T1820B

{
  "slug": "t1820b",
  "version": "0.1.0",
  "type": "component",
  "description": "Mysentech Temperature Sensors, TO-92S. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "sensors",
    "t1820b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "t1820b.kicad_sym",
    "t1820b.kicad_mod",
    "t1820b.glb",
    "t1820b.step",
    "t1820b.lbr",
    "docs/hero.png",
    "docs/t1820b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "t1820b-hero.glb",
    "t1820b-hero.overlay.json",
    "t1820b-etched.glb"
  ],
  "component": {
    "mpn": "T1820B",
    "manufacturer": "Mysentech",
    "package": "TO-92S",
    "pin_count": 3,
    "category": "Sensors",
    "subcategory": "Temperature Sensors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/079e4f2b5981e5e0a86e3e0a3f8c5695.pdf",
    "parts": {
      "symbol": "t1820b.kicad_sym",
      "footprint": "t1820b.kicad_mod",
      "model_3d": "t1820b-hero.glb",
      "model_3d_plain": "t1820b-etched.glb",
      "model_3d_step": "t1820b-etched.step",
      "model_3d_step_plain": "t1820b.step",
      "lbr": "t1820b.lbr"
    },
    "distributor_links": {
      "lcsc": "C48641769"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:30:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the sensor (地), listed in the page 3 pin table for the TO92S package."
      },
      {
        "number": "2",
        "name": "DQ",
        "type": "bidirectional",
        "description": "Single-wire (One Wire) digital bus pin, open-drain with an external pull-up of about 4.7 kΩ (1 kΩ to 10 kΩ allowed per the electrical table), with VIL max 0.3*VDD and VIH min 0.7*VDD, and VOL max 0.4 V at IOL = -3 mA."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin with a stated operating range of 1.8 V to 5.5 V (3.3 V typical), and 3.3 V or higher is recommended for long cables or multi-drop bus operation."
      }
    ],
    "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: The page 3 pin table is the only pinout source in the extracted text. The package drawing and 正视图 (f; The T1820B ordering entry (page 1 product table, page 26 ordering table) confirms TO92S is the packa"
        ],
        "pages_sent": 27,
        "cost_usd": 0.0852,
        "at": "2026-10-17T20:28:58"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/079e4f2b5981e5e0a86e3e0a3f8c5695.pdf",
        "pages": 27,
        "sha256": "87a9b25ba874d01d",
        "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": "t1820b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "t1820b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}