main
Ray Set visibility: public 7ac8085 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "sf-0603s300-2",
  "title": "SF-0603S300-2",
  "brief": "BOURNS Disposable Fuses, 0603. 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",
    "sf-0603s300-2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SF-0603S300-2",
    "manufacturer": "BOURNS",
    "package": "0603",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "Disposable Fuses",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590008752155373568",
    "parts": {
      "symbol": "sf-0603s300-2.kicad_sym",
      "footprint": "sf-0603s300-2.kicad_mod",
      "model_3d": "sf-0603s300-2-hero.glb",
      "model_3d_plain": "sf-0603s300-2-etched.glb",
      "model_3d_step": "sf-0603s300-2-etched.step",
      "model_3d_step_plain": "sf-0603s300-2.step",
      "lbr": "sf-0603s300-2.lbr"
    },
    "distributor_links": {
      "lcsc": "C913268"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T09:28:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "First end-cap terminal of the 3.00 A slow-blow fuse (rated 32 VDC, 0.016 Ω typ.), non-polarized and interchangeable with the other terminal."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second end-cap terminal of the 3.00 A slow-blow fuse (rated 32 VDC, 0.016 Ω typ.), non-polarized and interchangeable with the other terminal."
      }
    ],
    "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 drawings (page 3) show a two-terminal chip fuse with two end-cap terminals, but they p",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 5,
        "cost_usd": 0.1744,
        "at": "2026-10-18T09:25:24"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590008752155373568",
        "pages": 5,
        "sha256": "afc4c96bfbc20b5b",
        "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": "sf-0603s300-2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          0.8,
          0.45
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2178c56deff687266eecad5e197b7ab2d230afae45def1320cff0ea839f46b49",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sf-0603s300-2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          0.8,
          0.45
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b07b64fc64031a67d80c592df448c5a0e68404515a0249383225e064bdb81437",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BOURNS",
      "Package": "0603",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "afc4c96bfbc20b5b918e6d675883bb652030d6b0b932264eaa80ad4b7257d369",
      "rows": [
        {
          "name": "Clearing time at 250 % of rated current (max)",
          "symbol": "",
          "kind": "timing",
          "unit": "seconds",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "250 % of rated current, 25 °C ambient",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Clearing time at 100 % of rated current (min)",
          "symbol": "",
          "kind": "timing",
          "unit": "hours",
          "min": 4,
          "typ": null,
          "max": null,
          "conditions": "100 % of rated current, 25 °C ambient",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance tolerance",
          "symbol": "R",
          "kind": "tolerance",
          "unit": "%",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "Resistance measured with ≤10 % rated current at 25 °C ambient",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance (typical, cold)",
          "symbol": "R",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.016,
          "max": null,
          "conditions": "Measured with ≤10 % rated current at 25 °C ambient",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Rated current",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "Model SF-0603S300-2",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Rated voltage (DC)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "VDC",
          "min": null,
          "typ": null,
          "max": 32,
          "conditions": "Model SF-0603S300-2 (32 VDC rated group)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Interrupting rating",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "@ 32 VDC",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical melting I2t",
          "symbol": "I2t",
          "kind": "electrical",
          "unit": "A2s",
          "min": null,
          "typ": 0.21,
          "max": null,
          "conditions": "Melting I2t calculated at 10 times rated current",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -20,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 5,
          "typ": null,
          "max": 35,
          "conditions": "Storage conditions",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage humidity",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "%",
          "min": 40,
          "typ": null,
          "max": 75,
          "conditions": "Storage conditions",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Shelf life",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "years",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "From manufacturing date",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Temperature rise",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "100 % of rated current, surface temperature",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after solder heat",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "260 °C ±5 °C, 10 seconds ±1 second",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after dry heat",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "105 °C ±5 °C, 1000 hours",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Resistance change after thermal shock",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "-20 °C / +25 °C / +125 °C / +25 °C, 10 cycles",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Residual resistance after fusing",
          "symbol": "R",
          "kind": "electrical",
          "unit": "k ohms",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "Measure DC resistance after fusing",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Fusing time at 250 % rated current",
          "symbol": "",
          "kind": "timing",
          "unit": "seconds",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "250 % of rated current",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Solderability coverage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "% coverage",
          "min": 95,
          "typ": null,
          "max": null,
          "conditions": "235 °C ±5 °C or 245 °C ±5 °C (lead free), 2 ±0.5 seconds",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reflow peak temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 245,
          "typ": null,
          "max": 250,
          "conditions": "Peak, 5 seconds (+0/-5 °C)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reflow preheating temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 150,
          "typ": null,
          "max": 180,
          "conditions": "Pre-heating zone, 90 ± 30 seconds",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reflow soldering zone temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 230,
          "typ": null,
          "max": null,
          "conditions": "Soldering zone, 30 ± 10 seconds",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sf-0603s300-2"
  ],
  "discovery_pitch": "SF-0603S300-2 (BOURNS) 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",
    "sf-0603s300-2.kicad_sym",
    "sf-0603s300-2.kicad_mod",
    "sf-0603s300-2.glb",
    "sf-0603s300-2.step",
    "sf-0603s300-2.lbr",
    "docs/hero.png",
    "docs/sf-0603s300-2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sf-0603s300-2-hero.glb",
    "sf-0603s300-2-hero.overlay.json",
    "sf-0603s300-2-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}