DRDNB21D-7

{
  "schema_version": 1,
  "type": "component",
  "slug": "drdnb21d-7",
  "title": "DRDNB21D-7",
  "brief": "Diodes Incorporated AC-DC Controllers and Regulators, SOT-363. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "drdnb21d-7"
  ],
  "component": {
    "mpn": "DRDNB21D-7",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-363",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "AC-DC Controllers and Regulators",
    "datasheet": "https://www.diodes.com/assets/Datasheets/DRDNB21D-7.pdf",
    "parts": {
      "symbol": "drdnb21d-7.kicad_sym",
      "footprint": "drdnb21d-7.kicad_mod",
      "model_3d": "drdnb21d-7-etched.glb",
      "model_3d_plain": "drdnb21d-7.glb",
      "model_3d_step": "drdnb21d-7-etched.step",
      "model_3d_step_plain": "drdnb21d-7.step",
      "lbr": "drdnb21d-7.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "IN1",
        "type": "input",
        "description": "Input to Q1 pre-biased NPN transistor (base through R1=2.2kΩ). Drives channel 1. Vin range -5 to +12V; input current typ 3.6mA at VI=5V; VI(on) max 1.1V for VO=0.3V, IO=5mA."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common emitter of Q1 and Q2 (ground return for both channels)."
      },
      {
        "number": "3",
        "name": "IN2",
        "type": "input",
        "description": "Input to Q2 pre-biased NPN transistor (base through R3=2.2kΩ). Drives channel 2. Vin range -5 to +12V; input current typ 3.6mA at VI=5V."
      },
      {
        "number": "4",
        "name": "OUT2",
        "type": "output",
        "description": "Open-collector output of Q2 with D2 anode connected internally. Connect to one side of relay coil 2 (return through VCC). VCEmax 50V; IO max 100mA; VO(on) max 0.3V at IO/IL=50mA/0.25mA."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Common cathode of D1 and D2 flyback diodes. Connect to relay supply (VCC) so diodes clamp inductive kickback from both relay coils. Diode VRM 100V, IO 250mA."
      },
      {
        "number": "6",
        "name": "OUT1",
        "type": "output",
        "description": "Open-collector output of Q1 with D1 anode connected internally. Connect to one side of relay coil 1 (return through VCC). VCEmax 50V; IO max 100mA; VO(on) max 0.3V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/DRDNB21D-7.pdf",
        "pages": 8,
        "sha256": "a9aafd34a8b09b0c",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "drdnb21d-7.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drdnb21d-7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "fb131dd86ebfe530e95515e447a2bb7735a519dc07cba3d5578ff02967f5cf23",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-363",
      "Category": "PMIC",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "drdnb21d-7"
  ],
  "discovery_pitch": "DRDNB21D-7 (Diodes Incorporated) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "drdnb21d-7.kicad_sym",
    "drdnb21d-7.kicad_mod",
    "drdnb21d-7.glb",
    "drdnb21d-7.step",
    "drdnb21d-7-etched.step",
    "drdnb21d-7.lbr",
    "docs/hero.png",
    "docs/drdnb21d-7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "DRDNB21D-7",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T19:54:13.334Z"
}