main
Ray Set visibility: public 5588012 9d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mmbd4148dw",
  "title": "MMBD4148DW",
  "brief": "ST Semtech Switching Diodes, SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "mpn": "MMBD4148DW",
    "manufacturer": "ST Semtech",
    "package": "SOT-363",
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    "category": "Diodes",
    "subcategory": "Switching Diodes",
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      "lbr": "mmbd4148dw.lbr"
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    "distributor_links": {
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      "checked_at": "2026-10-18T09:30:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
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        "name": "Anode",
        "type": "passive",
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      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal, listed as pin 2 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA."
      },
      {
        "number": "3",
        "name": "Anode",
        "type": "passive",
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      },
      {
        "number": "4",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal, listed as pin 4 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA."
      },
      {
        "number": "5",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal, listed as pin 5 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA."
      },
      {
        "number": "6",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal, listed as pin 6 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA."
      }
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      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pin assignment lists three anodes (pins 1-3) and three cathodes (pins 4-6), and the dr; The datasheet gives no per-pin electrical limits; the limits quoted in the descriptions are device-l"
        ],
        "pages_sent": 3,
        "cost_usd": 0.0159,
        "at": "2026-10-18T09:29:02"
      },
      "datasheet": {
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        "pages": 3,
        "sha256": "2c287c95df0c6f43",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "origin": "footprint origin = pad-pattern centre",
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8f649403568e2f520c868c7d518be5c2fbb1196fc69fc71700003eee40d58ccb",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "ST Semtech",
      "Package": "SOT-363",
      "Category": "Diodes",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2c287c95df0c6f4313034189c345bc93aaf4f6302ec3e14d221cedcc6f893728",
      "rows": [
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
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          "max": 100,
          "conditions": "",
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        },
        {
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          "unit": "V",
          "min": null,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Average Rectified Forward Current",
          "symbol": "IF(AV)",
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          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Forward Continuous Current",
          "symbol": "IFM",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
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          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Non-Repetitive Peak Forward Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "t = 1 µs",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Non-Repetitive Peak Forward Current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "t = 1 s",
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        },
        {
          "name": "Power Dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Thermal Resistance, Junction to Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 625,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and Storage Temperature Range",
          "symbol": "Tj, Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
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          "conditions": "",
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        {
          "name": "Reverse Breakdown Voltage",
          "symbol": "V(BR)R",
          "kind": "electrical",
          "unit": "V",
          "min": 75,
          "typ": null,
          "max": null,
          "conditions": "IR = 100 μA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Forward Voltage",
          "symbol": "VF",
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          "min": null,
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          "max": 0.715,
          "conditions": "IF = 1 mA",
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        },
        {
          "name": "Forward Voltage",
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          "kind": "electrical",
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          "min": null,
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          "max": 0.855,
          "conditions": "IF = 10 mA",
          "source_page": 1,
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        },
        {
          "name": "Forward Voltage",
          "symbol": "VF",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "IF = 50 mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Forward Voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
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          "max": 1.25,
          "conditions": "IF = 150 mA",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Peak Reverse Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "VR = 20 V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Reverse Current",
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          "kind": "electrical",
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          "min": null,
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          "max": 1,
          "conditions": "VR = 75 V",
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        },
        {
          "name": "Peak Reverse Current",
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          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "VR = 25 V, Tj = 150℃",
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          "source": "datasheet"
        },
        {
          "name": "Peak Reverse Current",
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          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VR = 75 V, Tj = 150℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Total Capacitance",
          "symbol": "CT",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "VR = 0 V, f = 1 MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Reverse Recovery Time",
          "symbol": "trr",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "IF = 10 mA, Irr = 0.1 X IR, RL = 100 Ω, VR = 6 V",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "MMBD4148DW (ST Semtech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}