KBL408

{
  "schema_version": 1,
  "type": "component",
  "slug": "kbl408",
  "title": "KBL408",
  "brief": "Yangzhou Yangjie Elec Tech Bridge Rectifiers, KBL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "diodes",
    "kbl408",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "KBL408",
    "manufacturer": "Yangzhou Yangjie Elec Tech",
    "package": "KBL",
    "pin_count": 4,
    "category": "Diodes",
    "subcategory": "Bridge Rectifiers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590166204368388096",
    "parts": {
      "symbol": "kbl408.kicad_sym",
      "footprint": "kbl408.kicad_mod",
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      "model_3d_plain": "kbl408.glb",
      "model_3d_step": "kbl408-etched.step",
      "model_3d_step_plain": "kbl408.step",
      "lbr": "kbl408.lbr"
    },
    "distributor_links": {
      "lcsc": "C49005976",
      "digikey": "2439-KBL408-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T01:48:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2439-KBL408-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "+",
        "type": "power_out",
        "description": "Positive DC output of the bridge rectifier, shown as the first lead (+) in the schematic and marked on the body; average rectified output current is 4 A at Ta=40°C."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "AC input terminal; VRRM is 800 V for KBL408 and forward voltage is 1.05 V per diode at IFM=2A."
      },
      {
        "number": "3",
        "name": "3",
        "type": "passive",
        "description": "Second AC input terminal; peak non-repetitive surge forward current is 120 A (60 Hz half-sine, 1 cycle, Ta=25°C)."
      },
      {
        "number": "4",
        "name": "-",
        "type": "power_in",
        "description": "Negative DC output (return) of the bridge rectifier, shown as the last lead (-) in the schematic and marked on the body."
      }
    ],
    "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 numbers on the leads. I numbered them 1 to 4 from left to right in the ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0978,
        "at": "2026-10-16T01:48:00"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590166204368388096",
        "pages": 4,
        "sha256": "cc26328f4329bcc0",
        "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": "kbl408.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          19.5,
          6.5,
          29.05
        ],
        "zmin_mm": -14,
        "centre_offset_mm": 0.95,
        "footprint_binding": "identity",
        "sha256": "91f63058c59299ffaf82533f5eb26d1d825185c689c0877b710f01e11fa70b81",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "kbl408-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": [
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        "zmin_mm": -14,
        "centre_offset_mm": 0.95,
        "footprint_binding": "identity",
        "sha256": "64e97de0807e8ac2a933c8486e823062878e946742f0172d659e9a2d386c0682",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Yangzhou Yangjie Elec Tech",
      "Package": "KBL",
      "Category": "Diodes",
      "Pins": "4"
    },
    "appearance": {
      "contacts": {
        "quote": "● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "cc26328f4329bcc0a6b5e2026f378e08b870d3a621a5c012daecc3bfe12efce7"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "cc26328f4329bcc0a6b5e2026f378e08b870d3a621a5c012daecc3bfe12efce7",
      "rows": [
        {
          "name": "Repetitive Peak Reverse Voltage",
          "symbol": "VRRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Average Rectified Output Current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "@60Hz sine wave, R-load, without heatsink, Ta=40℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Surge (Non-repetitive) Forward Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "@60Hz half-sine wave, 1 cycle, Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Current Squared Time (rating per diode)",
          "symbol": "I²t",
          "kind": "absolute_maximum",
          "unit": "A2S",
          "min": null,
          "typ": null,
          "max": 59.8,
          "conditions": "@1ms≤t<8.3ms, Tj=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum instantaneous forward voltage drop per diode",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.05,
          "conditions": "IFM=2A",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC reverse current at rated DC blocking voltage per diode",
          "symbol": "IRRM",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VRM=VRRM",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to ambient",
          "symbol": "RθJ-A",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 21,
          "max": null,
          "conditions": "Mounted on 3.0*3.0*0.11in (7.5*7.5*0.3cm) aluminum plate (note 1)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to lead",
          "symbol": "RθJ-L",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 2.4,
          "max": null,
          "conditions": "Mounted on P.C.B. at 0.375in (9.5mm) lead length and 0.5*0.5in (12*12mm) copper pads (note 2)",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "kbl408"
  ],
  "discovery_pitch": "KBL408 (Yangzhou Yangjie Elec Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "kbl408.kicad_mod",
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    "kbl408.step",
    "kbl408.lbr",
    "docs/hero.png",
    "docs/kbl408-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  }
}