main
Ray Set visibility: public 17727c2 1d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "b72210s0271k101",
  "title": "B72210S0271K101",
  "brief": "TDK Varistors, THT, P=7.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "subcategory": "Varistors",
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      "lcsc": "C54321676",
      "digikey": "495-3786-ND",
      "mouser": "871-B72210S271K101"
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    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "found"
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      "mouser": {
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        "status": "found"
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    "pins": [
      {
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        "name": "1",
        "type": "passive",
        "description": "Non-polar tinned wire lead (d 0.8 mm ±0.05, l min 25.0 mm) at 7.5 mm lead spacing; rated 275 VRMS / 350 VDC, varistor voltage 430 V ±10% at 1 mA."
      },
      {
        "number": "2",
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        "type": "passive",
        "description": "Non-polar tinned wire lead (d 0.8 mm ±0.05, l min 25.0 mm) at 7.5 mm lead spacing; rated 275 VRMS / 350 VDC, max. surge current 2500 A (8/20 µs, 1 time)."
      }
    ],
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "pages_sent": 47,
        "cost_usd": 0.1701,
        "at": "2026-11-05T20:33:50"
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        "pages": 47,
        "sha256": "0f741b20f56ee3e3",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9fe372188e8a7d5a235952a76181c650a3afa9172c7976ec46a070fce4552720",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "TDK",
      "Package": "THT, P=7.5mm",
      "Category": "Circuit Protection",
      "Pins": "2"
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    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0f741b20f56ee3e323b2dec95805ea0c2ddcb559dee67d6abf0c6ca34046db1f",
      "rows": [
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          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 10,
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          "typ": 430,
          "max": null,
          "conditions": "1 mA",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Maximum clamping voltage",
          "symbol": "vc,max",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 710,
          "conditions": "ic = 25.0 A",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Typical capacitance",
          "symbol": "Ctyp",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "1 kHz",
          "source_page": 10,
          "source": "datasheet"
        },
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          "name": "Maximum surge current, 1 time",
          "symbol": "imax",
          "kind": "absolute_maximum",
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          "conditions": "8/20 µs, 1 time, TA = 105 °C",
          "source_page": 9,
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        {
          "name": "Nominal discharge current",
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          "conditions": "8/20 µs, 15 times, TA = 105 °C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Maximum energy absorption",
          "symbol": "Wmax",
          "kind": "absolute_maximum",
          "unit": "J",
          "min": null,
          "typ": null,
          "max": 43,
          "conditions": "2 ms, TA = 105 °C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Maximum average power dissipation",
          "symbol": "Pmax",
          "kind": "absolute_maximum",
          "unit": "W",
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          "conditions": "TA = 105 °C",
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        {
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          "symbol": "",
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          "typ": null,
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          "conditions": "",
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        {
          "name": "Electric strength",
          "symbol": "",
          "kind": "electrical",
          "unit": "kVRMS",
          "min": 2.5,
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          "conditions": "IEC 61051",
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        {
          "name": "Insulation resistance",
          "symbol": "Rins",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "IEC 61051",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
    "b72210s0271k101"
  ],
  "discovery_pitch": "B72210S0271K101 (TDK) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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