π142M31

{
  "slug": "142m31",
  "version": "0.1.0",
  "type": "component",
  "description": "2Pai Semi Digital Isolators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "signal isolation devices",
    "π142m31",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "142m31.kicad_sym",
    "142m31.kicad_mod",
    "142m31.glb",
    "142m31.step",
    "142m31.lbr",
    "docs/hero.png",
    "docs/142m31-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "142m31-hero.glb",
    "142m31-hero.overlay.json",
    "142m31-etched.glb"
  ],
  "component": {
    "mpn": "π142M31",
    "manufacturer": "2Pai Semi",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885176819077120",
    "parts": {
      "symbol": "142m31.kicad_sym",
      "footprint": "142m31.kicad_mod",
      "model_3d": "142m31-hero.glb",
      "model_3d_plain": "142m31-etched.glb",
      "model_3d_step": "142m31-etched.step",
      "model_3d_step_plain": "142m31.step",
      "lbr": "142m31.lbr"
    },
    "distributor_links": {
      "lcsc": "C471606"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T18:23:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD1",
        "type": "power_in",
        "description": "Supply voltage for isolator side 1, specified for 3.0 V to 5.5 V operation."
      },
      {
        "number": "2",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground 1, the ground reference for isolator side 1."
      },
      {
        "number": "3",
        "name": "VIA",
        "type": "input",
        "description": "Logic input A on side 1, transmitted across the isolation barrier to output VOA; it must be held low while VDD1 is unpowered to avoid back-powering VDD1 through its ESD protection."
      },
      {
        "number": "4",
        "name": "VIB",
        "type": "input",
        "description": "Logic input B on side 1, transmitted across the isolation barrier to output VOB; it must be held low while VDD1 is unpowered to avoid back-powering VDD1 through its ESD protection."
      },
      {
        "number": "5",
        "name": "VOC",
        "type": "output",
        "description": "Logic output C on side 1, a reverse-direction channel that follows input VIC (pin 12) from side 2."
      },
      {
        "number": "6",
        "name": "VOD",
        "type": "output",
        "description": "Logic output D on side 1, a reverse-direction channel that follows input VID (pin 11) from side 2."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect for π142M3x; this pin is EN1 (output enable, active when high or open) only on the π142M6x variant."
      },
      {
        "number": "8",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground 1, the ground reference for isolator side 1."
      },
      {
        "number": "9",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground 2, the ground reference for isolator side 2."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect for π142M3x; this pin is EN2 (output enable, active when high or open) only on the π142M6x variant."
      },
      {
        "number": "11",
        "name": "VID",
        "type": "input",
        "description": "Logic input D on side 2, a reverse-direction channel that drives output VOD (pin 6)."
      },
      {
        "number": "12",
        "name": "VIC",
        "type": "input",
        "description": "Logic input C on side 2, a reverse-direction channel that drives output VOC (pin 5)."
      },
      {
        "number": "13",
        "name": "VOB",
        "type": "output",
        "description": "Logic output B on side 2, follows input VIB (pin 4) across the isolation barrier."
      },
      {
        "number": "14",
        "name": "VOA",
        "type": "output",
        "description": "Logic output A on side 2, follows input VIA (pin 3) across the isolation barrier."
      },
      {
        "number": "15",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground 2, the ground reference for isolator side 2."
      },
      {
        "number": "16",
        "name": "VDD2",
        "type": "power_in",
        "description": "Supply voltage for isolator side 2, specified for 3.0 V to 5.5 V operation."
      }
    ],
    "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: Table 2 lists the supply voltage minimum as '1' with a footnote, which is garbled in the extracted t; Pins 7 and 10 are NC on the π142M3x (3 kV SOIC_N) variant that π142M31 is. Their EN1/EN2 function ap; Pin-level types for VOC/VOD (pins 5, 6) and VIC/VID (pins 11, 12) are reverse-direction channels. Th"
        ],
        "pages_sent": 17,
        "cost_usd": 0.1024,
        "at": "2026-10-18T18:21:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885176819077120",
        "pages": 17,
        "sha256": "705f6f25144df2ab",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "142m31.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "142m31-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b60a83cba4f267bf2054483faa01a72556b4126e56b625a07a954f429b7dd8f7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}