JSM451

{
  "schema_version": 1,
  "type": "component",
  "slug": "jsm451",
  "title": "JSM451",
  "brief": "JSMSEMI Hall Sensor, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "jsm451"
  ],
  "component": {
    "mpn": "JSM451",
    "manufacturer": "JSMSEMI",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Sensor",
    "subcategory": "Hall Sensor",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2401051655_JSMSEMI-JSM451_C2900628.pdf",
    "parts": {
      "symbol": "jsm451.kicad_sym",
      "footprint": "jsm451.kicad_mod",
      "model_3d": "jsm451-etched.glb",
      "model_3d_plain": "jsm451.glb",
      "model_3d_step": "jsm451-etched.step",
      "model_3d_step_plain": "jsm451.step",
      "lbr": "jsm451.lbr"
    },
    "distributor_links": {
      "lcsc": "C2900628"
    },
    "pins": [
      {
        "number": "1",
        "name": "VSUP",
        "type": "power_in",
        "description": "Supply voltage input, 3.8 V to 40 V (absolute max 60 V). Typical supply current 3.5 mA (7 mA max). Decouple with a local ceramic capacitor; add series R (100 Ω) and CP (4.7 nF) near the sensor in noisy supplies."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference return for the device."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "output",
        "description": "Open-collector Hall switch output; requires external pull-up resistor (typ. RL = 4.7 kΩ). Sinks up to 40 mA with Vsat <= 0.4 V at 20 mA. Output goes LOW when |B| > Bop (+/-80 Gauss) and HIGH when |B| < Brp (+/-50 Gauss). Output voltage rating -0.5 V to 60 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2401051655_JSMSEMI-JSM451_C2900628.pdf",
        "pages": 5,
        "sha256": "0161d5bd77bcf667",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -0.9375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23@sha256:0d88c86c1b6d8c1a",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "jsm451.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "jsm451-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5ee1cf79d305e0cdc2d2f96b0de3a7c3f27de5b6b7a156a95ccfc5018baf68",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "JSMSEMI",
      "Package": "SOT-23",
      "Category": "Sensor",
      "Pins": "3"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "jsm451"
  ],
  "discovery_pitch": "JSM451 (JSMSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "jsm451.kicad_sym",
    "jsm451.kicad_mod",
    "jsm451.glb",
    "jsm451.step",
    "jsm451-etched.step",
    "jsm451.lbr",
    "docs/hero.png",
    "docs/jsm451-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "JSM451SOT23",
      "kind": "packaging"
    },
    {
      "mpn": "JSM451TO92S",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T23:15:26.113Z"
}