π142M31

{
  "schema_version": 1,
  "type": "component",
  "slug": "142m31",
  "title": "π142M31",
  "brief": "2Pai Semi Digital Isolators, SOIC-16. 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",
    "signal isolation devices",
    "π142m31",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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",
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      "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": [
      {
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 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",
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        "extents_mm": [
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        "centre_offset_mm": 0,
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        "sha256": "b60a83cba4f267bf2054483faa01a72556b4126e56b625a07a954f429b7dd8f7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "2Pai Semi",
      "Package": "SOIC-16",
      "Category": "Signal Isolation Devices",
      "Pins": "16"
    },
    "appearance": {
      "housing": {
        "quote": "In accordance with DIN V VDE V 0884-10, each π140M3x/π141M3x/π142M3x is proof tested by applying an insulation test voltage ≥ 1326 V peak for 1 sec (partial discharge detection limit = 5 pC); each π14",
        "page": 8,
        "doc": "ds.pdf",
        "material": "pC"
      },
      "version": 1,
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    "characteristics": {
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      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VDDx",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Low Level Input Signal Voltage",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "High Level Output Current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -6,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low Level Output Current",
          "symbol": "IOL",
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          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "Maximum Data Rate",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "Mbps",
          "min": 0,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Ambient Operating Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltages (VDD1-GND1, VDD2-GND2)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Input Voltages (VIA, VIB)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Upper limit is VDDx + 0.5 V as printed",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Voltages (VOA, VOB)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Upper limit is VDDx + 0.5 V as printed",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Average Output Current per Pin, Side 1",
          "symbol": "IO1",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Average Output Current per Pin, Side 2",
          "symbol": "IO2",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Common-Mode Transients Immunity",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV/µs",
          "min": -150,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TST",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Minimum Pulse Width",
          "symbol": "PW",
          "kind": "timing",
          "unit": "ns",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "Within pulse width distortion (PWD) limit",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Data Rate",
          "symbol": "",
          "kind": "timing",
          "unit": "Mbps",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Within PWD limit",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay Time (tpHL, tpLH)",
          "symbol": "tpHL, tpLH",
          "kind": "timing",
          "unit": "ns",
          "min": 5.5,
          "typ": 8,
          "max": 12.5,
          "conditions": "50% input to 50% output signal, @ 5VDC supply",
          "source_page": 5,
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        },
        {
          "name": "Propagation Delay Time (tpHL, tpLH)",
          "symbol": "tpHL, tpLH",
          "kind": "timing",
          "unit": "ns",
          "min": 6.5,
          "typ": 9,
          "max": 13.5,
          "conditions": "50% input to 50% output signal, @ 3.3VDC supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Pulse Width Distortion",
          "symbol": "PWD",
          "kind": "timing",
          "unit": "ns",
          "min": 0,
          "typ": 0.3,
          "max": 0.8,
          "conditions": "|tpHL - tpLH|, @ 5VDC supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Part to Part Propagation Delay Skew",
          "symbol": "tPSK",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Between any two devices, @ 5VDC supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Channel to Channel Propagation Delay Skew",
          "symbol": "tCSK",
          "kind": "timing",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 1,
          "conditions": "Between output channels in one device, @ 5VDC supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Channel to Channel Propagation Delay Skew",
          "symbol": "tCSK",
          "kind": "timing",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 0.8,
          "conditions": "Between output channels in one device, @ 3.3VDC supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD Human Body Model",
          "symbol": "ESD",
          "kind": "electrical",
          "unit": "kV",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "HBM, all pins",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.1,
          "conditions": "20 µA output current",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.1,
          "typ": null,
          "max": 0.2,
          "conditions": "2 mA output current",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Current per Signal Channel",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": 0.5,
          "max": 10,
          "conditions": "0 V ≤ Signal voltage ≤ VDDX1",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VDDx1 Undervoltage Rising Threshold",
          "symbol": "VDDxUV+",
          "kind": "electrical",
          "unit": "V",
          "min": 2.45,
          "typ": 2.65,
          "max": 2.9,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VDDx1 Undervoltage Falling Threshold",
          "symbol": "VDDxUV−",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": 2.5,
          "max": 2.75,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current IDD1 (Q)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 838,
          "typ": 1048,
          "max": 1362,
          "conditions": "@ 5VDC supply, 0V input signal",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current IDD2 (Q)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 838,
          "typ": 1048,
          "max": 1362,
          "conditions": "@ 5VDC supply, 0V input signal",
          "source_page": 6,
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        },
        {
          "name": "Quiescent Supply Current IDD1 (Q)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 872,
          "typ": 1090,
          "max": 1417,
          "conditions": "@ 5VDC supply, 5V input signal",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Quiescent Supply Current IDD2 (Q)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 872,
          "typ": 1090,
          "max": 1417,
          "conditions": "@ 5VDC supply, 5V input signal",
          "source_page": 6,
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        {
          "name": "Quiescent Supply Current IDD1 (Q)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 829,
          "typ": 1036,
          "max": 1347,
          "conditions": "@ 3.3VDC supply, 0V input signal",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current IDD2 (Q)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 829,
          "typ": 1036,
          "max": 1347,
          "conditions": "@ 3.3VDC supply, 0V input signal",
          "source_page": 6,
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        {
          "name": "Quiescent Supply Current IDD1 (Q)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 816,
          "typ": 1020,
          "max": 1326,
          "conditions": "@ 3.3VDC supply, 3.3V input signal",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Supply Current IDD2 (Q)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "µA",
          "min": 816,
          "typ": 1020,
          "max": 1326,
          "conditions": "@ 3.3VDC supply, 3.3V input signal",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Current vs Throughput, 150 kbps",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.08,
          "max": 1.62,
          "conditions": "CL = 0 pF, @ 5VDC supply",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply Current vs Throughput, 1 Mbps",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.16,
          "max": 1.74,
          "conditions": "CL = 0 pF, @ 5VDC supply",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Supply Current vs Throughput, 10 Mbps",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.94,
          "max": 2.91,
          "conditions": "CL = 0 pF, @ 5VDC supply",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Supply Current vs Throughput, 150 kbps",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.04,
          "max": 1.56,
          "conditions": "CL = 0 pF, @ 3.3VDC supply",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Supply Current vs Throughput, 1 Mbps",
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          "conditions": "CL = 0 pF, @ 3.3VDC supply",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Supply Current vs Throughput, 10 Mbps",
          "symbol": "IDD1",
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          "unit": "mA",
          "min": null,
          "typ": 1.54,
          "max": 2.31,
          "conditions": "CL = 0 pF, @ 3.3VDC supply",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Dynamic Input Supply Current per Channel",
          "symbol": "IDDI (D)",
          "kind": "electrical",
          "unit": "µA/Mbps",
          "min": null,
          "typ": 9,
          "max": null,
          "conditions": "Inputs switching, 50% duty cycle square wave, CL = 0 pF, @ 5VDC supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dynamic Output Supply Current per Channel",
          "symbol": "IDDO (D)",
          "kind": "electrical",
          "unit": "µA/Mbps",
          "min": null,
          "typ": 38,
          "max": null,
          "conditions": "Inputs switching, 50% duty cycle square wave, CL = 0 pF, @ 5VDC supply",
          "source_page": 5,
          "source": "datasheet"
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