BLM3401

{
  "slug": "blm3401",
  "version": "0.1.0",
  "type": "component",
  "description": "BL Shanghai Belling MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "blm3401",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "blm3401.kicad_sym",
    "blm3401.kicad_mod",
    "blm3401.glb",
    "blm3401.step",
    "blm3401.lbr",
    "docs/hero.png",
    "docs/blm3401-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "blm3401-hero.glb",
    "blm3401-hero.overlay.json"
  ],
  "component": {
    "mpn": "BLM3401",
    "manufacturer": "BL Shanghai Belling",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "MOSFETs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586178614127153152",
    "parts": {
      "symbol": "blm3401.kicad_sym",
      "footprint": "blm3401.kicad_mod",
      "model_3d": "blm3401-hero.glb",
      "model_3d_plain": "blm3401.glb",
      "model_3d_step": "blm3401-etched.step",
      "model_3d_step_plain": "blm3401.step",
      "lbr": "blm3401.lbr"
    },
    "distributor_links": {
      "lcsc": "C90479"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T00:31:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "G",
        "type": "input",
        "description": "Gate; VGS absolute maximum ±20V, gate threshold -0.7V to -1.3V at ID=-250µA, and the device operates with gate voltages as low as -2.5V."
      },
      {
        "number": "2",
        "name": "S",
        "type": "passive",
        "description": "Source of the P-channel MOSFET; the diode forward voltage VSD is -1.2V max at IS=-1A."
      },
      {
        "number": "3",
        "name": "D",
        "type": "passive",
        "description": "Drain; VDS is -30V max, continuous ID is -4.2A and pulsed IDM is -30A."
      }
    ],
    "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": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 6,
        "cost_usd": 0.1838,
        "at": "2026-10-09T00:30:25"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586178614127153152",
        "pages": 6,
        "sha256": "925a8cb0af8b5e0b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "blm3401.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "blm3401-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bfa502f54a26eed76ac7f44161473398a9359af571ccfae152e7a656723f2ebd",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}