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Ray Set visibility: public 1ac95f6 3d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "t1820b",
  "title": "T1820B",
  "brief": "Mysentech Temperature Sensors, TO-92S. 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",
    "sensors",
    "t1820b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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": {
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      "factory_chain": {
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        "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"
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        "pages": 27,
        "sha256": "87a9b25ba874d01d",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "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",
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        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Mysentech",
      "Package": "TO-92S",
      "Category": "Sensors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "87a9b25ba874d01db972aacd84c39bdbdb7a97590974d0583f94247d197d4537",
      "rows": [
        {
          "name": "Temperature error (T1820B, 0℃ to +60℃)",
          "symbol": "tERR",
          "kind": "tolerance",
          "unit": "℃",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "0℃ to +60℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": 3.3,
          "max": 5.5,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (absolute maximum)",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Maximum voltage on pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Input current on pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "",
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        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -110,
          "typ": null,
          "max": 160,
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        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -103,
          "typ": null,
          "max": 153,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM (human body model)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOL = -3 mA",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "uA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Pull-up resistor",
          "symbol": "Rup",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 1,
          "typ": 4.7,
          "max": 10,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "EEPROM write (erase/program) time",
          "symbol": "tWR",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "EEPROM endurance",
          "symbol": "NEEWR",
          "kind": "electrical",
          "unit": "次",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "-40°C to +125°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Measurement temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -103,
          "typ": null,
          "max": 153,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Single-shot time slot length",
          "symbol": "tSLOT",
          "kind": "timing",
          "unit": "µs",
          "min": 60,
          "typ": null,
          "max": 120,
          "conditions": "见备注",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "Recovery time",
          "symbol": "tREC",
          "kind": "timing",
          "unit": "µs",
          "min": 1,
          "typ": null,
          "max": 5,
          "conditions": "见备注 1",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "Write 0 low time",
          "symbol": "tLOW0",
          "kind": "timing",
          "unit": "µs",
          "min": 60,
          "typ": 60,
          "max": 120,
          "conditions": "见备注",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "Write 1 low time",
          "symbol": "tLOW1",
          "kind": "timing",
          "unit": "µs",
          "min": 1,
          "typ": 5,
          "max": 15,
          "conditions": "见备注",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "Read data valid time",
          "symbol": "tRDV",
          "kind": "timing",
          "unit": "µs",
          "min": 5,
          "typ": null,
          "max": 15,
          "conditions": "见备注",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "Reset low time",
          "symbol": "tRSTL",
          "kind": "timing",
          "unit": "µs",
          "min": 480,
          "typ": null,
          "max": 960,
          "conditions": "见备注",
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        },
        {
          "name": "Presence detect high time",
          "symbol": "tPDHIGH",
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          "max": 60,
          "conditions": "见备注",
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        },
        {
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          "kind": "timing",
          "unit": "µs",
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          "typ": 115,
          "max": 240,
          "conditions": "见备注",
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        },
        {
          "name": "Parasitic mode MCU-side VDD supply range",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
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        {
          "name": "Standby current, single-shot measurement mode",
          "symbol": "IDD",
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          "unit": "uA",
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          "max": null,
          "conditions": "空闲状态(单次测量模式)",
          "source_page": 7,
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        },
        {
          "name": "Standby current, periodic measurement mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "空闲状态(周期测量模式)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Peak current during measurement",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 360,
          "max": null,
          "conditions": "测量时的电流",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Average current, single-shot (AVG=8, 1 measurement/s)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
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          "max": null,
          "conditions": "单次测量模式,(AVG=8,1 次测量/s)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "EEPROM data retention",
          "symbol": "tEEDR",
          "kind": "electrical",
          "unit": "年",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "-55°C to +125°C",
          "source_page": 8,
          "source": "datasheet"
        }
      ]
    }
  },
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    "viewers",
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  "discovery_triggers": [
    "t1820b"
  ],
  "discovery_pitch": "T1820B (Mysentech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}