1.5KE27A-B

{
  "slug": "1-5ke27a-b",
  "version": "0.1.0",
  "type": "component",
  "description": "Littelfuse ESD And Surge Protection (TVS/ESD), DO-201. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "1.5ke27a-b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "1-5ke27a-b.kicad_sym",
    "1-5ke27a-b.kicad_mod",
    "1-5ke27a-b.glb",
    "1-5ke27a-b.step",
    "1-5ke27a-b.lbr",
    "docs/hero.png",
    "docs/1-5ke27a-b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1-5ke27a-b-hero.glb",
    "1-5ke27a-b-hero.overlay.json"
  ],
  "component": {
    "mpn": "1.5KE27A-B",
    "manufacturer": "Littelfuse",
    "package": "DO-201",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590891676775108608",
    "parts": {
      "symbol": "1-5ke27a-b.kicad_sym",
      "footprint": "1-5ke27a-b.kicad_mod",
      "model_3d": "1-5ke27a-b-hero.glb",
      "model_3d_step": "1-5ke27a-b.step",
      "lbr": "1-5ke27a-b.lbr",
      "model_3d_plain": "1-5ke27a-b.glb"
    },
    "distributor_links": {
      "lcsc": "C3719385",
      "digikey": "13-1.5KE27A/BCT-ND",
      "mouser": "603-1.5KE27A/B"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T07:18:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "13-1.5KE27A/BCT-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "603-1.5KE27A/B",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "The cathode is the terminal marked by the color band on the DO-201 body, which applies to uni-directional products only. Its reverse stand-off voltage is VR 23.10 V min and its breakdown voltage is 25.70 V typ at 1 mA for the 1.5KE27A."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "The anode is the terminal opposite the cathode band on the uni-directional 1.5KE27A. The device clamps at 37.5 V maximum at 40.5 A peak pulse current, with a 1500 W peak pulse power rating at 10/1000 µs."
      }
    ],
    "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 does not print pin numbers on the DO-201 package. The two terminals are identified onl; The description for the Anode pin uses the 1.5KE27A electrical values from the page 2 table (VBR 25.; The Cathode description cites VBR and VR values from the page 2 table. Those are device-level values"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0387,
        "at": "2026-10-15T07:17:47"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590891676775108608",
        "pages": 6,
        "sha256": "6109fc9061bdfd07",
        "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": "1-5ke27a-b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          16.54,
          5.22,
          8.21
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "74dfc3e30557da83985dc913a3e74e2db498d62d061b20b48cba0cdf7b37301b",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}