UA741CDT

{
  "schema_version": 1,
  "type": "component",
  "slug": "ua741cdt",
  "title": "UA741CDT",
  "brief": "STMicroelectronics Operational Amplifier, SO-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "op-amp-cmp",
    "ua741cdt"
  ],
  "component": {
    "mpn": "UA741CDT",
    "manufacturer": "STMicroelectronics",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Op-amp/Cmp",
    "subcategory": "Operational Amplifier",
    "datasheet": "https://www.st.com/resource/en/datasheet/ua741cdt.pdf",
    "parts": {
      "symbol": "ua741cdt.kicad_sym",
      "footprint": "ua741cdt.kicad_mod",
      "model_3d": "ua741cdt-etched.glb",
      "model_3d_plain": "ua741cdt.glb",
      "model_3d_step": "ua741cdt-etched.step",
      "model_3d_step_plain": "ua741cdt.step",
      "lbr": "ua741cdt.lbr"
    },
    "distributor_links": {
      "lcsc": "C7111"
    },
    "pins": [
      {
        "number": "1",
        "name": "OFFSET_NULL1",
        "type": "input",
        "description": "Offset null 1. Connect an external trim potentiometer between OFFSET_NULL1 (pin 1) and OFFSET_NULL2 (pin 5) with the wiper tied to VCC- to trim input offset voltage (typ 1 mV, max 5 mV at 25 °C)."
      },
      {
        "number": "2",
        "name": "IN-",
        "type": "input",
        "description": "Inverting input of the op-amp. High-impedance analog input (Ri typ 2 MΩ, min 0.3 MΩ). Common-mode input range ±12 V at VCC = ±15 V."
      },
      {
        "number": "3",
        "name": "IN+",
        "type": "input",
        "description": "Non-inverting input of the op-amp. High-impedance analog input (Ri typ 2 MΩ, min 0.3 MΩ). Common-mode input range ±12 V at VCC = ±15 V."
      },
      {
        "number": "4",
        "name": "VCC-",
        "type": "power_in",
        "description": "Negative supply rail. Typical dual-supply operation ±15 V; absolute maximum ±22 V. Total supply range 5 to 40 V."
      },
      {
        "number": "5",
        "name": "OFFSET_NULL2",
        "type": "input",
        "description": "Offset null 2. Second terminal of the external offset-trim potentiometer (paired with OFFSET_NULL1 on pin 1, wiper to VCC-)."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Op-amp output. Class-AB output stage with internal short-circuit protection; output swing ±14 V typical at RL = 10 kΩ and VCC = ±15 V; short-circuit current typ 25 mA."
      },
      {
        "number": "7",
        "name": "VCC+",
        "type": "power_in",
        "description": "Positive supply rail. Typical dual-supply operation ±15 V; absolute maximum ±22 V. Total supply range 5 to 40 V; supply current typ 1.7 mA."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie to any convenient net."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/ua741cdt.pdf",
        "pages": 11,
        "sha256": "a9a423732c10edcf",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ua741cdt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ua741cdt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5c60d75ba25be645e4f8deca91bf24580e528215a7b2c8e2efa6be42ff2af387",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SO-8",
      "Category": "Op-amp/Cmp",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ua741cdt"
  ],
  "discovery_pitch": "UA741CDT (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ua741cdt.kicad_sym",
    "ua741cdt.kicad_mod",
    "ua741cdt.glb",
    "ua741cdt.step",
    "ua741cdt-etched.step",
    "ua741cdt.lbr",
    "docs/hero.png",
    "docs/ua741cdt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "UA741CDTD",
      "kind": "packaging"
    },
    {
      "mpn": "UA741CDT",
      "kind": "packaging"
    },
    {
      "mpn": "UA741CDTN",
      "kind": "packaging"
    },
    {
      "mpn": "UA741CDTCN",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T13:24:48.393Z"
}