RH791A

{
  "schema_version": 1,
  "type": "component",
  "slug": "rh791a",
  "title": "RH791A",
  "brief": "RONGHE Microelectronics USB Converters, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "rh791a"
  ],
  "component": {
    "mpn": "RH791A",
    "manufacturer": "RONGHE Microelectronics",
    "package": "SOT-23-5L",
    "pin_count": 5,
    "category": "Interface",
    "subcategory": "USB Converters",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2402021529_RONGHE-Microelectronics-RH791A_C240191.pdf",
    "parts": {
      "symbol": "rh791a.kicad_sym",
      "footprint": "rh791a.kicad_mod",
      "model_3d": "rh791a-etched.glb",
      "model_3d_plain": "rh791a.glb",
      "model_3d_step": "rh791a-etched.step",
      "model_3d_step_plain": "rh791a.step",
      "lbr": "rh791a.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Pin is not internally bonded; leave floating or tie as convenient during PCB layout."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Negative supply / ground return for the device. Connect to the system 0 V rail."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply, 4.5-5.5 V (typ. 5.0 V). Typical operating current 140 uA. A ~500 Ω-1 kΩ series resistor from VBUS and a 1 uF bypass cap to GND are recommended to guard against AC-DC overshoot up to 7-9 V."
      },
      {
        "number": "4",
        "name": "DP",
        "type": "bidirectional",
        "description": "USB D+ data line to the downstream USB connector. Driven to 2.7 V (Divider3, 12 W Apple) typical; also supports 1.2 V (Samsung), short-to-DM (BC1.2 DCP / CTIS YD/T 1591-2009). ESD >6.5 kV HBM."
      },
      {
        "number": "5",
        "name": "DM",
        "type": "bidirectional",
        "description": "USB D- data line to the downstream USB connector. Driven to 2.7 V (Divider3, 12 W Apple) typical; also supports 1.2 V (Samsung), short-to-DP (BC1.2 DCP / CTIS YD/T 1591-2009). ESD >6.5 kV HBM."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2402021529_RONGHE-Microelectronics-RH791A_C240191.pdf",
        "pages": 7,
        "sha256": "858bd6993b5b7770",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "rh791a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rh791a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4dcd1f86bb651f78092f86324ba4640c1cadb18e98cc1df0e66e0bcfd6916a24",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "RONGHE Microelectronics",
      "Package": "SOT-23-5L",
      "Category": "Interface",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "rh791a"
  ],
  "discovery_pitch": "RH791A (RONGHE Microelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rh791a.kicad_sym",
    "rh791a.kicad_mod",
    "rh791a.glb",
    "rh791a.step",
    "rh791a.lbr",
    "docs/hero.png",
    "docs/rh791a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T04:52:35.642Z"
}