B57421V2222J062

{
  "slug": "b57421v2222j062",
  "version": "0.2.1",
  "type": "component",
  "description": "TDK NTC Thermistors, 0805. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "sensor",
    "b57421v2222j062"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "b57421v2222j062.kicad_sym",
    "b57421v2222j062.kicad_mod",
    "b57421v2222j062.glb",
    "b57421v2222j062.step",
    "b57421v2222j062.lbr",
    "docs/hero.png",
    "docs/b57421v2222j062-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "b57421v2222j062-hero.glb",
    "b57421v2222j062-hero.overlay.json"
  ],
  "metadata": {
    "specs": {
      "Manufacturer": "TDK",
      "Package": "0805",
      "Category": "Sensor",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "kind": "nominal",
          "name": "Resistance",
          "symbol": "R",
          "min": null,
          "typ": null,
          "max": null,
          "unit": "ohm",
          "stated": false,
          "conditions": "Unknown: no source states it",
          "source": "none"
        },
        {
          "kind": "nominal",
          "name": "Tolerance",
          "symbol": "TOL",
          "min": null,
          "typ": null,
          "max": null,
          "unit": "%",
          "stated": false,
          "conditions": "Unknown: no source states it",
          "source": "none"
        },
        {
          "kind": "absolute_maximum",
          "name": "Power rating",
          "symbol": "P",
          "min": null,
          "typ": null,
          "max": null,
          "unit": "W",
          "stated": false,
          "conditions": "Unknown: no source states it",
          "source": "none"
        },
        {
          "kind": "absolute_maximum",
          "name": "Working voltage",
          "symbol": "VW",
          "min": null,
          "typ": null,
          "max": null,
          "unit": "V",
          "stated": false,
          "conditions": "Unknown: no source states it",
          "source": "none"
        },
        {
          "kind": "nominal",
          "name": "Temperature coefficient",
          "symbol": "TCR",
          "min": null,
          "typ": null,
          "max": null,
          "unit": "ppm/°C",
          "stated": false,
          "conditions": "Unknown: no source states it",
          "source": "none"
        }
      ]
    }
  },
  "component": {
    "mpn": "B57421V2222J062",
    "manufacturer": "TDK",
    "package": "0805",
    "pin_count": 2,
    "category": "Sensor",
    "subcategory": "NTC Thermistors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3700d58f6207462a7a638f2b84222d08.pdf",
    "parts": {
      "symbol": "b57421v2222j062.kicad_sym",
      "footprint": "b57421v2222j062.kicad_mod",
      "model_3d": "b57421v2222j062-hero.glb",
      "model_3d_plain": "b57421v2222j062.glb",
      "model_3d_step": "b57421v2222j062.step",
      "model_3d_step_plain": "b57421v2222j062.step",
      "lbr": "b57421v2222j062.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Thermistor terminal 1 (nickel barrier SMD termination). Non-polarized; interchangeable with pin 2. Resistance to pin 2 is 2.2 kΩ ±5% at 25 °C, decreasing with temperature per NTC R/T curve 8502 (B25/100 = 4000 K)."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Thermistor terminal 2 (nickel barrier SMD termination). Non-polarized; interchangeable with pin 1. Max power dissipation 210 mW at 25 °C on PCB; dissipation factor ~3.5 mW/K."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3700d58f6207462a7a638f2b84222d08.pdf",
        "pages": 27,
        "sha256": "8e724df0e093127a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "b57421v2222j062.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.2,
          0.45
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ded342cdb394fb45395227beaaa75cc390613cf2581b29cd6d22c12abd6103b2",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "b57421v2222j062-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.2,
          0.45
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2ec38f59166726674d2703cdbe619f36d59e706995bb53fb70940f331df92ad3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "title": "B57421V2222J062",
  "brief": "TDK NTC Thermistors, 0805. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "discovery_triggers": [
    "b57421v2222j062"
  ],
  "discovery_pitch": "B57421V2222J062 (TDK) component page with datasheet-verified CAD.",
  "visibility": "public"
}