main
Ray Set visibility: public c41ed87 8h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "at814a-cuh-d",
  "title": "AT814A-CuH-D",
  "brief": "AOTE Transistor, Photovoltaic Output Optoisolators, DIP-4. 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",
    "optoisolators",
    "at814a-cuh-d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AT814A-CuH-D",
    "manufacturer": "AOTE",
    "package": "DIP-4",
    "pin_count": 4,
    "category": "Optoisolators",
    "subcategory": "Transistor, Photovoltaic Output Optoisolators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fde4b851c2ab7148733fae6fe3d9b9be.pdf",
    "parts": {
      "symbol": "at814a-cuh-d.kicad_sym",
      "footprint": "at814a-cuh-d.kicad_mod",
      "model_3d": "at814a-cuh-d-hero.glb",
      "model_3d_plain": "at814a-cuh-d-etched.glb",
      "model_3d_step": "at814a-cuh-d-etched.step",
      "model_3d_step_plain": "at814a-cuh-d.step",
      "lbr": "at814a-cuh-d.lbr"
    },
    "distributor_links": {
      "lcsc": "C20612638"
    },
    "distributor_check": {
      "checked_at": "2026-11-04T18:35:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Anode/Cathode",
        "type": "input",
        "description": "Anti-parallel LED input terminal shared with pin 2 (polarity-interchangeable), with forward current rated IF ±50 mA absolute max and ±5 to ±15 mA recommended."
      },
      {
        "number": "2",
        "name": "Cathode/Anode",
        "type": "input",
        "description": "Anti-parallel LED input terminal shared with pin 1 (polarity-interchangeable), with forward current rated IF ±50 mA absolute max and ±5 to ±15 mA recommended."
      },
      {
        "number": "3",
        "name": "Emitter",
        "type": "passive",
        "description": "Phototransistor emitter, with emitter-collector voltage VECO rated 7 V max."
      },
      {
        "number": "4",
        "name": "Collector",
        "type": "passive",
        "description": "Phototransistor collector, with VCEO rated 80 V max and collector current IC rated 50 mA max."
      }
    ],
    "provenance": {
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        "primary_model": "claude-sonnet-5-5",
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        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Order code letter D (DIP) maps to the DIP4 package; the pin numbering comes from the schematic on th; Pins 1 and 2 are given as 'Anode/Cathode' and 'Cathode/Anode' because the input is an AC (anti-paral",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.2341,
        "at": "2026-11-04T18:34:53"
      },
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        "pages": 12,
        "sha256": "58c8638d5528b036",
        "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": [
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        "file": "at814a-cuh-d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          4.93,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "39490b2c17b5f36ae3fdd5fdd2952f6879a060ff6cbc6d0241e3d6262fd0f215",
        "checked": "2026-11-04",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at814a-cuh-d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8cc5678ae172410c0b1d7d22b5665ef6bf84a398aa7152712ba0f2b9534fcca5",
        "checked": "2026-11-04",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "AOTE",
      "Package": "DIP-4",
      "Category": "Optoisolators",
      "Pins": "4"
    },
    "appearance": {
      "contacts": {
        "quote": "④ 框架类型 Lead Frame ( Cu: 铜框架 Copper,Fe: 铁框架 Ferrum)",
        "page": 8,
        "doc": "ds.pdf",
        "material": "Copper"
      },
      "version": 1,
      "datasheet_sha256": "58c8638d5528b0367342397762abe6af33dcd3bc13f226cfabf9cf36560002ed"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "58c8638d5528b0367342397762abe6af33dcd3bc13f226cfabf9cf36560002ed",
      "rows": [
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          "name": "Forward Current",
          "symbol": "IF",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation (input)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation Derating Factor",
          "symbol": "PDD",
          "kind": "absolute_maximum",
          "unit": "mW/°C",
          "min": null,
          "typ": null,
          "max": 2.9,
          "conditions": "Derating above Ta = 90°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-Ambient",
          "symbol": "RthJ-A",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 325,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-Case",
          "symbol": "RthJ-C",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
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          "max": 200,
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        },
        {
          "name": "Collector Power Dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
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        {
          "name": "Collector Current",
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          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
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        },
        {
          "name": "Collector-Emitter Voltage",
          "symbol": "VCEO",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 80,
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        },
        {
          "name": "Emitter-Collector Voltage",
          "symbol": "VECO",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Isolation Voltage",
          "symbol": "Viso",
          "kind": "absolute_maximum",
          "unit": "Vrms",
          "min": null,
          "typ": null,
          "max": 5000,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 110,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering Temperature",
          "symbol": "Tsol",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Forward Current (recommended)",
          "symbol": "IF",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": 5,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage (recommended)",
          "symbol": "VCEO",
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          "unit": "V",
          "min": 5,
          "typ": null,
          "max": 80,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector Current (recommended)",
          "symbol": "IC",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": 5,
          "typ": null,
          "max": 35,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Forward Voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": 1.4,
          "conditions": "IF=±20mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Terminal Capacitance",
          "symbol": "Ct",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 30,
          "max": 250,
          "conditions": "V=0V, F=1KHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Collector Dark Current",
          "symbol": "ICEO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VCE=20V, IF=0mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Breakdown Voltage",
          "symbol": "BVCEO",
          "kind": "electrical",
          "unit": "V",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "IC=0.1mA, IF=0mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Collector Voltage",
          "symbol": "BVECO",
          "kind": "electrical",
          "unit": "V",
          "min": 7,
          "typ": null,
          "max": null,
          "conditions": "IE=10uA, IF=0mA",
          "source_page": 4,
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        },
        {
          "name": "Current Transfer Ratio (class A)",
          "symbol": "CTR",
          "kind": "electrical",
          "unit": "%",
          "min": 50,
          "typ": null,
          "max": 150,
          "conditions": "IF=1mA, VCE=5V, Ta=25℃; code A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 0.2,
          "conditions": "IF=±20mA, IC=1mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Isolation Capacitance",
          "symbol": "CISO",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 0.6,
          "max": 1,
          "conditions": "V=0, f=1MHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Rise Time",
          "symbol": "Tr",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "VCE=2V, IC=2mA, RL=100Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Fall Time",
          "symbol": "Tf",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "VCE=2V, IC=2mA, RL=100Ω",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "AT814A-CuH-D (AOTE) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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