TPSMC68A

{
  "schema_version": 1,
  "type": "component",
  "slug": "tpsmc68a",
  "title": "TPSMC68A",
  "brief": "Littelfuse TVS, DO-214AB(SMCJ). 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",
    "circuit protection",
    "tpsmc68a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TPSMC68A",
    "manufacturer": "Littelfuse",
    "package": "DO-214AB(SMCJ)",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fe4080287c353e08b3ea1d595394f567.pdf",
    "parts": {
      "symbol": "tpsmc68a.kicad_sym",
      "footprint": "tpsmc68a.kicad_mod",
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      "model_3d_plain": "tpsmc68a-etched.glb",
      "model_3d_step": "tpsmc68a-etched.step",
      "model_3d_step_plain": "tpsmc68a.step",
      "lbr": "tpsmc68a.lbr"
    },
    "distributor_links": {
      "lcsc": "C1975364",
      "digikey": "F6549TR-ND",
      "mouser": "576-TPSMC68A"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T06:07:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "F6549TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-TPSMC68A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal of the unidirectional TVS, marked by the cathode band, and it goes to the positive side of the protected line (VR 58.10V, VBR 64.60V min at 1mA, VC 92.0V at 16.5A Ipp)."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the unidirectional TVS, and it goes to the return or ground side (max forward voltage 3.5V at 100A)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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: The datasheet shows no pin numbers for the two terminals. It gives only the Cathode and Anode in the; TPSMC68A is the unidirectional part, so it has a cathode and an anode. The bidirectional TPSMC68CA h"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0667,
        "at": "2026-10-22T06:06:52"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/fe4080287c353e08b3ea1d595394f567.pdf",
        "pages": 5,
        "sha256": "dd1f7a59f449c6bc",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tpsmc68a.step",
        "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": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tpsmc68a-etched.step",
        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          5.9,
          2.31
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8e3f3bd024e0b6007cb96b8b861807362c928bd4dc3661caa723b1cde7c37ae4",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "DO-214AB(SMCJ)",
      "Category": "Circuit 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": "dd1f7a59f449c6bcfe4462f651f69a0a8b5e1b141a530e3958c55d2980f951c1"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "dd1f7a59f449c6bcfe4462f651f69a0a8b5e1b141a530e3958c55d2980f951c1",
      "rows": [
        {
          "name": "Reverse Stand-off Voltage",
          "symbol": "VR",
          "kind": "electrical",
          "unit": "V",
          "min": 58.1,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Breakdown Voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 64.6,
          "typ": null,
          "max": 71.4,
          "conditions": "@ IT = 1 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Test Current",
          "symbol": "IT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Clamping Voltage",
          "symbol": "VC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 92,
          "conditions": "@ Ipp = 16.5 A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Peak Pulse Current",
          "symbol": "Ipp",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 16.5,
          "conditions": "",
          "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": "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": "PM(AV)",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "TA=50°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Forward Surge Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 200,
          "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": 3.5,
          "conditions": "at 100A, unidirectional only",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction 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": "Thermal Resistance Junction to Lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "Typical",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "Typical",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Voltage Tolerance",
          "symbol": "VBR tol",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "5% Vbr voltage tolerance (A suffix)",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
    "tpsmc68a"
  ],
  "discovery_pitch": "TPSMC68A (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "visibility": {
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}