BM3402

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  "type": "component",
  "slug": "bm3402",
  "title": "BM3402",
  "brief": "BORN MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "BM3402",
    "manufacturer": "BORN",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "MOSFETs",
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      "lbr": "bm3402.lbr"
    },
    "distributor_links": {
      "lcsc": "C431498"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T15:02:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "G",
        "type": "input",
        "description": "Gate; 3.3V logic-level drive with VGS(TH) 0.5 to 1.2 V and absolute maximum VGS of ±16 V."
      },
      {
        "number": "2",
        "name": "S",
        "type": "passive",
        "description": "Source of the N-channel MOSFET; body diode continuous source current is 1.8 A max."
      },
      {
        "number": "3",
        "name": "D",
        "type": "passive",
        "description": "Drain; V(BR)DSS is 30 V minimum and continuous drain current is 5.1 A at TA=25°C."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The package drawing and page 1 photo label the leads only as G, S (two leads on one side) and D (sin",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.2366,
        "at": "2026-10-09T14:59:54"
      },
      "datasheet": {
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        "pages": 4,
        "sha256": "0b80ffffeaa2fad2",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "seat": "z = 0",
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          3,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "BORN",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0b80ffffeaa2fad2",
      "rows": [
        {
          "name": "Gate-Source Voltage",
          "symbol": "VGS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -16,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Storage Temperature Range",
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          "unit": "°C",
          "min": -50,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Pulse Drain Current",
          "symbol": "IDM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 20.4,
          "conditions": "TA=25°C; pulse tested, see note ① (pulse width limited by Tj max)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Continuous Drain Current",
          "symbol": "ID",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 5.1,
          "conditions": "TA=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Continuous Drain Current",
          "symbol": "ID",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "TA=70°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "TA=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "TA=70°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source Breakdown Voltage",
          "symbol": "V(BR)DSS",
          "kind": "electrical",
          "unit": "V",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "VGS=0V ID=250μA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zero Gate Voltage Drain Current (TA=25°C)",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VDS=30V, VGS=0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zero Gate Voltage Drain Current (TA=125°C)",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VDS=24V, VGS=0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-Body Leakage Current",
          "symbol": "IGSS",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "VGS=±16V, VDS=0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate Threshold Voltage",
          "symbol": "VGS(TH)",
          "kind": "electrical",
          "unit": "V",
          "min": 0.5,
          "typ": 0.8,
          "max": 1.2,
          "conditions": "VDS=VGS, ID=250μA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source On-State Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 28,
          "max": 36,
          "conditions": "VGS=10V, ID=4A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source On-State Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 34,
          "max": 50,
          "conditions": "VGS=4.5V, ID=3A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source On-State Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 40,
          "max": 60,
          "conditions": "VGS=3.3V, ID=2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source On-State Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 55,
          "max": 80,
          "conditions": "VGS=2.5V, ID=1A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Source Drain Current (Body Diode)",
          "symbol": "IS",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1.8,
          "conditions": "TA=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Forward On Voltage",
          "symbol": "VSD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.85,
          "max": 1.2,
          "conditions": "Tj=25℃, ISD=4A, VGS=0V",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "BM3402 (BORN) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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