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Ray ms8311: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body with… e37ab7c 12d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ms8311",
  "title": "MS8311",
  "brief": "Hangzhou Ruimeng Tech Precision OpAmps, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "op-amp-cmp",
    "ms8311"
  ],
  "component": {
    "mpn": "MS8311",
    "manufacturer": "Hangzhou Ruimeng Tech",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Op-amp/Cmp",
    "subcategory": "Precision OpAmps",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f39d0085719c3f1c9b88a1e76e173754.pdf",
    "parts": {
      "symbol": "ms8311.kicad_sym",
      "footprint": "ms8311.kicad_mod",
      "model_3d": "ms8311-etched.glb",
      "model_3d_plain": "ms8311.glb",
      "model_3d_step": "ms8311-etched.step",
      "model_3d_step_plain": "ms8311.step",
      "lbr": "ms8311.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "output",
        "description": "Amplifier output. Rail-to-rail output stage; short-circuit current typ. +/-80 mA at Vs=5 V."
      },
      {
        "number": "2",
        "name": "-Vs",
        "type": "power_in",
        "description": "Negative supply / ground reference (VSS). Tie to GND for single-supply 2.7-5.5 V operation."
      },
      {
        "number": "3",
        "name": "+IN",
        "type": "input",
        "description": "Non-inverting input. Rail-to-rail input range (0 V to Vs); input bias current 1 pA max."
      },
      {
        "number": "4",
        "name": "-IN",
        "type": "input",
        "description": "Inverting input. Rail-to-rail input range (0 V to Vs); input bias current 1 pA max; differential input voltage rating +/-6 V."
      },
      {
        "number": "5",
        "name": "+Vs",
        "type": "power_in",
        "description": "Positive supply (VDD). 2.7 V to 5.5 V single-supply; absolute maximum 6 V. Quiescent current typ. 1.5 mA."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f39d0085719c3f1c9b88a1e76e173754.pdf",
        "pages": 18,
        "sha256": "23d2a5bcc3ad0345",
        "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": "ms8311.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": "ms8311-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": "5fef15fa0f2db8da4e70e7274a18d3610a724c13fe8ccf193f7defb610476d5c",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Hangzhou Ruimeng Tech",
      "Package": "SOT-23-5",
      "Category": "Op-amp/Cmp",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ms8311"
  ],
  "discovery_pitch": "MS8311 (Hangzhou Ruimeng 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",
    "ms8311.kicad_sym",
    "ms8311.kicad_mod",
    "ms8311.glb",
    "ms8311.step",
    "ms8311-etched.step",
    "ms8311.lbr",
    "docs/hero.png",
    "docs/ms8311-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "MS8311",
      "kind": "packaging"
    },
    {
      "mpn": "MS8312",
      "kind": "unknown"
    },
    {
      "mpn": "MS8312M",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-25T02:23:28.635Z"
}