KBU804

{
  "slug": "kbu804",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bridge Rectifiers, KBU. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "kbu804",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "kbu804.kicad_sym",
    "kbu804.kicad_mod",
    "kbu804.glb",
    "kbu804.step",
    "kbu804.lbr",
    "docs/hero.png",
    "docs/kbu804-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "KBU804",
    "manufacturer": "Changjing",
    "package": "KBU",
    "pin_count": 4,
    "category": "Diodes",
    "subcategory": "Bridge Rectifiers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9dd9270f476a108581a76998ce95ac68.pdf",
    "parts": {
      "symbol": "kbu804.kicad_sym",
      "footprint": "kbu804.kicad_mod",
      "model_3d": "kbu804-etched.glb",
      "model_3d_plain": "kbu804.glb",
      "model_3d_step": "kbu804-etched.step",
      "model_3d_step_plain": "kbu804.step",
      "lbr": "kbu804.lbr"
    },
    "distributor_links": {
      "lcsc": "C5292698"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T09:58:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "+",
        "type": "output",
        "description": "Positive DC output of the bridge rectifier; average rectified output current up to 8A (60Hz sine, R-load, Tc=100°C)."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "AC input; VRRM 400V for KBU804, surge forward current IFSM 200A (60Hz sine, 1 cycle, Tj=25°C)."
      },
      {
        "number": "3",
        "name": "3",
        "type": "passive",
        "description": "Second AC input; VRRM 400V for KBU804, peak forward voltage 1.0V max per diode at IFM=4.0A."
      },
      {
        "number": "4",
        "name": "-",
        "type": "output",
        "description": "Negative DC output of the bridge rectifier (return); peak reverse current 10µA max per diode at VRM=VRRM."
      }
    ],
    "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 never prints pin numbers. The schematic on page 1 shows the terminals left to right as; The KBU is a 4-lead through-hole package, but the datasheet gives no lead numbering in the outline d",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.1005,
        "at": "2026-10-22T09:57:27"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9dd9270f476a108581a76998ce95ac68.pdf",
        "pages": 3,
        "sha256": "7786994fb3f31bbd",
        "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": "kbu804.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          23.2,
          7.1,
          33.35
        ],
        "zmin_mm": -14.0,
        "centre_offset_mm": 1.65,
        "footprint_binding": "identity",
        "sha256": "fa15a7b4dea57c6438700128584b6c301e81f51249ab4da2276368695aeb3c9c",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "kbu804-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": [
          23.2,
          7.1,
          33.35
        ],
        "zmin_mm": -14.0,
        "centre_offset_mm": 1.65,
        "footprint_binding": "identity",
        "sha256": "e9ad8b18282f16c3b9549dd40bb1b0cf623d92c6afe4f1158e186d3179c8adf8",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}