"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3b5fd328e3cc4789bf8b080570690f05.pdf",
        "pages": 7,
        "sha256": "30a80bd88d27f7ca",
        "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": "smbj120a.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": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "smbj120a-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": "f7519cdbef3d7ef5cbda2546828dff321794d771430d05e3caf5cd95c0d2e7e2",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GOODWORK",
      "Package": "DO-214AA(SMB)",
      "Category": "TVS/Fuse/Board Level Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "2. Mounted on Copper Pad area of 5.0mm (.013mm Thick) to each terminal.",
        "page": 1,
        "doc": "ds.pdf",
        "material": "Copper"
      },
      "version": 1,
      "datasheet_sha256": "30a80bd88d27f7caffd9afcabffbd8f28c60db8611ae9529bc4b616f1a77a8c3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "30a80bd88d27f7caffd9afcabffbd8f28c60db8611ae9529bc4b616f1a77a8c3",
      "rows": [
        {
          "name": "Reverse Stand-off Voltage",
          "symbol": "VRWM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Breakdown Voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 133,
          "typ": null,
          "max": 153,
          "conditions": "@IT = 1 mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Test Current",
          "symbol": "IT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Clamping Voltage",
          "symbol": "VC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 193,
          "conditions": "@Ipp",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak Pulse Current",
          "symbol": "Ipp",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3.1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reverse Leakage Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@VRWM",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak Power Dissipation",
          "symbol": "PPK",
          "kind": "absolute_maximum",
          "unit": "Watts",
          "min": 600,
          "typ": null,
          "max": null,
          "conditions": "TA=25 C, TP=1ms (Minimum)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Forward Surge Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "Amps",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "8.3ms 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": "Typical Thermal Resistance, junction to case",
          "symbol": "RθJ-C",
          "kind": "thermal",
          "unit": "C/W",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "Between junction and case",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical Thermal Resistance, junction to air",
          "symbol": "RθJ-A",
          "kind": "thermal",
          "unit": "C/W",
          "min": null,
          "typ": 95,
          "max": null,
          "conditions": "Between junction and Air",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "smbj120a"
  ],
  "discovery_pitch": "SMBJ120A (GOODWORK) 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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  "visibility": {
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}