main
Ray Set visibility: public 34a7895 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "aljp61089b",
  "title": "ALJP61089B",
  "brief": "ALJ ESD And Surge Protection (TVS/ESD), SOP-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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  "component": {
    "mpn": "ALJP61089B",
    "manufacturer": "ALJ",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603380601797947392",
    "parts": {
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      "model_3d_step": "aljp61089b-etched.step",
      "model_3d_step_plain": "aljp61089b.step",
      "lbr": "aljp61089b.lbr"
    },
    "distributor_links": {
      "lcsc": "C22458965"
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    "distributor_check": {
      "checked_at": "2026-10-18T10:44:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "K1/K2",
        "type": "passive",
        "description": "Connects to a subscriber line (Tip/Ring); the datasheet gives no pin-specific voltage or current limit for this connection."
      },
      {
        "number": "2",
        "name": "G",
        "type": "passive",
        "description": "Connects to battery as the reference voltage for the thyristor breakover, with a repetitive peak gate-cathode voltage rating of -120 V (VGKRM)."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
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      {
        "number": "4",
        "name": "K1/K2",
        "type": "passive",
        "description": "Connects to a subscriber line (Tip/Ring); the datasheet gives no pin-specific voltage or current limit for this connection."
      },
      {
        "number": "5",
        "name": "K1/K2",
        "type": "passive",
        "description": "Connects to a subscriber line (Tip/Ring); the datasheet gives no pin-specific voltage or current limit for this connection."
      },
      {
        "number": "6",
        "name": "A",
        "type": "power_in",
        "description": "Connects to ground."
      },
      {
        "number": "7",
        "name": "A",
        "type": "power_in",
        "description": "Connects to ground."
      },
      {
        "number": "8",
        "name": "K1/K2",
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        "guard_notes": [
          "extractor flagged: The datasheet lists pins 1, 4, 5 and 8 together as 'K1, K2' and does not state which pin is K1 and w; The datasheet lists pins 6 and 7 together as 'A' with the description 'Connect ground'. Pin type is ; The pin table gives only connection descriptions. The datasheet does not state per-pin voltage or cu"
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        "at": "2026-10-18T10:41:57"
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        "sha256": "48b0e8f1218b957c",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "ALJ",
      "Package": "SOP-8",
      "Category": "Circuit Protection",
      "Pins": "8"
    },
    "characteristics": {
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      "rows": [
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          "name": "Operating free-air temperature range",
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          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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          "name": "Storage temperature range",
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          "unit": "°C",
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        {
          "name": "Maximum lead temperature for soldering",
          "symbol": "TL",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "during 10s",
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        {
          "name": "Junction to free air thermal resistance",
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          "kind": "thermal",
          "unit": "°C/W",
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        {
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          "conditions": "VKA=0",
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        {
          "name": "Non-repetitive peak on-state pulse current",
          "symbol": "IPPSM",
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          "min": null,
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        {
          "name": "Non-repetitive peak on-state pulse current",
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          "conditions": "5/310us (TU-T K.20, K.21& K.45, K.44 open-circuit voltage wave shape 10/700 µs)",
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        {
          "name": "Non-repetitive peak on-state pulse current",
          "symbol": "IPPSM",
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        {
          "name": "Non repetitive peak on-state current (sinusoidal)",
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          "typ": null,
          "max": 6.5,
          "conditions": "60Hz, 0.1s",
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        },
        {
          "name": "Non repetitive peak on-state current (sinusoidal)",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
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          "typ": null,
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          "conditions": "60Hz, 1s",
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        {
          "name": "Non repetitive peak on-state current (sinusoidal)",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2.4,
          "conditions": "60Hz, 5s",
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        {
          "name": "Non repetitive peak on-state current (sinusoidal)",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
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          "max": 1.3,
          "conditions": "60Hz, 30s",
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        {
          "name": "Non repetitive peak on-state current (sinusoidal)",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
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          "typ": null,
          "max": 0.72,
          "conditions": "60Hz, 900s",
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        {
          "name": "Forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "IF = 5A, tW = 200μs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Impulse peak forward recovery voltage",
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          "min": null,
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          "max": 10,
          "conditions": "2/10μs, IF = 100A, RS = 50Ω, di/dt=80A/us",
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        {
          "name": "Off-state current",
          "symbol": "ID",
          "kind": "electrical",
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          "max": -5,
          "conditions": "VD= -120V, VGK=0, TJ = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Impulse breakover voltage",
          "symbol": "V(BO)",
          "kind": "electrical",
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          "typ": null,
          "max": -112,
          "conditions": "2/10μs, ITM = 100A, RS = 50Ω, di/dt = -80A/μs, VGG = -100V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Holding current",
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          "typ": null,
          "max": -150,
          "conditions": "IT = -1A, di/dt = 1A/ms, VGG = -100V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Gate reverse current",
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          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "VGG=VGK= -167V, VKA=0, TJ = 25 °C",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Gate trigger current",
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          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "IT=3A, tp(g)≥20us, VGG=-100V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Gate trigger voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "IT=3A, tp(g)≥20us, VGG=-100V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Anode-cathode offstate capacitance",
          "symbol": "CKA",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 110,
          "conditions": "f=1MHz, VD=1V, IG=0, VD=-3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Anode-cathode offstate capacitance",
          "symbol": "CKA",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 55,
          "conditions": "f=1MHz, VD=1V, IG=0, VD=-48V",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
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  "discovery_pitch": "ALJP61089B (ALJ) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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