TPSMB18A

{
  "slug": "tpsmb18a",
  "version": "0.1.0",
  "type": "component",
  "description": "Littelfuse TVS, DO-214AA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "tvs-fuse-board level protection",
    "tpsmb18a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tpsmb18a.kicad_sym",
    "tpsmb18a.kicad_mod",
    "tpsmb18a.glb",
    "tpsmb18a.step",
    "tpsmb18a.lbr",
    "docs/hero.png",
    "docs/tpsmb18a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tpsmb18a-hero.glb",
    "tpsmb18a-hero.overlay.json",
    "tpsmb18a-etched.glb"
  ],
  "component": {
    "mpn": "TPSMB18A",
    "manufacturer": "Littelfuse",
    "package": "DO-214AA",
    "pin_count": 2,
    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4d828c41cf4f2dc65f0e72dd8d6f3495.pdf",
    "parts": {
      "symbol": "tpsmb18a.kicad_sym",
      "footprint": "tpsmb18a.kicad_mod",
      "model_3d": "tpsmb18a-hero.glb",
      "model_3d_plain": "tpsmb18a-etched.glb",
      "model_3d_step": "tpsmb18a-etched.step",
      "model_3d_step_plain": "tpsmb18a.step",
      "lbr": "tpsmb18a.lbr"
    },
    "distributor_links": {
      "lcsc": "C468906",
      "digikey": "F6310TR-ND",
      "mouser": "576-TPSMB18A"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T11:36:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "F6310TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-TPSMB18A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal of the unidirectional TVS (marked by the color band), connected to the protected line, with VR 15.3 V stand-off and VBR 17.1 V typ (15.3-18.9 V min/max band at 1 mA) for TPSMB18A."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the unidirectional TVS, normally connected to ground, with maximum clamping voltage VC 25.5 V at Ipp 24.2 A for TPSMB18A."
      }
    ],
    "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 shows only a functional diagram with Cathode and Anode labels and a cathode band. It p; The VBR column headings in the table are ambiguous. The three printed values (15.30, 17.10, 18.90) a"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0788,
        "at": "2026-10-22T11:35:42"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/4d828c41cf4f2dc65f0e72dd8d6f3495.pdf",
        "pages": 6,
        "sha256": "0ac950ffb3161f3d",
        "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": "tpsmb18a.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": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tpsmb18a-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": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "8d660668a2057340d3b193e03ed17e271e9577bca2d130041bdbf9532d7da0eb",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}