main
Ray Set visibility: public ee8b033 23d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "bt151d-800",
  "title": "BT151D-800",
  "brief": "YFW Thyristors (SCR)/Modules, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "mpn": "BT151D-800",
    "manufacturer": "YFW",
    "package": "TO-252",
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    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393352926703616",
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      "lbr": "bt151d-800.lbr"
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    "distributor_links": {
      "lcsc": "C22459211"
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    "distributor_check": {
      "checked_at": "2026-10-19T02:03:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode (K) of the SCR, the return terminal for the up-to-12 A RMS on-state current (IT(RMS) 12 A)."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode (A2 in the circuit diagram) of the SCR, which blocks repetitive off-state and reverse voltages of 600/800 V (VDRM/VRRM)."
      },
      {
        "number": "3",
        "name": "G",
        "type": "input",
        "description": "Gate trigger input of the SCR, with gate trigger current IGT max 10 mA and gate trigger voltage VGT max 1.3 V (VD=12 V, RL=140 Ω), and peak gate current IGM 4 A."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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 has no pin-by-pin table for TO-252. Pin numbers and names come from the 'Circuit diagr; The datasheet does not state whether the TO-252 tab is electrically connected to the anode (A2) or t"
        ],
        "pages_sent": 4,
        "cost_usd": 0.029,
        "at": "2026-10-19T02:01:22"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393352926703616",
        "pages": 4,
        "sha256": "f908cc627b726b0c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "up": "Z",
        "units": "mm",
        "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": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "bt151d-800-etched.step",
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        "sha256": "c1232531c6cd597785f9fe1ab224115ff4388de720d93b5fc44dc517335c339f",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "YFW",
      "Package": "TO-252",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f908cc627b726b0c1e9677d7a4b387345fee9b06b6dc4e7050ce81a708f5206f",
      "rows": [
        {
          "name": "Repetitive peak off-state voltage",
          "symbol": "VDRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak reverse voltage",
          "symbol": "VRRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "RMS on-state current",
          "symbol": "IT(RMS)",
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          "unit": "A",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Non repetitive surge peak on-state current (full cycle, F=50Hz)",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 95,
          "conditions": "full cycle, F=50Hz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "I2t value for fusing",
          "symbol": "I2t",
          "kind": "absolute_maximum",
          "unit": "A2s",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "tp=10ms",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of rise of on-state current",
          "symbol": "dIT/dt",
          "kind": "absolute_maximum",
          "unit": "A/μs",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "IG=2×IGT",
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        },
        {
          "name": "Peak gate current",
          "symbol": "IGM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Average gate power dissipation",
          "symbol": "PG(AV)",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger current",
          "symbol": "IGT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VD=12V RL=140Ω",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger voltage",
          "symbol": "VGT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.3,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate non-trigger voltage",
          "symbol": "VGD",
          "kind": "electrical",
          "unit": "V",
          "min": 0.2,
          "typ": null,
          "max": null,
          "conditions": "VD=VDRM Tj=125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Latching current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "IG=1.2IGT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Holding current",
          "symbol": "IH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "IT=50mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical-rate of rise of commutation voltage",
          "symbol": "dVD/dt",
          "kind": "electrical",
          "unit": "V/μs",
          "min": 200,
          "typ": null,
          "max": null,
          "conditions": "VD=2/3VDRM Gate Open Tj=125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Forward on voltage",
          "symbol": "VTM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.55,
          "conditions": "ITM=16A tp=380μs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak off-state current",
          "symbol": "IDRM",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VD=VDRM VR=VRRM Tj=25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak reverse current",
          "symbol": "IRRM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Tj=125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case",
          "symbol": "Rth(j-c)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 1.3,
          "max": null,
          "conditions": "Junction to case",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "Rth(j-a)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "Junction to ambient",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "BT151D-800 (YFW) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
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}