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Ray Set visibility: public 0dd34f1 12d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "sz1-5smc15at3g",
  "title": "SZ1.5SMC15AT3G",
  "brief": "Littelfuse TVS, SMC. 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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    "sz1.5smc15at3g",
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  "component": {
    "mpn": "SZ1.5SMC15AT3G",
    "manufacturer": "Littelfuse",
    "package": "SMC",
    "pin_count": 2,
    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ced8697f724e49c2d9edb36841d1093a.pdf",
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      "lbr": "sz1-5smc15at3g.lbr"
    },
    "distributor_links": {
      "lcsc": "C2649867",
      "digikey": "F11486TR-ND",
      "mouser": "863-SZ1.5SMC15AT3G"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T16:48:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "F11486TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-SZ1.5SMC15AT3G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal of the unidirectional TVS, marked by the color band on the package and shown as pin 1 (Cathode) in the part marking diagram; for SZ1.5SMC15AT3G the working peak reverse voltage VRWM is 12.8 V with maximum reverse leakage of 5 µA at VRWM."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the unidirectional TVS, shown as pin 2 (Anode) in the part marking diagram; the series is rated for 1500 W peak pulse power at 1 ms (10 x 1000 µs, non-repetitive) and the device is clamped at 21.2 V at a peak pulse current of 71 A for the 15 V part."
      }
    ],
    "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: The datasheet gives no separate pin diagram; pin numbers and Cathode/Anode assignment come from the ; Polarity is taken from the part number suffix 'A' (A = Uni Directional TVS) on page 5 and the color-; The datasheet lists only the package outline and soldering footprint for SMC (DO-214AB); no separate"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0289,
        "at": "2026-10-28T16:47:50"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/ced8697f724e49c2d9edb36841d1093a.pdf",
        "pages": 5,
        "sha256": "c2c04b53fefd210a",
        "source_tier": "lcsc"
      },
      "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": [
          8,
          5.9,
          2.31
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "30dab4c2e22239b7e3694a4d45304e04255c6b70a79d28e9c34c6072ba647991",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "sha256": "b5ae863b905118b6eac0ed341fbcb8bcfb911aecf0b32e33064b0b4bd5f9d4dd",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "SMC",
      "Category": "TVS/Fuse/Board Level Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "Terminal Matte Tin-plated leads, Solderable per JESD22-B102",
        "page": 4,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "c2c04b53fefd210a1c27d0ab83a85255d21ab94ebc1577f35f693786d9521979"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c2c04b53fefd210a1c27d0ab83a85255d21ab94ebc1577f35f693786d9521979",
      "rows": [
        {
          "name": "Breakdown voltage (min)",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 14.3,
          "typ": null,
          "max": null,
          "conditions": "@ IT = 1 mA, TA = 25°C (Note 7)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Breakdown voltage (nom)",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "@ IT = 1 mA, TA = 25°C (Note 7)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Breakdown voltage (max)",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 15.8,
          "conditions": "@ IT = 1 mA, TA = 25°C (Note 7)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum reverse leakage current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@ VRWM = 12.8 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Clamping voltage",
          "symbol": "VC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 21.2,
          "conditions": "@ IPP = 71 A (Note 8)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum reverse peak pulse current",
          "symbol": "IPP",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 71,
          "conditions": "Surge current waveform per Figure 2 (Note 8)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.5,
          "conditions": "@ IF = 100 A (Note 5)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak power dissipation",
          "symbol": "PPK",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1500,
          "conditions": "@ TL = 25°C, pulse width = 1 ms (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Forward surge current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "@ TA = 25°C, 1/2 sine wave, PW = 8.3 ms (Note 4)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and storage temperature range",
          "symbol": "TJ, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Working peak reverse voltage",
          "symbol": "VRWM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 12.8,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Breakdown voltage temperature coefficient",
          "symbol": "MV BR",
          "kind": "temperature_coefficient",
          "unit": "%/°C",
          "min": null,
          "typ": 0.084,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation (lead)",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "@ TL = 75°C, measured zero lead length (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Derate above 75°C (lead)",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": 54.6,
          "max": null,
          "conditions": "Derate above TL = 75°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 18.3,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation (ambient)",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.75,
          "conditions": "@ TA = 25°C, FR-4 minimum recommended footprint (Note 3)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Derate above 25°C (ambient)",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": 6.1,
          "max": null,
          "conditions": "Derate above TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 165,
          "max": null,
          "conditions": "FR-4 minimum recommended footprint (Note 3)",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
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