KTH1721SH-ST3

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  "title": "KTH1721SH-ST3",
  "brief": "CONNTEK Hall Switches, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "KTH1721SH-ST3",
    "manufacturer": "CONNTEK",
    "package": "SOT-23-3L",
    "pin_count": 3,
    "category": "Magnetic Sensors",
    "subcategory": "Hall Switches",
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    "distributor_links": {
      "lcsc": "C19631609"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply input, operating range 1.8 V to 5.5 V; a 1 μF capacitor between VDD and GND placed as close to the pin as possible is recommended to filter supply noise."
      },
      {
        "number": "2",
        "name": "OUTPUT",
        "type": "output",
        "description": "CMOS push-pull output that goes low when the applied north-pole field exceeds BOP and stays low until the field drops below BRP, then goes high."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection."
      }
    ],
    "provenance": {
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers, names and functions for SOT-23-3L are taken from the page 2 pin table. The OUTPUT behav; The ordering MPN KTH1721SH-ST3 is the 25 Hz variant in SOT-23-3L (-50 Gauss BOP). The datasheet's pi"
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        "cost_usd": 0.0305,
        "at": "2026-10-18T00:46:21"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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          2.5,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "CONNTEK",
      "Package": "SOT-23-3L",
      "Category": "Magnetic Sensors",
      "Pins": "3"
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    "characteristics": {
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          "name": "Supply voltage (recommended operating)",
          "symbol": "VDD",
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          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "芯片工作",
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        {
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          "max": 6,
          "conditions": "",
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        {
          "name": "Reverse supply voltage",
          "symbol": "VDD_REV",
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          "typ": null,
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        {
          "name": "Output drive current",
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          "kind": "absolute_maximum",
          "unit": "mA",
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          "max": 5,
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          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "oC",
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          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Maximum junction temperature",
          "symbol": "TJ",
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          "min": null,
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        },
        {
          "name": "ESD HBM capability",
          "symbol": "ESD HBM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 8000,
          "conditions": "HBM 人体模型",
          "source_page": 5,
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        },
        {
          "name": "Operating temperature range",
          "symbol": "TA",
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          "unit": "oC",
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          "typ": null,
          "max": 125,
          "conditions": "芯片工作",
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        },
        {
          "name": "Output low voltage (S series, 25Hz)",
          "symbol": "VOL",
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          "unit": "V",
          "min": null,
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          "max": 0.15,
          "conditions": "IOUT=1mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (S series, 25Hz)",
          "symbol": "VDD",
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          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "工作状态",
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        },
        {
          "name": "Magnetic operating point BOPN (H series)",
          "symbol": "BOPN",
          "kind": "electrical",
          "unit": "Gauss",
          "min": -60,
          "typ": -50,
          "max": -40,
          "conditions": "TA=+25℃， VDD=1.8V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Magnetic release point BRPN (H series)",
          "symbol": "BRPN",
          "kind": "electrical",
          "unit": "Gauss",
          "min": -45,
          "typ": -35,
          "max": -25,
          "conditions": "TA=+25℃， VDD=1.8V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Average supply current (S series, 25Hz)",
          "symbol": "IDD(AVG)",
          "kind": "electrical",
          "unit": "μA",
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          "typ": 0.9,
          "max": null,
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          "source_page": 6,
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        },
        {
          "name": "Awake state supply current (S series, 25Hz)",
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          "max": null,
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          "source_page": 6,
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        {
          "name": "Sleep state supply current (S series, 25Hz)",
          "symbol": "IDD(Sleep)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "TA=+25℃， VDD=1.8V",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Wake-up time (S series, 25Hz)",
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          "kind": "electrical",
          "unit": "μs",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "工作状态",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Period (S series, 25Hz)",
          "symbol": "TPERIOD",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "工作状态",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Hysteresis |BOPN|-|BRPN| (H series)",
          "symbol": "BHY",
          "kind": "electrical",
          "unit": "Gauss",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
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  "author": {
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    "email": "[email protected]"
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