GBU404

{
  "slug": "gbu404",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bridge Rectifiers, GBU. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "gbu404",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gbu404.kicad_sym",
    "gbu404.kicad_mod",
    "gbu404.glb",
    "gbu404.step",
    "gbu404.lbr",
    "docs/hero.png",
    "docs/gbu404-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gbu404-hero.glb",
    "gbu404-hero.overlay.json",
    "gbu404-etched.glb"
  ],
  "component": {
    "mpn": "GBU404",
    "manufacturer": "Changjing",
    "package": "GBU",
    "pin_count": 4,
    "category": "Diodes",
    "subcategory": "Bridge Rectifiers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603157374790352896",
    "parts": {
      "symbol": "gbu404.kicad_sym",
      "footprint": "gbu404.kicad_mod",
      "model_3d": "gbu404-hero.glb",
      "model_3d_plain": "gbu404-etched.glb",
      "model_3d_step": "gbu404-etched.step",
      "model_3d_step_plain": "gbu404.step",
      "lbr": "gbu404.lbr"
    },
    "distributor_links": {
      "lcsc": "C5292670",
      "digikey": "GBU404DI-ND",
      "mouser": "621-GBU404"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T15:59:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "GBU404DI-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "621-GBU404",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "+",
        "type": "passive",
        "description": "Positive DC output of the bridge rectifier, the leftmost lead in the package drawing; average rectified output current is 4 A with heatsink at Tc=100°C (2.4 A without heatsink at Ta=100°C)."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "AC input terminal of the bridge; VRRM is 400 V for GBU404 and maximum RMS voltage is 280 V."
      },
      {
        "number": "3",
        "name": "3",
        "type": "passive",
        "description": "Second AC input terminal of the bridge; VRRM is 400 V for GBU404 and maximum RMS voltage is 280 V."
      },
      {
        "number": "4",
        "name": "-",
        "type": "passive",
        "description": "Negative DC output of the bridge rectifier, the rightmost lead in the package drawing; non-repetitive surge forward current IFSM is 150 A (60 Hz half sine, 1 cycle, Tj=25°C)."
      }
    ],
    "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 does not print pin numbers 1-4. They are assigned left to right in the page 3 package ; The datasheet gives no pin types. All four pins are marked passive because the bridge rectifier term",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.089,
        "at": "2026-10-15T15:59:14"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603157374790352896",
        "pages": 3,
        "sha256": "9d3e7e5a40e803ad",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "gbu404.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          22.1,
          3.4,
          36.4
        ],
        "zmin_mm": -16.0,
        "centre_offset_mm": 0.6,
        "footprint_binding": "identity",
        "sha256": "8031b8811f103efe801ea21c1e48def9cf6d14d909a4b82ba505562fec514beb",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gbu404-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          22.1,
          3.4,
          36.4
        ],
        "zmin_mm": -16.0,
        "centre_offset_mm": 0.6,
        "footprint_binding": "identity",
        "sha256": "c2a019dd32f730f50a1e7d599cad30ed94ed46f7ae43f3025b314b6c89e99a62",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}