main
Ray Set visibility: public 8d8229c 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "smd1812-750-12v",
  "title": "SMD1812-750-12V",
  "brief": "BNstar Resettable Fuses, 1812. 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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    "extractor-text"
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  "component": {
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    "manufacturer": "BNstar",
    "package": "1812",
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    "category": "Circuit Protection",
    "subcategory": "Resettable Fuses",
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      "model_3d_plain": "smd1812-750-12v-etched.glb",
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      "model_3d_step_plain": "smd1812-750-12v.step",
      "lbr": "smd1812-750-12v.lbr"
    },
    "distributor_links": {
      "lcsc": "C3039825"
    },
    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
      },
      "mouser": {
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        "status": "quota"
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    },
    "pins": [
      {
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        "name": "1",
        "type": "passive",
        "description": "One end terminal of the resettable PTC fuse, non-polarized and interchangeable with the other terminal; rated 7.5 A hold, 15.0 A trip, 12.0 V max, 50 A max fault current."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Other end terminal of the resettable PTC fuse, non-polarized and interchangeable with the other terminal; rated 7.5 A hold, 15.0 A trip, 12.0 V max, 50 A max fault current."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet drawing shows a two-terminal 1812 chip device (end terminals, dimensions A-E) but prin",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.0894,
        "at": "2026-10-18T09:57:44"
      },
      "datasheet": {
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        "pages": 3,
        "sha256": "820eb525b6f5898e",
        "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": [
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        "role": "plain",
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        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "15ec3c37c73c272b2cc8a1652be30c9d99a37f48118a427180e5f17418dc4b67",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "smd1812-750-12v-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
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        "sha256": "2074931c839fa729fcebc5051c5d9eeaffcba9affed835af9a12ec66d3a7e63d",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "BNstar",
      "Package": "1812",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
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      "rows": [
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          "name": "Maximum continuous voltage (rated voltage)",
          "symbol": "Vmax",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "Maximum continuous voltage device can withstand without damage at rated current",
          "source_page": 1,
          "source": "datasheet"
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        {
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          "symbol": "IH",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 7.5,
          "conditions": "25℃ still air; maximum current at which device will not trip",
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        {
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        {
          "name": "Maximum fault current at rated voltage",
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          "conditions": "At rated voltage; maximum fault current device can withstand without damage",
          "source_page": 1,
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        {
          "name": "Minimum resistance (initial, un-soldered state)",
          "symbol": "Rmin",
          "kind": "electrical",
          "unit": "Ω",
          "min": 0.0005,
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        {
          "name": "Maximum resistance at 25℃ after reflow",
          "symbol": "R1max",
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          "min": null,
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          "source_page": 1,
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        },
        {
          "name": "Typical power dissipation",
          "symbol": "Pdtyp",
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          "unit": "W",
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          "typ": 2,
          "max": null,
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          "name": "Hold current at ambient temperature -40 ℃ (derating)",
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          "typ": 12,
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          "source_page": 2,
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        {
          "name": "Hold current at ambient temperature -20 ℃ (derating)",
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        {
          "name": "Hold current at ambient temperature 0 ℃ (derating)",
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          "source_page": 2,
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        },
        {
          "name": "Hold current at ambient temperature 25 ℃ (derating)",
          "symbol": "",
          "kind": "recommended_operating",
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          "min": null,
          "typ": 7.5,
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          "conditions": "Ambient temperature 25 ℃ (thermal derating table)",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Hold current at ambient temperature 40 ℃ (derating)",
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          "name": "Hold current at ambient temperature 50 ℃ (derating)",
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          "name": "Hold current at ambient temperature 60 ℃ (derating)",
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          "kind": "recommended_operating",
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          "max": null,
          "conditions": "Ambient temperature 60 ℃ (thermal derating table)",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Hold current at ambient temperature 70 ℃ (derating)",
          "symbol": "",
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          "conditions": "Ambient temperature 70 ℃ (thermal derating table)",
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        {
          "name": "Recommended storage temperature",
          "symbol": "",
          "kind": "recommended_operating",
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          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Recommended storage relative humidity",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "% R.H.",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "Recommended storage conditions, maximum",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
    "smd1812-750-12v"
  ],
  "discovery_pitch": "SMD1812-750-12V (BNstar) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}