LT219-3

{
  "schema_version": 1,
  "type": "component",
  "slug": "lt219-3",
  "title": "LT219-3",
  "brief": "Letex Solid State Relays (MOS Output), SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "optoisolators",
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  "component": {
    "mpn": "LT219-3",
    "manufacturer": "Letex",
    "package": "SOP-4-2.54mm",
    "pin_count": 4,
    "category": "Optoisolators",
    "subcategory": "Solid State Relays (MOS Output)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903012777123840",
    "parts": {
      "symbol": "lt219-3.kicad_sym",
      "footprint": "lt219-3.kicad_mod",
      "model_3d": "lt219-3-hero.glb",
      "model_3d_plain": "lt219-3-etched.glb",
      "model_3d_step": "lt219-3-etched.step",
      "model_3d_step_plain": "lt219-3.step",
      "lbr": "lt219-3.lbr"
    },
    "distributor_links": {
      "lcsc": "C2691603"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T10:34:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LED Anode",
        "type": "input",
        "description": "Anode of the GaAlAs input infrared LED; the datasheet limits continuous LED current to 50 mA and LED reverse voltage to 5 V (absolute maximum ratings, page 2)."
      },
      {
        "number": "2",
        "name": "LED Cathode",
        "type": "input",
        "description": "Cathode of the GaAlAs input infrared LED; the same absolute maximum limits apply, with continuous LED current of 50 mA and LED reverse voltage of 5 V (page 2)."
      },
      {
        "number": "3",
        "name": "Drain (MOS FET)",
        "type": "passive",
        "description": "One drain of the output DMOS-FET switch; load voltage is rated 60 V (AC peak or DC) and load current 800 mA (absolute maximum ratings, page 2)."
      },
      {
        "number": "4",
        "name": "Drain (MOS FET)",
        "type": "passive",
        "description": "The other drain of the output DMOS-FET switch, forming the 1-Form A contact with pin 3; load voltage is rated 60 V (AC peak or DC) and load current 800 mA (page 2)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet calls the package a 4-pin SOP and gives body dimensions 4.4×4.3×2.0 mm, but the text d; The datasheet says a Tape & Reel version is available and includes taping specifications for surface; Pin types are not stated in the datasheet. They were assigned from KiCad ERC conventions: LED anode "
        ],
        "pages_sent": 4,
        "cost_usd": 0.0209,
        "at": "2026-10-16T10:34:14"
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      "datasheet": {
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        "pages": 4,
        "sha256": "6968bf4a29013dbd",
        "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": "lt219-3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.096,
          4.089,
          2.1
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f966be0315ede1d7c279b7361961651ad3bf041e8ee08b9486d3e8f3322ca8cf",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lt219-3-etched.step",
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        "sha256": "9c53339dc712a86adfec0e612499b69f7ccff16394d98fa80bd06ee526c510ed",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Letex",
      "Package": "SOP-4-2.54mm",
      "Category": "Optoisolators",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6968bf4a29013dbded1c97974ff5b0aa7717b2ca5eab2615521ad0d046a719b2",
      "rows": [
        {
          "name": "Continuous LED Current",
          "symbol": "IF",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak LED Current",
          "symbol": "IFP",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "f=100Hz, duty=1%",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "LED Reverse Voltage",
          "symbol": "VR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Power Dissipation",
          "symbol": "PIn",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Voltage",
          "symbol": "VL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "AC peak or DC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Current",
          "symbol": "IL",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Peak Load Current",
          "symbol": "IPeak",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "100ms (1 pulse)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Power Dissipation",
          "symbol": "Pout",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 380,
          "conditions": "",
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        {
          "name": "Total Power Dissipation",
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          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 450,
          "conditions": "",
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        },
        {
          "name": "I/O Breakdown Voltage",
          "symbol": "VI/O",
          "kind": "absolute_maximum",
          "unit": "Vrms",
          "min": null,
          "typ": null,
          "max": 1500,
          "conditions": "RH=60%, 1min",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Pin Soldering Temperature",
          "symbol": "Tsol",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 sec max.",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "On-Resistance",
          "symbol": "Ron",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.1,
          "max": 0.3,
          "conditions": "IF=5mA, IL=100mA, time to flow is within 1 sec.",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "LT219-3 (Letex) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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