FKBA4903

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  "type": "component",
  "slug": "fkba4903",
  "title": "FKBA4903",
  "brief": "SINO IC MOSFETs, DFN-8(5x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "transistors-thyristors",
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  "component": {
    "mpn": "FKBA4903",
    "manufacturer": "SINO IC",
    "package": "DFN-8(5x6)",
    "pin_count": 9,
    "category": "Transistors/Thyristors",
    "subcategory": "MOSFETs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588916801829023744",
    "parts": {
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    "distributor_links": {
      "lcsc": "C730093"
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    "distributor_check": {
      "checked_at": "2026-10-17T20:06:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "S1",
        "type": "passive",
        "description": "Source of MOSFET 1; the datasheet gives VDS of 40V (N-channel) or -40V (P-channel) and VGS of ±20V."
      },
      {
        "number": "2",
        "name": "G1",
        "type": "input",
        "description": "Gate of MOSFET 1; gate-source voltage is rated ±20V and the device is ESD protected."
      },
      {
        "number": "3",
        "name": "S2",
        "type": "passive",
        "description": "Source of MOSFET 2; the datasheet gives VDS of 40V (N-channel) or -40V (P-channel) and VGS of ±20V."
      },
      {
        "number": "4",
        "name": "G2",
        "type": "input",
        "description": "Gate of MOSFET 2; gate-source voltage is rated ±20V and the device is ESD protected."
      },
      {
        "number": "5",
        "name": "D2",
        "type": "passive",
        "description": "Drain of MOSFET 2, tied to pin 6 and the D2 exposed pad; drain-source voltage is rated 40V (N-channel) or -40V (P-channel)."
      },
      {
        "number": "6",
        "name": "D2",
        "type": "passive",
        "description": "Drain of MOSFET 2, tied to pin 5 and the D2 exposed pad; drain-source voltage is rated 40V (N-channel) or -40V (P-channel)."
      },
      {
        "number": "7",
        "name": "D1",
        "type": "passive",
        "description": "Drain of MOSFET 1, tied to pin 8 and the D1 exposed pad; drain-source voltage is rated 40V (N-channel) or -40V (P-channel)."
      },
      {
        "number": "8",
        "name": "D1",
        "type": "passive",
        "description": "Drain of MOSFET 1, tied to pin 7 and the D1 exposed pad; drain-source voltage is rated 40V (N-channel) or -40V (P-channel)."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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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 pin diagram on page 1 shows two MOSFETs (1 and 2) but never says which is the N-channel and whic; The package drawing on page 8 shows two separate exposed drain pads (D1 and D2). The datasheet does ",
          "exposed pad 9 added from the footprint",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.2497,
        "at": "2026-10-17T20:04:01"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 9,
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        "refuses_to_fabricate": true
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        "sha256": "13e5a2a05f78c2a0952534b2fb187d0be154d366a431374e398c7e2032779f1b",
        "checked": "2026-10-17",
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  "metadata": {
    "specs": {
      "Manufacturer": "SINO IC",
      "Package": "DFN-8(5x6)",
      "Category": "Transistors/Thyristors",
      "Pins": "9"
    },
    "characteristics": {
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          "name": "N-Channel Drain to Source Leakage Current",
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        {
          "name": "N-Channel Forward Transconductance",
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          "kind": "electrical",
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          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "VDS=5V, ID=12A",
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        {
          "name": "N-Channel Input Capacitance",
          "symbol": "Ciss",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 593,
          "max": null,
          "conditions": "VGS=0V, VDS=15V, f=1MHz",
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          "min": null,
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        {
          "name": "N-Channel Reverse Transfer Capacitance",
          "symbol": "Crss",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 56,
          "max": null,
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          "source_page": 2,
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        {
          "name": "N-Channel Total Gate Charge",
          "symbol": "Qg",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 5.5,
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          "name": "N-Channel Gate Source Charge",
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          "kind": "electrical",
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          "min": null,
          "typ": 1.25,
          "max": null,
          "conditions": "",
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        {
          "name": "N-Channel Gate Drain Charge",
          "symbol": "Qgd",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 2.5,
          "max": null,
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        {
          "name": "N-Channel Turn-On Delay Time",
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          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 8.9,
          "max": null,
          "conditions": "VDD=20V, RGEN=3.3Ω, ID=1A",
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          "name": "N-Channel Turn-On Rise Time",
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          "name": "N-Channel Turn-Off Fall Time",
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          "max": null,
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        {
          "name": "N-Channel Drain-Source Diode Forward Voltage",
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          "min": null,
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          "max": null,
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          "min": null,
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          "max": null,
          "conditions": "ID=-250μA, VGS=0V",
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          "name": "P-Channel Drain to Source Leakage Current",
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          "kind": "electrical",
          "unit": "μA",
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          "max": null,
          "conditions": "VDS=-32V, VGS=0V",
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          "name": "P-Channel Gate-Body Leakage Current",
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          "name": "P-Channel Forward Transconductance",
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          "kind": "electrical",
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          "min": null,
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          "max": null,
          "conditions": "VDS=-5V, ID=-8A",
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          "kind": "electrical",
          "unit": "pF",
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          "max": null,
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          "name": "P-Channel Output Capacitance",
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          "name": "P-Channel Reverse Transfer Capacitance",
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          "kind": "electrical",
          "unit": "pF",
          "min": null,
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          "max": null,
          "conditions": "",
          "source_page": 3,
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          "name": "P-Channel Total Gate Charge",
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          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 9,
          "max": null,
          "conditions": "VGS=-4.5V, VDS=-20V, ID=-12A",
          "source_page": 3,
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          "name": "P-Channel Gate Source Charge",
          "symbol": "Qgs",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 2.54,
          "max": null,
          "conditions": "",
          "source_page": 3,
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          "name": "P-Channel Gate Drain Charge",
          "symbol": "Qgd",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 3.1,
          "max": null,
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          "name": "P-Channel Turn-On Delay Time",
          "symbol": "td(on)",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 19.2,
          "max": null,
          "conditions": "VGS=-10V, VDS=-15V, RGEN=3.3Ω, ID=-1A",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "P-Channel Turn-Off Delay Time",
          "symbol": "td(off)",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 48.6,
          "max": null,
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        {
          "name": "P-Channel Turn-On Rise Time",
          "symbol": "td(r)",
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          "min": null,
          "typ": 12.8,
          "max": null,
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        {
          "name": "P-Channel Turn-Off Fall Time",
          "symbol": "td(f)",
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          "min": null,
          "typ": 4.6,
          "max": null,
          "conditions": "",
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          "name": "P-Channel Drain-Source Diode Forward Voltage",
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          "unit": "V",
          "min": null,
          "typ": -1,
          "max": null,
          "conditions": "VGS=0V,IS=-1A",
          "source_page": 3,
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          "name": "P-Channel Continuous Source Current",
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          "min": null,
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          "conditions": "VG=VD=0V",
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          "name": "P-Channel Pulsed Source Current",
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