main
Ray Set visibility: public 6c7aeae 6h ago
{
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  "type": "component",
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  "title": "3DD4251T",
  "brief": "Jilin Sino-Microelectronics Bipolar Transistors - BJT, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "subcategory": "Bipolar Transistors - BJT",
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    "distributor_links": {
      "lcsc": "C3020069"
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    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
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        "name": "B",
        "type": "input",
        "description": "Base of the NPN transistor; VEBO max 9 V, with V(BR)EBO min 9 V at IE=1 mA."
      },
      {
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      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
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      "factory_chain": {
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        "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 hint TO-92-3 most likely maps to the plain TO-92 package (order codes 3DD4251T-T-*). The; The datasheet gives no pin electrical types, so passive was chosen for the collector and emitter and",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "at": "2026-10-22T21:00:02"
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        "sha256": "5531d6e6cac3b91e",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "units": "mm",
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        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-22",
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    "specs": {
      "Manufacturer": "Jilin Sino-Microelectronics",
      "Package": "TO-92-3",
      "Category": "Triode/MOS Tube/Transistor",
      "Pins": "3"
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        },
        {
          "name": "Collector Current (pulse)",
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        {
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        {
          "name": "Collector-Emitter Saturation Voltage",
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          "conditions": "IC=0.1A, IB=10mA",
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        },
        {
          "name": "Base-Emitter Saturation Voltage",
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          "name": "Storage Time",
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  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "3DD4251T (Jilin Sino-Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}