π121M30

{
  "schema_version": 1,
  "type": "component",
  "slug": "121m30",
  "title": "π121M30",
  "brief": "2Pai Semi Digital Isolators, SOP-8. 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",
    "π121m30",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "π121M30",
    "manufacturer": "2Pai Semi",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207921221885952",
    "parts": {
      "symbol": "121m30.kicad_sym",
      "footprint": "121m30.kicad_mod",
      "model_3d": "121m30-hero.glb",
      "model_3d_plain": "121m30-etched.glb",
      "model_3d_step": "121m30-etched.step",
      "model_3d_step_plain": "121m30.step",
      "lbr": "121m30.lbr"
    },
    "distributor_links": {
      "lcsc": "C2928231"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:33:10Z",
      "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": "Primary-side isolator supply, which operates from 3.0 V to 5.5 V and should be bypassed to GND1 with a low-ESR ceramic capacitor of 0.1 µF to 10 µF placed as close to the device as possible."
      },
      {
        "number": "2",
        "name": "VIA",
        "type": "input",
        "description": "Channel A input on the primary side; logic high requires at least 0.7×VDD1 and logic low is at most 0.3×VDD1, with the absolute maximum input range of −0.5 V to VDD1 + 0.5 V."
      },
      {
        "number": "3",
        "name": "VOB",
        "type": "output",
        "description": "Channel B output on the secondary side, rated for IOH of −6 mA and IOL of 6 mA under recommended conditions, with absolute maximum output voltage of −0.5 V to VDD2 + 0.5 V; the π121M30 default output level is Low when the input side is unpowered."
      },
      {
        "number": "4",
        "name": "GND1",
        "type": "power_in",
        "description": "Primary-side ground reference for VDD1 and the channel A and B inputs."
      },
      {
        "number": "5",
        "name": "GND2",
        "type": "power_in",
        "description": "Secondary-side ground reference for VDD2 and the channel A and B outputs, rated for 3000 Vrms isolation for 1 minute with GND1."
      },
      {
        "number": "6",
        "name": "VIB",
        "type": "input",
        "description": "Channel B input on the primary side; logic high requires at least 0.7×VDD1 and logic low is at most 0.3×VDD1, with the absolute maximum input range of −0.5 V to VDD1 + 0.5 V."
      },
      {
        "number": "7",
        "name": "VOA",
        "type": "output",
        "description": "Channel A output on the secondary side, rated for IOH of −6 mA and IOL of 6 mA under recommended conditions, with absolute maximum output voltage of −0.5 V to VDD2 + 0.5 V."
      },
      {
        "number": "8",
        "name": "VDD2",
        "type": "power_in",
        "description": "Secondary-side isolator supply, which operates from 3.0 V to 5.5 V and should be bypassed to GND2 with a low-ESR ceramic capacitor of 0.1 µF to 10 µF."
      }
    ],
    "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: Pin assignments for π121M3x come from Table 2 (text). The corresponding pin diagram (Figure 4) is no; Pin descriptions are based on general sections: the supply range (3.0–5.5 V), logic thresholds, outp; Ordering table lists π121M30 as NB SOIC-8 with default output Low; this package is used for the outp"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0955,
        "at": "2026-10-18T13:30:54"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207921221885952",
        "pages": 18,
        "sha256": "1236ebd83e9a55d1",
        "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": "121m30.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "121m30-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b5c2cdc5b9a669b9d694885045e4e6a1ffd0d5614a77ec3c2bfbd10f5a4fcfa",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "2Pai Semi",
      "Package": "SOP-8",
      "Category": "Signal Isolation Devices",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1236ebd83e9a55d12c77a64c1854753498d6175319c16b38a865626de59fa1ce",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VDDx",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (absolute maximum)",
          "symbol": "VDD1-GND1, VDD2-GND2",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input signal voltage",
          "symbol": "VIA, VIB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VDDx + 0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "VOA, VOB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VDDx + 0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Primary per-channel average output current",
          "symbol": "IO1",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Secondary per-channel average output current",
          "symbol": "IO2",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Common-mode transient immunity",
          "symbol": "CMTI",
          "kind": "absolute_maximum",
          "unit": "kV/µs",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TST",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature range (absolute maximum)",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input signal low level",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as 0.3*VDDx1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -6,
          "conditions": "output high",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "output low",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Communication rate",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "Mbps",
          "min": 0,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "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": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum data rate",
          "symbol": "",
          "kind": "timing",
          "unit": "Mbps",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "within pulse width distortion (PWD) limit",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay tpHL, tpLH (5VDC supply)",
          "symbol": "tpHL, tpLH",
          "kind": "timing",
          "unit": "ns",
          "min": 5.5,
          "typ": 8,
          "max": 12.5,
          "conditions": "5VDC supply",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay tpHL, tpLH (3.3VDC supply)",
          "symbol": "tpHL, tpLH",
          "kind": "timing",
          "unit": "ns",
          "min": 6.5,
          "typ": 9,
          "max": 13.5,
          "conditions": "3.3VDC supply",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pulse width distortion (5VDC supply)",
          "symbol": "PWD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 0.3,
          "max": 3,
          "conditions": "5VDC supply; max difference between tpHL and tpLH",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pulse width distortion (3.3VDC supply)",
          "symbol": "PWD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 0.4,
          "max": 3,
          "conditions": "3.3VDC supply; max difference between tpHL and tpLH",
          "source_page": 4,
          "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 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 threshold (rising)",
          "symbol": "VDDxUV+",
          "kind": "electrical",
          "unit": "V",
          "min": 2.45,
          "typ": 2.75,
          "max": 2.95,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VDDx1 undervoltage threshold (falling)",
          "symbol": "VDDxUV-",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": 2.6,
          "max": 2.75,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD1 (5VDC, input low)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.42,
          "typ": 0.52,
          "max": 0.68,
          "conditions": "5VDC; π12xMx0 input low 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD2 (5VDC, x1 input high)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.42,
          "typ": 0.52,
          "max": 0.68,
          "conditions": "5VDC; π12xMx1 input high 5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD1 (5VDC, input high)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.44,
          "typ": 0.55,
          "max": 0.71,
          "conditions": "5VDC; π12xMx0 input high 5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD2 (5VDC, x1 input low)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.44,
          "typ": 0.55,
          "max": 0.71,
          "conditions": "5VDC; π12xMx1 input low 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD1 (3.3VDC, input low)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.41,
          "typ": 0.52,
          "max": 0.67,
          "conditions": "3.3VDC; π12xMx0 input low 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD2 (3.3VDC, x1 input high)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.41,
          "typ": 0.52,
          "max": 0.67,
          "conditions": "3.3VDC; π12xMx1 input high 3.3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD1 (3.3VDC, input high)",
          "symbol": "IDD1 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.41,
          "typ": 0.51,
          "max": 0.66,
          "conditions": "3.3VDC; π12xMx0 input high 3.3V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current IDD2 (3.3VDC, x1 input low)",
          "symbol": "IDD2 (Q)",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.41,
          "typ": 0.51,
          "max": 0.66,
          "conditions": "3.3VDC; π12xMx1 input low 0V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD1 at 150 Kbps (5VDC)",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.54,
          "max": 0.81,
          "conditions": "CL=0pF; 150 Kbps; 5VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD1 at 1 Mbps (5VDC)",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.58,
          "max": 0.86,
          "conditions": "CL=0pF; 1 Mbps; 5VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD1 at 10 Mbps (5VDC)",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.97,
          "max": 1.46,
          "conditions": "CL=0pF; 10 Mbps; 5VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD2 at 150 Kbps (5VDC)",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.54,
          "max": 0.81,
          "conditions": "CL=0pF; 150 Kbps; 5VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD2 at 1 Mbps (5VDC)",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.58,
          "max": 0.86,
          "conditions": "CL=0pF; 1 Mbps; 5VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD2 at 10 Mbps (5VDC)",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.97,
          "max": 1.46,
          "conditions": "CL=0pF; 10 Mbps; 5VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD1 at 150 Kbps (3.3VDC)",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.52,
          "max": 0.78,
          "conditions": "CL=0pF; 150 Kbps; 3.3VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD1 at 1 Mbps (3.3VDC)",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.54,
          "max": 0.81,
          "conditions": "CL=0pF; 1 Mbps; 3.3VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD1 at 10 Mbps (3.3VDC)",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.77,
          "max": 1.16,
          "conditions": "CL=0pF; 10 Mbps; 3.3VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD2 at 150 Kbps (3.3VDC)",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.52,
          "max": 0.78,
          "conditions": "CL=0pF; 150 Kbps; 3.3VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD2 at 1 Mbps (3.3VDC)",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.54,
          "max": 0.81,
          "conditions": "CL=0pF; 1 Mbps; 3.3VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Total supply current IDD2 at 10 Mbps (3.3VDC)",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.77,
          "max": 1.16,
          "conditions": "CL=0pF; 10 Mbps; 3.3VDC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Rated isolation voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "Vrms",
          "min": null,
          "typ": null,
          "max": 3000,
          "conditions": "1 minute; π12xM3x",
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