CJ432

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  "slug": "cj432",
  "title": "CJ432",
  "brief": "Changjing Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
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  "component": {
    "mpn": "CJ432",
    "manufacturer": "Changjing",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2111241030_Jiangsu-Changjing-Electronics-Technology-Co---Ltd--CJ432_C2910208.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "REF",
        "type": "input",
        "description": "Reference input pin. Voltage on this pin (1.2214-1.2586V, typ 1.24V) is compared internally against the bandgap reference; regulates the shunt when Vref threshold is exceeded. Reference input current is on the order of hundreds of nA (max 6μA over range)."
      },
      {
        "number": "2",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode (K) of the shunt regulator. Sinks current from the load when Vref exceeds the internal bandgap. Max continuous cathode current 100mA, max cathode voltage 18V, dynamic impedance 0.5Ω typ."
      },
      {
        "number": "3",
        "name": "ANODE",
        "type": "passive",
        "description": "Anode (A) of the shunt regulator. Normally tied to circuit ground / low-side return; forms the current return path for the shunt element."
      }
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      "source": "silk-marker",
      "derived_from": "SOT-23@sha256:0d88c86c1b6d8c1a",
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  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
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        {
          "name": "Reference input voltage",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2214,
          "typ": null,
          "max": 1.2586,
          "conditions": "VKA=VREF, IKA=10mA (Fig 1)",
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        },
        {
          "name": "Deviation of reference voltage over full temperature range",
          "symbol": "△Vref(DEV)",
          "kind": "electrical",
          "unit": "mV",
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          "max": 16,
          "conditions": "VKA=VREF, IKA=10mA, 0℃≤Ta≤70℃ (Fig 1)",
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        {
          "name": "Ratio of change in reference input voltage to change in cathode voltage",
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          "unit": "μA",
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          "max": 0.6,
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          "typ": null,
          "max": 0.5,
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        {
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          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.5,
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          "max": 18,
          "conditions": "",
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        {
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          "name": "Thermal Resistance from Junction to Ambient",
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          "unit": "℃/W",
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          "typ": null,
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        {
          "name": "Operating Junction Temperature Range",
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          "name": "Storage Temperature Range",
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          "conditions": "",
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  "updated_at": "2026-09-24T19:06:02.088Z"
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