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Ray Set visibility: public 20696ea 2d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "bt138",
  "title": "BT138",
  "brief": "JUXING 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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  "component": {
    "mpn": "BT138",
    "manufacturer": "JUXING",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8b417809b8556614f6463515f5030fe8.pdf",
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      "lbr": "bt138.lbr"
    },
    "distributor_links": {
      "lcsc": "C22440666"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T05:12:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "T1",
        "type": "passive",
        "description": "Main terminal T1 of the triac (diagram shows T1 opposite T2); rated 10 A RMS on-state current, 600 V/800 V VDRM/VRRM."
      },
      {
        "number": "2",
        "name": "T2",
        "type": "passive",
        "description": "Main terminal T2 of the triac, brought out as the centre lead and the mounting tab; rated 10 A RMS on-state current, 600 V/800 V VDRM/VRRM."
      },
      {
        "number": "3",
        "name": "G",
        "type": "input",
        "description": "Gate trigger input; IGT max 50 mA in quadrants I, II and III and 100 mA in quadrant IV (VD=12 V, RL=100 Ω), VGT max 1.5 V, peak gate current 4 A."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 pin table on page 1 (PIN1:T1, PIN2:T2, PIN3:G) matches the package drawing. The tab is labelled ; The datasheet does not say which quadrant the Ⅳ rows apply to (the IGT Ⅳ value is 100 mA). The pin d",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.1363,
        "at": "2026-11-05T05:11:54"
      },
      "datasheet": {
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        "pages": 3,
        "sha256": "81e439d655907bef",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
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        "role": "plain",
        "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": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "sha256": "ebe4bb1f546a6b08d6db71da9d0a6925e9fb4beccc762c2528da3a32259e90ca",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "JUXING",
      "Package": "TO-252",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "81e439d655907bef3751b2a75b266d670eb86a24c24760bc52558201b84182f7",
      "rows": [
        {
          "name": "Repetitive peak off-state voltage (600E variant)",
          "symbol": "VDRM/VRRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 600,
          "conditions": "600E column",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak off-state voltage (800E variant)",
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          "kind": "absolute_maximum",
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          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "800E column",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "RMS on-state current",
          "symbol": "IT(RMS)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "full sine wave",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Non repetitive surge peak on-state current",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "full sine wave, Tj=25℃, t=20ms",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak gate current",
          "symbol": "IGM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "I2t for fusing",
          "symbol": "I2t",
          "kind": "absolute_maximum",
          "unit": "A2S",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "t=10ms",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Average gate power dissipation",
          "symbol": "PG(AV)",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "Tj=125℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak on-state voltage drop",
          "symbol": "VTM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "ITM=12A",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Repetitive rate of rise of on-state current after triggering",
          "symbol": "dit/dt",
          "kind": "absolute_maximum",
          "unit": "A/µs",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "after triggering",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger current (quadrants I, II, III)",
          "symbol": "IGT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VD=12V;RL=100Ω; quadrants Ⅰ Ⅱ Ⅲ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger current (quadrant IV)",
          "symbol": "IGT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VD=12V;RL=100Ω; quadrant Ⅳ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger voltage (quadrants I, II, III)",
          "symbol": "VGT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "VD=12V;RL=100Ω; quadrants Ⅰ Ⅱ Ⅲ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Non-triggering gate voltage",
          "symbol": "VGD",
          "kind": "electrical",
          "unit": "V",
          "min": 0.2,
          "typ": null,
          "max": null,
          "conditions": "Tj=125℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Holding current",
          "symbol": "IH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "IT=0.5A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thyristor holds up current (quadrants I, II, III)",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "IG=1.2IGT; quadrants Ⅰ Ⅱ Ⅲ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thyristor holds up current (quadrant IV)",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "IG=1.2IGT; quadrant Ⅳ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rise rate of off-state voltage",
          "symbol": "dV/dt",
          "kind": "electrical",
          "unit": "V/µs",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "VD=67%VDRM(max); Tj=125℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "On state threshold voltage",
          "symbol": "VTO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.92,
          "max": null,
          "conditions": "Tj=125℃",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "bt138"
  ],
  "discovery_pitch": "BT138 (JUXING) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "bt138-etched.glb"
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}