SHT41-AD1F-R2

{
  "slug": "sht41-ad1f-r2",
  "version": "0.1.0",
  "type": "component",
  "description": "SENSIRION Global Sourcing Parts, DFN-4(1.5x1.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "global sourcing parts",
    "sht41-ad1f-r2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sht41-ad1f-r2.kicad_sym",
    "sht41-ad1f-r2.kicad_mod",
    "sht41-ad1f-r2.glb",
    "sht41-ad1f-r2.step",
    "sht41-ad1f-r2.lbr",
    "docs/hero.png",
    "docs/sht41-ad1f-r2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sht41-ad1f-r2-hero.glb",
    "sht41-ad1f-r2-hero.overlay.json",
    "sht41-ad1f-r2-etched.glb"
  ],
  "component": {
    "mpn": "SHT41-AD1F-R2",
    "manufacturer": "SENSIRION",
    "package": "DFN-4(1.5x1.5)",
    "pin_count": 4,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906215180955648",
    "parts": {
      "symbol": "sht41-ad1f-r2.kicad_sym",
      "footprint": "sht41-ad1f-r2.kicad_mod",
      "model_3d": "sht41-ad1f-r2-hero.glb",
      "model_3d_plain": "sht41-ad1f-r2-etched.glb",
      "model_3d_step": "sht41-ad1f-r2-etched.step",
      "model_3d_step_plain": "sht41-ad1f-r2.step",
      "lbr": "sht41-ad1f-r2.lbr"
    },
    "distributor_links": {
      "lcsc": "C7461862"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T18:50:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial data line of the I2C interface, bidirectional, supporting I2C FM+ per the datasheet features."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock line of the I2C interface, unidirectional input to the sensor."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage, operating range 1.08 V to 3.6 V per the datasheet features."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the sensor."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package match: the MPN SHT41-AD1F-R2 is listed in Table 11 (ordering options, PAGE 20) as material 3; Exposed die pad: Figure 18 notes that the die pad is not directly connected to any pin. Section 5.3 ; Package dimensions: the text does not give the 1.5 x 1.5 mm size, only the 'dual-flat-no-leads' desc"
        ],
        "pages_sent": 9,
        "cost_usd": 0.042,
        "at": "2026-10-17T18:47:51"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906215180955648",
        "pages": 22,
        "sha256": "6abf277de684fff3",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sht41-ad1f-r2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.52,
          1.5,
          0.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "8ff5bfde7b2497d8e1c65a0dc81e31ef0cec04222f13a30e75d991ac0ebf84a8",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sht41-ad1f-r2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.52,
          1.5,
          0.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e8df44cc4bdd1d8db3517b800c7531d1ffbbc2cf01b9b259b00c20611d53f073",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}