SI8261BCC-C-ISR

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  "slug": "si8261bcc-c-isr",
  "title": "SI8261BCC-C-ISR",
  "brief": "SKYWORKS SILICON LABS Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "SI8261BCC-C-ISR",
    "manufacturer": "SKYWORKS SILICON LABS",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590903250999209984",
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    "distributor_links": {
      "lcsc": "C461854",
      "digikey": "336-4918-2-ND",
      "mouser": "634-SI8261BCC-C-ISR"
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    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; these pins are not internally connected, and should be tied to the ground plane to maximize CMTI performance."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "input",
        "description": "Anode of the LED emulator; VO follows the signal applied to this input with respect to the CATHODE input."
      },
      {
        "number": "3",
        "name": "CATHODE",
        "type": "input",
        "description": "Cathode of the LED emulator; VO follows the signal applied to ANODE with respect to this input."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; this pin is not internally connected, and should be tied to the ground plane to maximize CMTI performance."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "External MOSFET source connection and ground reference for VDD; typically connected to ground but may be tied to a negative or positive voltage."
      },
      {
        "number": "6",
        "name": "VO",
        "type": "output",
        "description": "Output signal; both VO pins (6 and 7) are required to be shorted together for 4.0 A compliance."
      },
      {
        "number": "7",
        "name": "VO",
        "type": "output",
        "description": "Output signal; both VO pins (6 and 7) are required to be shorted together for 4.0 A compliance."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Output-side power supply input referenced to GND, 30 V max (recommended operating supply is 6.5 to 30 V)."
      }
    ],
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          "extractor flagged: The MPN suffix '-ISR' does not appear in the datasheet. The ordering guide (Table 13, page 25) lists; Pin 1 and pin 4 are both listed as NC in Table 11 with the same note; pin 1 and pin 4 descriptions a"
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        "at": "2026-10-20T21:40:11"
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        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "SKYWORKS SILICON LABS",
      "Package": "SOIC-8",
      "Category": "Signal Isolation Devices",
      "Pins": "8"
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          "symbol": "IF(ON)",
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        {
          "name": "Operating Temperature (Ambient)",
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          "name": "Input Current Threshold",
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          "name": "Input Forward Voltage (OFF)",
          "symbol": "VF(OFF)",
          "kind": "electrical",
          "unit": "V",
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          "max": 1,
          "conditions": "Measured at ANODE with respect to CATHODE.",
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          "name": "Input Forward Voltage (ON)",
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        {
          "name": "Output Resistance High (Source)",
          "symbol": "ROH",
          "kind": "electrical",
          "unit": "Ω",
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          "conditions": "Si826xBxx devices (IOH = -1 A)",
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        {
          "name": "Output Resistance Low (Sink)",
          "symbol": "ROL",
          "kind": "electrical",
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          "name": "Output High Current (Source)",
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          "conditions": "Si826xBxx devices (IF = 0), (tPW_IOH < 250 ns), (VDD –VO = 7.5 V)",
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          "name": "Output Low Current (Sink)",
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          "typ": -0.25,
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          "conditions": "Si826xBxx devices (IOUT = –100 mA); printed as VDD–0.5 (min) and VDD–0.25 (typ)",
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          "name": "Low-Level Output Voltage",
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          "name": "UVLO Threshold + (Si826xxCx mode)",
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          "kind": "electrical",
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          "min": 10.5,
          "typ": 12,
          "max": 13.5,
          "conditions": "VDD rising; see Figure 13",
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          "name": "UVLO Threshold – (Si826xxCx mode)",
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          "kind": "electrical",
          "unit": "V",
          "min": 9.4,
          "typ": 10.7,
          "max": 12.2,
          "conditions": "VDD falling; see Figure 13",
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        {
          "name": "Input noise filter cut-off pulse width",
          "symbol": "tNFC",
          "kind": "timing",
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          "name": "Propagation delay (Low-to-High)",
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          "conditions": "CL = 200 pF",
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        {
          "name": "Propagation delay (High-to-Low)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 10,
          "typ": 30,
          "max": 50,
          "conditions": "CL = 200 pF",
          "source_page": 6,
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        {
          "name": "Pulse Width Distortion",
          "symbol": "PWD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 17,
          "max": 28,
          "conditions": "|tPLH –tPHL|",
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        {
          "name": "Propagation Delay Difference",
          "symbol": "PDD",
          "kind": "timing",
          "unit": "ns",
          "min": -1,
          "typ": null,
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          "conditions": "tPHLMAX –tPLHMIN",
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          "name": "Rise time",
          "symbol": "tR",
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          "min": null,
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          "max": 15,
          "conditions": "CL = 200 pF",
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          "name": "Fall time",
          "symbol": "tF",
          "kind": "timing",
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          "min": null,
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          "conditions": "CL = 200 pF",
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        {
          "name": "Device Startup Time",
          "symbol": "tSTART",
          "kind": "timing",
          "unit": "µs",
          "min": null,
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        {
          "name": "Common Mode Transient Immunity",
          "symbol": "CMTI",
          "kind": "electrical",
          "unit": "kV/µs",
          "min": 35,
          "typ": 50,
          "max": null,
          "conditions": "Output = low or high (VCM = 1500 V), (IF > 6 mA) (See Figure 4)",
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        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
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          "name": "Operating Temperature",
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          "min": -40,
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        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
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          "min": null,
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          "name": "Average Forward Input Current",
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          "kind": "absolute_maximum",
          "unit": "mA",
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          "name": "Peak Transient Input Current",
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          "kind": "absolute_maximum",
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          "typ": null,
          "max": 1,
          "conditions": "< 1 µs pulse width, 300 ps",
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          "name": "Reverse Input Voltage",
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          "kind": "absolute_maximum",
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          "max": 0.3,
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          "name": "Supply Voltage (absolute)",
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          "name": "Peak Output Current (4.0 Amp versions)",
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          "max": 4,
          "conditions": "tPW = 10 µs, duty cycle = 0.2%",
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        {
          "name": "Input Power Dissipation",
          "symbol": "PI",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "",
          "source_page": 13,
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        {
          "name": "Output Power Dissipation",
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          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 225,
          "conditions": "",
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          "name": "Total Power Dissipation",
          "symbol": "PT",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "all packages limited by thermal derating curve",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Lead Solder Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 s",
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          "source": "datasheet"
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        {
          "name": "HBM Rating ESD",
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          "kind": "absolute_maximum",
          "unit": "kV",
          "min": 4,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
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        {
          "name": "Machine Model ESD",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": 300,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 13,
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        {
          "name": "CDM ESD",
          "symbol": "CDM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 2000,
          "typ": null,
          "max": null,
          "conditions": "",
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        {
          "name": "Maximum Isolation Voltage (1 s) SOIC-8",
          "symbol": "",
          "kind": "absolute_maximum",
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          "max": 4500,
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        {
          "name": "IC Junction-to-Air Thermal Resistance (SOIC-8)",
          "symbol": "JA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "SOIC-8 column",
          "source_page": 11,
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          "name": "UVLO lockout hysteresis (Si826xxCx mode)",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.3,
          "max": null,
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        {
          "name": "Input Current Hysteresis",
          "symbol": "IHYS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.34,
          "max": null,
          "conditions": "",
          "source_page": 4,
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          "name": "Input Capacitance",
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          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "f = 100 kHz, VF = 0 V",
          "source_page": 4,
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          "name": "Minimum pulse width",
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          "min": null,
          "typ": 30,
          "max": null,
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          "name": "High-Level Output Voltage (VDD-referenced offset)",
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          "kind": "electrical",
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          "min": null,
          "typ": 0,
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