main
Ray Set visibility: public 30924eb 4d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "rt9742sngv",
  "title": "RT9742SNGV",
  "brief": "Richtek Tech Power Distribution Switches, SOT-23-3. 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",
    "power management (pmic)",
    "rt9742sngv",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "RT9742SNGV",
    "manufacturer": "Richtek Tech",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Distribution Switches",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836442517479424",
    "parts": {
      "symbol": "rt9742sngv.kicad_sym",
      "footprint": "rt9742sngv.kicad_mod",
      "model_3d": "rt9742sngv-hero.glb",
      "model_3d_plain": "rt9742sngv-etched.glb",
      "model_3d_step": "rt9742sngv-etched.step",
      "model_3d_step_plain": "rt9742sngv.step",
      "lbr": "rt9742sngv.lbr"
    },
    "distributor_links": {
      "lcsc": "C3235509",
      "digikey": "1028-RT9742SNGVTR-ND",
      "mouser": "835-RT9742SNGV"
    },
    "distributor_check": {
      "checked_at": "2026-11-03T00:15:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1028-RT9742SNGVTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "835-RT9742SNGV",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input voltage and MOSFET drain, operating range 2.7V to 6V (7V absolute maximum), with a 10µF low-ESR ceramic capacitor to GND placed close to the pin recommended."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Switch output (MOSFET source) that delivers load current from VIN, with current limit at 0.7A typical for the RT9742S and a 0.1µF output capacitor to GND recommended."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      }
    ],
    "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": [
          "extractor flagged: Pin 1 is not numbered in the SOT-23-3 drawing (only 2 and 3 are printed). Pin 1 is inferred as VIN, ; The ordering table marks RT9742SNGV as 0.5A, no discharge function, with a 'V' mark in the package c",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 19,
        "cost_usd": 0.6768,
        "at": "2026-11-03T00:15:17"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836442517479424",
        "pages": 19,
        "sha256": "4512463eff0aa45d",
        "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": "rt9742sngv.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-11-03",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rt9742sngv-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3bd52e7a182ad811577be9d7c56df9a5c1cce51bd69a9307bac1650030dd807b",
        "checked": "2026-11-03",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Richtek Tech",
      "Package": "SOT-23-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4512463eff0aa45d4b2c84215163d9a3589d7a0a16a2d37fa7dc20015dd62f14",
      "rows": [
        {
          "name": "Input Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 30,
          "max": 40,
          "conditions": "Switch on, VOUT = open",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Shutdown Current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VIN = 5V, no load on OUT, device OFF, VEN = 0V or VEN = 5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Switch On Resistance (RT9742XXJ5/V variant, applies to SNGV)",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "RT9742XXJ5/V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Over Current Trip Threshold (RT9742Q/R/S, 0.5A class)",
          "symbol": "ITRIP",
          "kind": "electrical",
          "unit": "A",
          "min": 0.65,
          "typ": 0.89,
          "max": 1,
          "conditions": "VIN = 5V, 100A/s",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current Limit (RT9742Q/R/S, 0.5A class)",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": 0.6,
          "typ": 0.7,
          "max": 0.8,
          "conditions": "VOUT = 1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN/EN Threshold Logic_High Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "VIN = 2.7V to 6V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN/EN Threshold Logic_Low Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.75,
          "conditions": "VIN = 2.7V to 6V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN/EN Input Current",
          "symbol": "IEN/EN",
          "kind": "electrical",
          "unit": "µA",
          "min": 0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "VEN = 0V, VEN = 5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Leakage Current",
          "symbol": "ILEAKAGE",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.5,
          "max": 1,
          "conditions": "VEN = 0V, RLOAD = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reverse Leakage Current",
          "symbol": "IREV",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VOUT = 5V, VIN = 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "FLG Off Current",
          "symbol": "IFLG_OFF",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": 1,
          "conditions": "VFLG = 5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Under-Voltage Lockout (VIN rising)",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2.4,
          "conditions": "VIN rising",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage VIN (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN Voltage (recommended)",
          "symbol": "VEN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range (recommended)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Range (recommended)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage VIN (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN Voltage (absolute maximum)",
          "symbol": "VEN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "FLAG Voltage (absolute maximum)",
          "symbol": "VFLAG",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation, SOT-23-3",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.41,
          "conditions": "TA = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature (absolute maximum)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 sec.",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD Susceptibility HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Human Body Model",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance, SOT-23-3",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 243.3,
          "max": null,
          "conditions": "JEDEC 51-7 four-layer test board",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "rt9742sngv"
  ],
  "discovery_pitch": "RT9742SNGV (Richtek Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "rt9742sngv.kicad_sym",
    "rt9742sngv.kicad_mod",
    "rt9742sngv.glb",
    "rt9742sngv.step",
    "rt9742sngv.lbr",
    "docs/hero.png",
    "docs/rt9742sngv-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rt9742sngv-hero.glb",
    "rt9742sngv-hero.overlay.json",
    "rt9742sngv-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}