main
Ray Set visibility: public 8c2b0b9 3d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "1-5smb36a",
  "title": "1.5SMB36A",
  "brief": "Littelfuse TVS, DO-214AA(SMBJ). 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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    "tvs-fuse-board level protection",
    "1.5smb36a",
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    "extractor-text"
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    "package": "DO-214AA(SMBJ)",
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    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "TVS",
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      "model_3d_step": "1-5smb36a-etched.step",
      "model_3d_step_plain": "1-5smb36a.step",
      "lbr": "1-5smb36a.lbr"
    },
    "distributor_links": {
      "lcsc": "C1850451"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T23:04:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 711 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal of the unidirectional 1.5SMB36A TVS, marked by the cathode band; VR 30.8V standoff, VBR 34.2-37.8V at 1mA, VC 49.9V at 30.5A (10/1000µs)."
      },
      {
        "number": "2",
        "name": "Anode",
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      }
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    "provenance": {
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      "factory_chain": {
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        "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: Datasheet does not print pin numbers 1/2; it only shows Cathode and Anode terminals (cathode band on"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0608,
        "at": "2026-10-22T23:04:05"
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        "pages": 6,
        "sha256": "edddb435792266f3",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.3,
          3.55,
          2.15
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "1-5smb36a-etched.step",
        "role": "eda",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "DO-214AA(SMBJ)",
      "Category": "TVS/Fuse/Board Level Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "• Matte tin lead–free Plated • Halogen free and RoHS",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "edddb435792266f3b75e08a5e73d5fbf2023c4fe8ed0f05c7ea36f734f5cd179"
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    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
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          "name": "Reverse Stand-off Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 30.8,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Breakdown Voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 34.2,
          "typ": null,
          "max": 37.8,
          "conditions": "@ IT = 1 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Clamping Voltage (10/1000μs)",
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          "max": 49.9,
          "conditions": "@ Ipp 30.5 A (10/1000μs)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Peak Pulse Current (10/1000μs)",
          "symbol": "Ipp",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 30.5,
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          "source_page": 2,
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        },
        {
          "name": "Maximum Clamping Voltage (8/20μs)",
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          "typ": null,
          "max": 64.5,
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        },
        {
          "name": "Maximum Peak Pulse Current (8/20μs)",
          "symbol": "Ipp",
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          "min": null,
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          "conditions": "8/20μs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Leakage",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "@ VR",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Temperature coefficient of VBR",
          "symbol": "αT",
          "kind": "temperature_coefficient",
          "unit": "%/C",
          "min": null,
          "typ": null,
          "max": 0.096,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak Pulse Power Dissipation",
          "symbol": "PPPM",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1500,
          "conditions": "10/1000μs waveform, TA=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation on Infinite Heat Sink",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "TL=50°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Forward Surge Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "8.3ms single half sine wave, unidirectional only",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Instantaneous Forward Voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "at 50A, unidirectional only",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
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          "kind": "recommended_operating",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 175,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical Thermal Resistance Junction to Lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical Thermal Resistance Junction to Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "VBR Temperature Coefficient (typical)",
          "symbol": "αT",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VBR @ TJ = VBR@25°C x (1+αT x (TJ - 25))",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "VBR Voltage Tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "A suffix: 5% VBR voltage tolerance",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "1.5SMB36A (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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}