SMA6J18A-Q

{
  "schema_version": 1,
  "type": "component",
  "slug": "sma6j18a-q",
  "title": "SMA6J18A-Q",
  "brief": "BOURNS TVS, SMA(DO-214AC). 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",
    "sma6j18a-q",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SMA6J18A-Q",
    "manufacturer": "BOURNS",
    "package": "SMA(DO-214AC)",
    "pin_count": 2,
    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/25750500217e0836c676074c7f0158ff.pdf",
    "parts": {
      "symbol": "sma6j18a-q.kicad_sym",
      "footprint": "sma6j18a-q.kicad_mod",
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      "model_3d_plain": "sma6j18a-q-etched.glb",
      "model_3d_step": "sma6j18a-q-etched.step",
      "model_3d_step_plain": "sma6j18a-q.step",
      "lbr": "sma6j18a-q.lbr"
    },
    "distributor_links": {
      "lcsc": "C1847759",
      "digikey": "118-SMA6J18A-QTR-ND",
      "mouser": "652-SMA6J18A-Q"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T19:36:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "118-SMA6J18A-QTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "652-SMA6J18A-Q",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode terminal, marked by the cathode band on this unidirectional device; connect to the protected line, which has a working peak reverse voltage of 18 V and a breakdown voltage of 20.0 to 22.1 V at 1.0 mA, clamping at a maximum of 29.2 V at 20.6 A."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode terminal at the end opposite the cathode band, normally connected to ground; the device handles 600 W peak pulse power (TP = 1 ms)."
      }
    ],
    "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 for the SMA (DO-214AC) package. It only says that the cathode ba; The datasheet gives no pin-level descriptions. These were built from the polarity note and the SMA6J"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0929,
        "at": "2026-10-26T19:36:38"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/25750500217e0836c676074c7f0158ff.pdf",
        "pages": 6,
        "sha256": "e9eba128067c04f1",
        "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": "sma6j18a-q.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          2.7,
          2.22
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1cfddd4e3b1bf22b8fc6ee3258c2aade882ed7b85b528e23b9db42437775a1db",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sma6j18a-q-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": "1f28d2d8dacce21522751015d9589ccfd3c0efb04cf35f1bae6afb325f42ff67",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BOURNS",
      "Package": "SMA(DO-214AC)",
      "Category": "TVS/Fuse/Board Level Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "2. Mounted on 5.0 mm2 (0.03 mm thick) copper pads to each terminal.",
        "page": 1,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "e9eba128067c04f1e380b938456ca58d47786e9abcfb29bc67143ab55ccd880f"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e9eba128067c04f1e380b938456ca58d47786e9abcfb29bc67143ab55ccd880f",
      "rows": [
        {
          "name": "Breakdown Voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 20,
          "typ": null,
          "max": 22.1,
          "conditions": "@ IT = 1.0 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Working Peak Reverse Voltage",
          "symbol": "VRWM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 18,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Leakage",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "@ VRWM",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Voltage (Clamping)",
          "symbol": "VRSM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 29.2,
          "conditions": "@ IRSM",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Surge Current",
          "symbol": "IRSM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 20.6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Breakdown voltage tolerance (suffix A)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "Suffix A: 5 % tolerance unidirectional device",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Minimum Peak Pulse Power Dissipation",
          "symbol": "PPK",
          "kind": "absolute_maximum",
          "unit": "Watts",
          "min": null,
          "typ": null,
          "max": 600,
          "conditions": "TP = 1 ms",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Forward Surge Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "Amps",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "8.3 ms single half sine wave superimposed on rated load (JEDEC Method), unidirectional only",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "SMA6J18A-Q (BOURNS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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}