RF1256-000

{
  "slug": "rf1256-000",
  "version": "0.1.0",
  "type": "component",
  "description": "Littelfuse ESD And Surge Protection (TVS/ESD), 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "rf1256-000",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rf1256-000.kicad_sym",
    "rf1256-000.kicad_mod",
    "rf1256-000.glb",
    "rf1256-000.step",
    "rf1256-000.lbr",
    "docs/hero.png",
    "docs/rf1256-000-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rf1256-000-hero.glb",
    "rf1256-000-hero.overlay.json"
  ],
  "component": {
    "mpn": "RF1256-000",
    "manufacturer": "Littelfuse",
    "package": "0603",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901695610343424",
    "parts": {
      "symbol": "rf1256-000.kicad_sym",
      "footprint": "rf1256-000.kicad_mod",
      "model_3d": "rf1256-000-hero.glb",
      "model_3d_plain": "rf1256-000.glb",
      "model_3d_step": "rf1256-000-etched.step",
      "model_3d_step_plain": "rf1256-000.step",
      "lbr": "rf1256-000.lbr"
    },
    "distributor_links": {
      "lcsc": "C207186"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T11:51:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Terminal 1",
        "type": "passive",
        "description": "One of two interchangeable end terminals of the bi-directional ESD protector, connected to the protected line, with 24 VDC max operating voltage and 0.25 pF typical capacitance."
      },
      {
        "number": "2",
        "name": "Terminal 2",
        "type": "passive",
        "description": "Second interchangeable end terminal of the bi-directional ESD protector, connected to ground or the reference return, with 24 VDC max operating voltage and no polarity marking."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet is for PESD0603-240. It never mentions RF1256-000, so the match between this MPN and t; The datasheet shows no pin numbers or pin names. It shows a two-terminal 0603 chip with end terminal; Which terminal goes to the signal line and which to ground is my assumption from typical use. The da",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.1284,
        "at": "2026-10-09T11:48:46"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901695610343424",
        "pages": 9,
        "sha256": "9b848450aa5a87cf",
        "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": "rf1256-000.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          0.87,
          0.66
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b6c3db4577543309a6fc7af7bc65e6ca9d773b00c75ad23026795f850c77df21",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rf1256-000-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          0.87,
          0.66
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6793113da17c6761e0e4f0f1f3b175a0dbb5d73731e966be04870fcd44f7d2a4",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}