SDH8303

{
  "slug": "sdh8303",
  "version": "0.1.0",
  "type": "component",
  "description": "Hangzhou Silan Microelectronics AC-DC Controllers And Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "power management (pmic)",
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    "factory-2.0.0",
    "extractor-text"
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    "sdh8303.lbr",
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    "viewers/symbol.html",
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  "component": {
    "mpn": "SDH8303",
    "manufacturer": "Hangzhou Silan Microelectronics",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588889781472268288",
    "parts": {
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      "lbr": "sdh8303.lbr"
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    "distributor_links": {
      "lcsc": "C161191"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:01:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SOURCE",
        "type": "power_in",
        "description": "Source of the internal power MOSFET and the reference ground for the control circuit; the datasheet gives no separate voltage limit for this pin."
      },
      {
        "number": "2",
        "name": "SOURCE",
        "type": "power_in",
        "description": "Source of the internal power MOSFET and the reference ground for the control circuit (pin 2 is internally tied to pin 1 in the package), with no separate voltage limit stated."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input: the FB current sets the light-load burst mode (shutdown at 0.85 mA, restart after a 70 µA drop), frequency foldback between 625 µA and 695 µA, and overload/short-circuit detection below 450 µA; absolute maximum feedback current is 3 mA."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin for the control circuit: operating range 10 V to 25 V after start-up, start-up at 14.3 V, undervoltage lockout at 8.9 V, overvoltage protection at 28 V, clamp at 30 V, and absolute maximum VDD of 30 V."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; the datasheet specifies this pin as floating (悬空)."
      },
      {
        "number": "6",
        "name": "DRAIN",
        "type": "passive",
        "description": "Drain of the internal high-voltage power MOSFET and high-voltage start-up input; drain-source breakdown is 650 V minimum, continuous drain current 1 A at Tamb = 25 °C, and pulsed drain current 6 A."
      },
      {
        "number": "7",
        "name": "DRAIN",
        "type": "passive",
        "description": "Drain of the internal high-voltage power MOSFET and high-voltage start-up input; drain-source breakdown is 650 V minimum, continuous drain current 1 A at Tamb = 25 °C, and pulsed drain current 6 A."
      },
      {
        "number": "8",
        "name": "DRAIN",
        "type": "passive",
        "description": "Drain of the internal high-voltage power MOSFET and high-voltage start-up input; drain-source breakdown is 650 V minimum, continuous drain current 1 A at Tamb = 25 °C, and pulsed drain current 6 A."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        ],
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        "at": "2026-10-19T05:00:17"
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      "pins": {
        "total": 8,
        "described": 8,
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}