1N4733A

{
  "schema_version": 1,
  "type": "component",
  "slug": "1n4733a",
  "title": "1N4733A",
  "brief": "Diodes Inc 5.1 V 1 W Zener diode, DO-41. Voltage reference and clamping. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "diode",
    "zener",
    "voltage-reference",
    "do-41",
    "diodes-inc"
  ],
  "component": {
    "mpn": "1N4733A",
    "manufacturer": "Diodes Incorporated",
    "package": "DO-41",
    "pin_count": 2,
    "category": "Diode",
    "subcategory": "Zener diode (1 W)",
    "datasheet": "https://www.diodes.com/assets/Datasheets/ds18004.pdf",
    "parts": {
      "symbol": "1n4733a.kicad_sym",
      "footprint": "1n4733a.kicad_mod",
      "model_3d": "1n4733a.glb",
      "lbr": "1n4733a.lbr",
      "model_3d_step": "1n4733a.step"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode. Marked on the package with a polarity band. In normal Zener operation the cathode is the more positive terminal; reverse breakdown clamps the cathode-anode voltage to VZ (nominally 5.1 V for 1N4733A, or the value listed for the selected BZT52C variant in the datasheet's Electrical Characteristics table)."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode. Return terminal for Zener reverse-bias regulation and forward-bias conduction (VF = 0.9 V at IF = 10 mA per the Maximum Ratings table)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/ds18004.pdf",
        "pages": 5,
        "sha256": "0fbd7d137524820f",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "1n4733a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.96,
          2.72,
          5.71
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c3e23d4b276811b74eecb329bd4480209ad3dbc8cf6e6e3f2a5b542c5ca343c1",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Zener diode",
      "Zener voltage (Vz)": "5.1 V (at 49 mA)",
      "Power rating": "1 W",
      "Tolerance": "±5% (A suffix)",
      "Max Zener current": "~178 mA",
      "Test current": "49 mA",
      "Marking": "band = cathode (pin 1)",
      "Package": "DO-41 (axial THT)"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "1n4733a",
    "5.1v zener",
    "1 watt zener",
    "zener diode",
    "voltage clamp diode"
  ],
  "discovery_pitch": "1N4733A 5.1 V 1 W Zener diode (DO-41) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "1n4733a.kicad_sym",
    "1n4733a.kicad_mod",
    "1n4733a.glb",
    "1n4733a.lbr",
    "docs/hero.png",
    "docs/1n4733a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1n4733a-etched.step"
  ]
}