TLP351

{
  "schema_version": 1,
  "type": "component",
  "slug": "tlp351",
  "title": "TLP351",
  "brief": "TOSHIBA Logic Output Optoisolators, DIP-8. 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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    "optoisolators",
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  "component": {
    "mpn": "TLP351",
    "manufacturer": "TOSHIBA",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Optoisolators",
    "subcategory": "Logic Output Optoisolators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908976045477888",
    "parts": {
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      "footprint": "tlp351.kicad_mod",
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      "lbr": "tlp351.lbr"
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    "distributor_links": {
      "lcsc": "C150126"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "no match"
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        "pn": null,
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        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; the datasheet gives no function for this pin."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "input",
        "description": "LED anode; the datasheet gives Absolute Maximum forward current IF of 20 mA and a recommended ON input current IF(ON) of 7.5 to 10 mA."
      },
      {
        "number": "3",
        "name": "Cathode",
        "type": "input",
        "description": "LED cathode; the absolute maximum reverse voltage VR is 5 V."
      },
      {
        "number": "4",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; the datasheet gives no function for this pin."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Detector ground; a 0.1 µF bypass capacitor must be connected between pin 8 (VCC) and pin 5 (GND)."
      },
      {
        "number": "6",
        "name": "VO",
        "type": "output",
        "description": "Detector output; peak output current is ±0.6 A max (IOPH −0.6 A, IOPL 0.6 A) and output voltage VO is 35 V max."
      },
      {
        "number": "7",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; the datasheet gives no function for this pin."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Detector supply voltage; recommended range is 10 to 30 V, with an absolute maximum of 35 V."
      }
    ],
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        "at": "2026-10-17T08:40:18"
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        "sha256": "b3297370a0014246",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "TOSHIBA",
      "Package": "DIP-8",
      "Category": "Optoisolators",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
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          "name": "Forward current",
          "symbol": "IF",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
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        {
          "name": "Peak transient forward current",
          "symbol": "IFP",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Note 1: PW ≤ 1 μs, 300 pps",
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        },
        {
          "name": "Junction temperature (LED)",
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          "unit": "°C",
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          "name": "Output power dissipation",
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        {
          "name": "Junction temperature (detector)",
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          "name": "Operating frequency",
          "symbol": "f",
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          "unit": "kHz",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "Note 3: exponential waveform IOPH ≤ −0.4 A (≤ 2.0 μs), IOPL ≤ +0.4 A (≤ 2.0 μs), Ta = 100°C",
          "source_page": 2,
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        {
          "name": "Storage temperature range",
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        {
          "name": "Lead soldering temperature",
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          "min": null,
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          "conditions": "10 s; Note 4: 2 mm or more from lead root",
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          "name": "Isolation voltage (AC, 1 minute, R.H. ≤ 60%)",
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        {
          "name": "Input current, ON",
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          "conditions": "Note 7: input signal rise time (fall time) < 0.5 μs",
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          "name": "Supply voltage",
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          "name": "Peak output current",
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          "name": "Operating temperature",
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          "name": "Forward voltage",
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          "min": null,
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          "max": 1.7,
          "conditions": "IF = 5 mA, Ta = 25°C",
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          "source": "datasheet"
        },
        {
          "name": "Input reverse current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
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          "max": 10,
          "conditions": "VR = 5 V, Ta = 25°C",
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          "name": "Output current “H” level (IOPH1)",
          "symbol": "IOPH1",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": -0.4,
          "max": -0.2,
          "conditions": "VCC = 15 V, IF = 5 mA, V8-6 = 4 V; Note 8: IO duration ≤ 50 μs",
          "source_page": 3,
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        },
        {
          "name": "Output current “H” level (IOPH2)",
          "symbol": "IOPH2",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": -0.67,
          "max": -0.4,
          "conditions": "VCC = 15 V, IF = 5 mA, V8-6 = 10 V; Note 8: IO duration ≤ 50 μs",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Output current “L” level (IOPL1)",
          "symbol": "IOPL1",
          "kind": "electrical",
          "unit": "A",
          "min": 0.2,
          "typ": 0.35,
          "max": null,
          "conditions": "VCC = 15 V, IF = 0 mA, V6-5 = 2 V; Note 8: IO duration ≤ 50 μs",
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          "name": "Output current “L” level (IOPL2)",
          "symbol": "IOPL2",
          "kind": "electrical",
          "unit": "A",
          "min": 0.4,
          "typ": 0.63,
          "max": null,
          "conditions": "VCC = 15 V, IF = 0 mA, V6-5 = 10 V; Note 8: IO duration ≤ 50 μs",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Output voltage “H” level",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 6,
          "typ": 8.5,
          "max": null,
          "conditions": "VCC = 10 V, IO = −100 mA, IF = 5 mA",
          "source_page": 3,
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        {
          "name": "Output voltage “L” level",
          "symbol": "VOL",
          "kind": "electrical",
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          "max": 1,
          "conditions": "IO = 100 mA, VF = 0.8 V",
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          "name": "Supply current “H” level",
          "symbol": "ICCH",
          "kind": "electrical",
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          "max": 2,
          "conditions": "VCC = 10 to 30 V, VO open, IF = 10 mA",
          "source_page": 3,
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        {
          "name": "Supply current “L” level",
          "symbol": "ICCL",
          "kind": "electrical",
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          "typ": 1.3,
          "max": 2,
          "conditions": "IF = 0 mA",
          "source_page": 3,
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        {
          "name": "Threshold input current L → H",
          "symbol": "IFLH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": 5,
          "conditions": "VCC = 15 V, VO > 1 V",
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          "name": "Threshold input voltage H → L",
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          "kind": "electrical",
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          "min": 0.8,
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          "conditions": "VCC = 15 V, VO < 1 V",
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          "name": "Supply voltage",
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          "min": 10,
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          "name": "Isolation voltage (AC, 1 minute)",
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          "name": "Propagation delay time H → L",
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          "conditions": "VCC = 30 V, Rg = 47 Ω, Cg = 3 nF, IF = 5 → 0 mA",
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          "name": "Propagation delay difference between any two parts or channels",
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          "typ": null,
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          "conditions": "VCC = 30 V, Rg = 47 Ω, Cg = 3 nF; |tpHL−tpLH|",
          "source_page": 4,
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          "name": "Common mode transient immunity at high level output",
          "symbol": "CMH",
          "kind": "timing",
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          "min": -10000,
          "typ": null,
          "max": null,
          "conditions": "VCM = 1000 Vp-p, Ta = 25°C, VCC = 30 V, IF = 5 mA, VO (min) = 26 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Common mode transient immunity at low level output",
          "symbol": "CML",
          "kind": "timing",
          "unit": "V/μs",
          "min": 10000,
          "typ": null,
          "max": null,
          "conditions": "VCM = 1000 Vp-p, Ta = 25°C, VCC = 30 V, IF = 0 mA, VO (max) = 1 V",
          "source_page": 4,
          "source": "datasheet"
        }
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