π122M31

{
  "slug": "122m31",
  "version": "0.1.0",
  "type": "component",
  "description": "2Pai Semi Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "π122m31",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "122m31.kicad_sym",
    "122m31.kicad_mod",
    "122m31.glb",
    "122m31.step",
    "122m31.lbr",
    "docs/hero.png",
    "docs/122m31-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "122m31-hero.glb",
    "122m31-hero.overlay.json",
    "122m31-etched.glb"
  ],
  "component": {
    "mpn": "π122M31",
    "manufacturer": "2Pai Semi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface ICs",
    "subcategory": "Digital Isolators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d03ad34fb22b0d479f79fd3589f7be1d.pdf",
    "parts": {
      "symbol": "122m31.kicad_sym",
      "footprint": "122m31.kicad_mod",
      "model_3d": "122m31-hero.glb",
      "model_3d_plain": "122m31-etched.glb",
      "model_3d_step": "122m31-etched.step",
      "model_3d_step_plain": "122m31.step",
      "lbr": "122m31.lbr"
    },
    "distributor_links": {
      "lcsc": "C471594"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T03:55:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "error"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD1",
        "type": "power_in",
        "description": "Supply voltage for isolator side 1, operating range 3.0 V to 5.5 V (absolute max 7.0 V), bypass with 0.1 µF to 10 µF to GND1."
      },
      {
        "number": "2",
        "name": "VOA",
        "type": "output",
        "description": "Logic output A on side 1 (fail-safe default high), rated for ±6 mA output current."
      },
      {
        "number": "3",
        "name": "VIB",
        "type": "input",
        "description": "Logic input B on side 1, high threshold 0.7*VDD1 and low threshold 0.3*VDD1 with data rate up to 10 Mbps."
      },
      {
        "number": "4",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground 1, the ground reference for isolator side 1."
      },
      {
        "number": "5",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground 2, the ground reference for isolator side 2."
      },
      {
        "number": "6",
        "name": "VOB",
        "type": "output",
        "description": "Logic output B on side 2 (fail-safe default high), rated for ±6 mA output current."
      },
      {
        "number": "7",
        "name": "VIA",
        "type": "input",
        "description": "Logic input A on side 2, high threshold 0.7*VDD2 and low threshold 0.3*VDD2 with data rate up to 10 Mbps."
      },
      {
        "number": "8",
        "name": "VDD2",
        "type": "power_in",
        "description": "Supply voltage for isolator side 2, operating range 3.0 V to 5.5 V (absolute max 7.0 V), bypass with 0.1 µF to 10 µF to GND2."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The π122M3x pin table lists VOA on pin 2 and VIB on pin 3 (both on the VDD1 side, pins 1-4), and VOB; The π122M31 suffix 1 means fail-safe output high per the ordering guide. The pin descriptions in the"
        ],
        "pages_sent": 15,
        "cost_usd": 0.157,
        "at": "2026-10-22T03:53:37"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d03ad34fb22b0d479f79fd3589f7be1d.pdf",
        "pages": 15,
        "sha256": "9265fc083917f396",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "122m31.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "122m31-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "8d16e6159f62c8f8d10a59fcf3506293a173ef0a66b60052ed47b409179d7b3f",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}