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Ray Set visibility: public dcfb2f0 2d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "1sma5925bt3g",
  "title": "1SMA5925BT3G",
  "brief": "onsemi Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "1SMA5925BT3G",
    "manufacturer": "onsemi",
    "package": "SMA",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/1sma5925bt3-d.pdf",
    "parts": {
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      "lbr": "1sma5925bt3g.lbr"
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    "distributor_links": {
      "lcsc": "C50840",
      "digikey": "1SMA5925BT3GOSTR-ND",
      "mouser": "863-1SMA5925BT3G"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T07:39:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1SMA5925BT3GOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-1SMA5925BT3G",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode terminal, identified by the molded polarity notch or cathode band on the package; the device is rated for 1.5 W DC power dissipation at TL = 75°C and an operating and storage range of −65 to +150°C."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "Anode terminal, at the end opposite the cathode band; for the 1SMA5925BT3G the nominal Zener voltage is 10 V (9.5 V min, 10.5 V max) at IZT = 37.5 mA."
      }
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    "provenance": {
      "extractor": "extract_pins 0.3",
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        "extractor": "extract_pins 0.3",
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        "consensus_model": "claude-sonnet-5-5",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        ],
        "pages_sent": 5,
        "cost_usd": 0.0343,
        "at": "2026-10-21T07:36:44"
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      "datasheet": {
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        "pages": 5,
        "sha256": "1ca169f64a35c9ee",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "viewers": {
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        "role": "plain",
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        "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": "1cfddd4e3b1bf22b8fc6ee3258c2aade882ed7b85b528e23b9db42437775a1db",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "c0f18e97564ce33a2620c128cf7491f1a0782d4e6860112bba8c9483bb7ae065",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SMA",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1ca169f64a35c9ee149e4d108b66410136a57136b0673fd25a58b1e6c2b09957",
      "rows": [
        {
          "name": "Zener voltage (5% type, 10 V nominal)",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": 9.5,
          "typ": 10,
          "max": 10.5,
          "conditions": "@ IZT = 37.5 mA; TA = 25°C; limits guaranteed at thermal equilibrium (Note 4)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener voltage tolerance (type number designation)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "Type number 1SMA5925BT3G indicates 5% tolerance (Note 3)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Zener impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "ohm",
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          "typ": null,
          "max": 4.5,
          "conditions": "@ IZT = 37.5 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Zener impedance",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "ohm",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "@ IZK = 0.25 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC Zener current",
          "symbol": "IZM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "@ IF = 200 mA; TA = 25°C (stated for all types)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation at TL = 75°C",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "TL = 75°C, measured at zero lead length, 1 in² copper pad, FR-4 (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation at TA = 25°C",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "TA = 25°C, FR-4 board with ON Semiconductor minimum recommended footprint (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction-to-lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "Measured at zero lead length (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction-to-ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "FR-4 board, minimum recommended footprint (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and storage temperature range",
          "symbol": "TJ, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
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  "discovery_pitch": "1SMA5925BT3G (onsemi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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