BL817C

{
  "schema_version": 1,
  "type": "component",
  "slug": "bl817c",
  "title": "BL817C",
  "brief": "GME(银河微电) Transistor, Photovoltaic Output Optoisolators, DIP-4L. 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",
    "bl817c",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BL817C",
    "manufacturer": "GME(银河微电)",
    "package": "DIP-4L",
    "pin_count": 4,
    "category": "Optoisolators",
    "subcategory": "Transistor, Photovoltaic Output Optoisolators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604432056222818304",
    "parts": {
      "symbol": "bl817c.kicad_sym",
      "footprint": "bl817c.kicad_mod",
      "model_3d": "bl817c-hero.glb",
      "model_3d_plain": "bl817c-etched.glb",
      "model_3d_step": "bl817c-etched.step",
      "model_3d_step_plain": "bl817c.step",
      "lbr": "bl817c.lbr"
    },
    "distributor_links": {
      "lcsc": "C41416203"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T09:02:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Anode",
        "type": "input",
        "description": "LED anode of the input side; forward current IF max 50 mA, peak forward current 1 A, reverse voltage max 6 V."
      },
      {
        "number": "2",
        "name": "Cathode",
        "type": "input",
        "description": "LED cathode of the input side; return for the forward current (IF max 50 mA, VF typ 1.2 V at IF = 20 mA)."
      },
      {
        "number": "3",
        "name": "Emitter",
        "type": "passive",
        "description": "Phototransistor emitter; emitter-collector voltage max 7 V, isolated from the input by 5000 Vrms."
      },
      {
        "number": "4",
        "name": "Collector",
        "type": "passive",
        "description": "Phototransistor collector; VCEO max 80 V, collector current max 50 mA, collector power dissipation 150 mW."
      }
    ],
    "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: BL817C is not listed in the ordering table (only BL817A/MA/SA are shown); the 'C' is the CTR bank (2",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 10,
        "cost_usd": 0.1366,
        "at": "2026-10-17T09:01:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604432056222818304",
        "pages": 10,
        "sha256": "1c1769193ac0a53d",
        "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": "bl817c.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": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl817c-etched.step",
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        "sha256": "085f16cd97dc843ff4dc90c985073f2c664aa14acf10a1ff139e65251c7c202b",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GME(银河微电)",
      "Package": "DIP-4L",
      "Category": "Optoisolators",
      "Pins": "4"
    },
    "appearance": {
      "contacts": {
        "quote": " Terminals: Matte tin-plated leads; solderability-per MIL-STD-202, Method 208",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "1c1769193ac0a53d5c81dd220f456bf041687e08e9948e0d2194f37225b8e2b2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1c1769193ac0a53d5c81dd220f456bf041687e08e9948e0d2194f37225b8e2b2",
      "rows": [
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          "name": "Forward Voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": 1.4,
          "conditions": "IF = 20mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak Forward Voltage",
          "symbol": "VFM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "IFM = 0.5A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reverse Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VR = 4V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Capacitance",
          "symbol": "Cin",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 30,
          "max": 250,
          "conditions": "VR = 0V, f = 1kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Dark Current",
          "symbol": "ICEO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VCE = 20V, IF = 0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Breakdown Voltage",
          "symbol": "BVCEO",
          "kind": "electrical",
          "unit": "V",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "IC = 0.1mA, IF = 0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Collector Breakdown Voltage",
          "symbol": "BVECO",
          "kind": "electrical",
          "unit": "V",
          "min": 7,
          "typ": null,
          "max": null,
          "conditions": "IE = 10μA, IF = 0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector Current",
          "symbol": "IC",
          "kind": "electrical",
          "unit": "mA",
          "min": 2.5,
          "typ": null,
          "max": 30,
          "conditions": "IF = 5mA, VCE = 5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current Transfer Ratio (Rank C)",
          "symbol": "CTR",
          "kind": "electrical",
          "unit": "%",
          "min": 200,
          "typ": null,
          "max": 400,
          "conditions": "IF = 5 mA, VCE = 5V",
          "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": 3,
          "source": "datasheet"
        },
        {
          "name": "Isolation Current",
          "symbol": "Risc",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "DC6000V, 40~60% R.H.",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Floating Capacitance",
          "symbol": "CIO",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 0.6,
          "max": 1,
          "conditions": "VIO = 0, f = 1MHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Cut-off Frequency",
          "symbol": "fC",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "VCE = 5V, IC = 2mA, RL = 100Ω, -3dB",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Turn On Time",
          "symbol": "Ton",
          "kind": "electrical",
          "unit": "μs",
          "min": null,
          "typ": 4,
          "max": 18,
          "conditions": "VCE = 2V, RL = 100Ω, IC = 2mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Turn Off Time",
          "symbol": "Toff",
          "kind": "electrical",
          "unit": "μs",
          "min": null,
          "typ": 3,
          "max": 18,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Forward Current",
          "symbol": "IF",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak Forward Current",
          "symbol": "IFM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Pulse width≤1μs, Duty ratio: 0.001",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Voltage",
          "symbol": "VR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Power Dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Collector Voltage",
          "symbol": "VECO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Total Power Dissipation",
          "symbol": "PTOT",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Isolation Voltage",
          "symbol": "VISO",
          "kind": "absolute_maximum",
          "unit": "Vrms",
          "min": null,
          "typ": null,
          "max": 5000,
          "conditions": "40 to 60% RH, AC for 1 minute",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rated Impulse Isolation Voltage",
          "symbol": "VIOTM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6000,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rated Repetitive Peak Isolation Voltage",
          "symbol": "VIORM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 630,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 110,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering Temperature",
          "symbol": "TSOL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "For 10 seconds",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Air",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 430,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 350,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 368,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
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    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "bl817c"
  ],
  "discovery_pitch": "BL817C (GME(银河微电)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
    "public": true
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}