SA20A

{
  "schema_version": 1,
  "type": "component",
  "slug": "sa20a",
  "title": "SA20A",
  "brief": "EIC Semicon TVS, DO-41. 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",
    "tvs-fuse-board level protection",
    "sa20a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SA20A",
    "manufacturer": "EIC Semicon",
    "package": "DO-41",
    "pin_count": 2,
    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a0c93f602de75f7582b701566ed11247.pdf",
    "parts": {
      "symbol": "sa20a.kicad_sym",
      "footprint": "sa20a.kicad_mod",
      "model_3d": "sa20a-hero.glb",
      "model_3d_step": "sa20a.step",
      "lbr": "sa20a.lbr",
      "model_3d_plain": "sa20a.glb"
    },
    "distributor_links": {
      "lcsc": "C1974883",
      "digikey": "SA20ALFTR-ND",
      "mouser": "576-SA20A"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T15:40:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SA20ALFTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-SA20A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode end of the unidirectional TVS, marked by the color band; connected to the positive side, with VRWM 20.0 V, VBR 22.2-24.5 V at 1.0 mA, and max clamping voltage 32.4 V at 15.4 A for SA20A."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode end of the unidirectional TVS (no band); for SA20A it conducts in reverse breakdown above VBR min 22.2 V, with 500 W peak pulse power (1 ms) capability."
      }
    ],
    "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: Datasheet does not print pin numbers for the axial DO-41 package; pins 1 (cathode) and 2 (anode) are"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0562,
        "at": "2026-10-22T15:38:03"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a0c93f602de75f7582b701566ed11247.pdf",
        "pages": 4,
        "sha256": "9697f9ad0c78b23a",
        "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": "sa20a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.96,
          2.72,
          5.71
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c3e23d4b276811b74eecb329bd4480209ad3dbc8cf6e6e3f2a5b542c5ca343c1",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "EIC Semicon",
      "Package": "DO-41",
      "Category": "TVS/Fuse/Board Level Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "9697f9ad0c78b23a47381d30638cc10a33b41a45016c8985d8697fc0b33cc3e4",
      "rows": [
        {
          "name": "Breakdown Voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 22.2,
          "typ": null,
          "max": 24.5,
          "conditions": "@ It = 1.0 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Test Current",
          "symbol": "It",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VBR measured after It applied for 300 µs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Working Peak Reverse Voltage",
          "symbol": "VRWM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Leakage Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "@ VRWM",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Surge Current",
          "symbol": "IRSM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 15.4,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Clamping Voltage",
          "symbol": "VRSM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 32.4,
          "conditions": "@ IRSM",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Temperature Variation of VBR",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "mV/°C",
          "min": null,
          "typ": null,
          "max": 23,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak Power Dissipation",
          "symbol": "PPK",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "Ta = 25 °C, Tp=1ms (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Steady State Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "TL = 75 °C, lead lengths 0.375\" (9.5mm) (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and Storage Temperature Range",
          "symbol": "TJ, TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 175,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sa20a"
  ],
  "discovery_pitch": "SA20A (EIC Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sa20a.kicad_sym",
    "sa20a.kicad_mod",
    "sa20a.glb",
    "sa20a.step",
    "sa20a.lbr",
    "docs/hero.png",
    "docs/sa20a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sa20a-hero.glb",
    "sa20a-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}