BSR33TA

{
  "schema_version": 1,
  "type": "component",
  "slug": "bsr33ta",
  "title": "BSR33TA",
  "brief": "Diodes Incorporated Bipolar (BJT), SOT-89. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "transistors-thyristors",
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  "component": {
    "mpn": "BSR33TA",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
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    "parts": {
      "symbol": "bsr33ta.kicad_sym",
      "footprint": "bsr33ta.kicad_mod",
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      "lbr": "bsr33ta.lbr"
    },
    "distributor_links": {
      "lcsc": "C129775"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T22:56:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
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      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base of the PNP transistor; the datasheet shows it as the bottom pin in the top-view pin-out and gives VEBO of -5V and a peak base current IBM of -200mA."
      },
      {
        "number": "2",
        "name": "C",
        "type": "passive",
        "description": "Collector of the PNP transistor, the middle pin, which is also connected to the exposed collector tab; the datasheet gives VCEO of -80V, VCBO of -90V, continuous IC of -1A and peak ICM of -2A."
      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the PNP transistor; the datasheet shows it as the top pin in the top-view pin-out."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
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        "pages": 7,
        "sha256": "28fcff903fd6f969",
        "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": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-21",
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  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-89",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": " Terminals: Matte Tin Finish, Solderable per MIL-STD-202, Method 208",
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        "plating": "tin"
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          "conditions": "@TA = +25°C",
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          "name": "Collector-Emitter Voltage",
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        {
          "name": "Continuous Collector Current",
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        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
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          "conditions": "Note 6: 15mm x 15mm 1oz copper, single-sided 1.6mm FR4, still air",
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          "symbol": "RΘJL",
          "kind": "thermal",
          "unit": "°C/W",
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          "typ": null,
          "max": 13,
          "conditions": "Note 9: junction to solder point on exposed collector pad",
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          "conditions": "",
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          "conditions": "JEDEC Class 3A (Note 10)",
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          "kind": "electrical",
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          "conditions": "IC = -100μA",
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        {
          "name": "Collector-Emitter Breakdown Voltage",
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          "name": "DC current transfer static ratio",
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          "name": "DC current transfer static ratio",
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          "name": "Collector-Emitter Saturation Voltage",
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          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": -0.25,
          "conditions": "IC = -150mA, IB = -15mA (Note 11)",
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        {
          "name": "Base-Emitter Saturation Voltage",
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          "name": "Transitional Frequency",
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          "unit": "MHz",
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          "typ": null,
          "max": null,
          "conditions": "IC = -50mA, VCE = -10V, f = 35MHz",
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        {
          "name": "Output capacitance",
          "symbol": "Cobo",
          "kind": "electrical",
          "unit": "pF",
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          "name": "Turn-On Time",
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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