SZSMF15AT1G

{
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  "type": "component",
  "slug": "szsmf15at1g",
  "title": "SZSMF15AT1G",
  "brief": "Littelfuse ESD And Surge Protection (TVS/ESD), SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "circuit protection",
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  "component": {
    "mpn": "SZSMF15AT1G",
    "manufacturer": "Littelfuse",
    "package": "SOD-123FL",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8555016545952509952",
    "parts": {
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      "lbr": "szsmf15at1g.lbr"
    },
    "distributor_links": {
      "lcsc": "C3707912",
      "digikey": "18-SZSMF15AT1GTR-ND",
      "mouser": "576-SZSMF15AT1G"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T08:02:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "18-SZSMF15AT1GTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-SZSMF15AT1G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode, identified by the polarity band; the part is rated for a working peak reverse voltage VRWM of 15 V, with breakdown VBR of 16.70 to 18.50 V and clamping voltage VC of 24.4 V maximum."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode, the end opposite the polarity band; maximum reverse leakage current IR is 1 µA at VRWM of 15 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 pin numbers and names come from the 'Soldering Footprint' figure on page 5 (labeled 1 Cathode, 2; The SZSMF15AT1G is the uni-directional variant (part numbering system: 'A Uni Directional TVS'; page; The pin type 'passive' is a KiCad class choice for a two-terminal diode, not a value stated in the d"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0304,
        "at": "2026-10-20T08:02:35"
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      "datasheet": {
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        "pages": 6,
        "sha256": "926abd2672dca903",
        "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
      }
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.6,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "132323445e3d1f9231e81c083cd88a33cd204dd8b96063bb2ed1f3ab4470c7e7",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "f68d87affa9b1a014d7ff7f38334a14bac6d628b2426e61b391b9b54e98a783b",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "SOD-123FL",
      "Category": "Circuit 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": "926abd2672dca903dfdf4dfcae57336bfa32b44d4e509d3cdafb77f318b7fd01"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "926abd2672dca903dfdf4dfcae57336bfa32b44d4e509d3cdafb77f318b7fd01",
      "rows": [
        {
          "name": "Breakdown Voltage @ IT (Nominal 17.60 V, row for 15 V stand-off)",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 16.7,
          "typ": 17.6,
          "max": 18.5,
          "conditions": "IT = 1 mA (Note 6); TL = 30°C unless otherwise noted; VBR measured at TA = 25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Leakage Current @ VRWM",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "@ VRWM = 15 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Clamping Voltage @ IPP (VC(Max))",
          "symbol": "VC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 24.4,
          "conditions": "@ IPP = 8.2 A (Note 7); surge waveform per Figure 2",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Peak Pulse Current (IPP(Max))",
          "symbol": "IPP",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 8.2,
          "conditions": "Surge current waveform per Figure 2, derate per Figure 3 (Note 7)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Forward Voltage (I-V curve characteristics)",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.5,
          "conditions": "TA = 25°C unless otherwise noted; IF = 12 A (Note 4)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Peak Pulse Power Dissipation (10/1000 µs)",
          "symbol": "PPK",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "PW = 10/1000 µs; non-repetitive, TA = 25°C (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Peak Pulse Power Dissipation (8/20 µs)",
          "symbol": "PPK",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "PW = 8/20 µs; TA = 25°C (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 385,
          "conditions": "TA = 25°C (Note 3); mounted with recommended minimum pad size, DC board FR-4",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Ambient",
          "symbol": "RƟJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 325,
          "conditions": "Note 3: recommended minimum pad size, DC board FR-4",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Lead",
          "symbol": "RƟJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 26,
          "conditions": "Note 3",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and Storage Temperature Range",
          "symbol": "TJ, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "SZSMF15AT1G (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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