RS331XF

{
  "schema_version": 1,
  "type": "component",
  "slug": "rs331xf",
  "title": "RS331XF",
  "brief": "Jiangsu RUNIC Tech Comparators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "op-amp-cmp",
    "rs331xf"
  ],
  "component": {
    "mpn": "RS331XF",
    "manufacturer": "Jiangsu RUNIC Tech",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Op-amp/Cmp",
    "subcategory": "Comparators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8c57df6e59a37e4dfe5b1d04d5d74ac8.pdf",
    "parts": {
      "symbol": "rs331xf.kicad_sym",
      "footprint": "rs331xf.kicad_mod",
      "model_3d": "rs331xf-etched.glb",
      "model_3d_plain": "rs331xf.glb",
      "model_3d_step": "rs331xf-etched.step",
      "model_3d_step_plain": "rs331xf.step",
      "lbr": "rs331xf.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "+IN",
        "type": "input",
        "description": "Noninverting comparator input. Common-mode range extends from (V-)-0.1V to (V+)+0.1V; input bias current 1pA typ, 10pA max. Diode-clamped to supply rails - limit external swing beyond rails to ±10mA."
      },
      {
        "number": "2",
        "name": "V-",
        "type": "power_in",
        "description": "Negative (lowest) power supply pin. Tied to ground for single-supply operation (Vs = 1.8V to 5.5V), or to a negative rail for dual-supply operation (±0.9V to ±2.75V)."
      },
      {
        "number": "3",
        "name": "-IN",
        "type": "input",
        "description": "Inverting comparator input. Common-mode range extends from (V-)-0.1V to (V+)+0.1V; input bias current 1pA typ, 10pA max. Diode-clamped to supply rails - limit external swing beyond rails to ±10mA."
      },
      {
        "number": "4",
        "name": "OUT",
        "type": "output",
        "description": "Open-drain comparator output. Requires external pull-up resistor (VOH pull-up range up to 5.6V). VSAT ≈150mV typ at IO≤4mA; sink capability 27mA typ at Vs=5V; leakage 0.01nA typ. Output diode-clamped to rails - external signals must stay within ±0.5V of rails and ±55mA."
      },
      {
        "number": "5",
        "name": "V+",
        "type": "power_in",
        "description": "Positive (highest) power supply pin. Single-supply 1.8V to 5.5V (absolute max 7V vs V-). Bypass locally with 100nF ceramic to V-."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/8c57df6e59a37e4dfe5b1d04d5d74ac8.pdf",
        "pages": 16,
        "sha256": "92fbba6bb4adde8a",
        "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": "rs331xf.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": "rs331xf-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": "59ee530225e09a145d16afeb07765b7067e75e91aeb946979b0c7868127c6e0d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Jiangsu RUNIC Tech",
      "Package": "SOT-23-5",
      "Category": "Op-amp/Cmp",
      "Pins": "5"
    }
  },
  "variants": [
    {
      "mpn": "RS331XF",
      "kind": "packaging"
    },
    {
      "mpn": "RS331XFXK",
      "kind": "packaging"
    },
    {
      "mpn": "RS331XFXP",
      "kind": "packaging"
    },
    {
      "mpn": "RS331XFXQ",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "rs331xf"
  ],
  "discovery_pitch": "RS331XF (Jiangsu RUNIC Tech) 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",
    "rs331xf.kicad_sym",
    "rs331xf.kicad_mod",
    "rs331xf.glb",
    "rs331xf.step",
    "rs331xf.lbr",
    "docs/hero.png",
    "docs/rs331xf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T05:02:19.588Z"
}