CH941SR

{
  "slug": "ch941sr",
  "version": "0.1.0",
  "type": "component",
  "description": "COSEMITECH Hall Switches, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "magnetic sensors",
    "ch941sr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ch941sr.kicad_sym",
    "ch941sr.kicad_mod",
    "ch941sr.glb",
    "ch941sr.step",
    "ch941sr.lbr",
    "docs/hero.png",
    "docs/ch941sr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ch941sr-hero.glb",
    "ch941sr-hero.overlay.json",
    "ch941sr-etched.glb"
  ],
  "component": {
    "mpn": "CH941SR",
    "manufacturer": "COSEMITECH",
    "package": "SOT-23-3L",
    "pin_count": 3,
    "category": "Magnetic Sensors",
    "subcategory": "Hall Switches",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912101087305728",
    "parts": {
      "symbol": "ch941sr.kicad_sym",
      "footprint": "ch941sr.kicad_mod",
      "model_3d": "ch941sr-hero.glb",
      "model_3d_plain": "ch941sr-etched.glb",
      "model_3d_step": "ch941sr-etched.step",
      "model_3d_step_plain": "ch941sr.step",
      "lbr": "ch941sr.lbr"
    },
    "distributor_links": {
      "lcsc": "C455292"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T03:48:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage pin; the datasheet specifies operation from 3.3 V to 30 V (supply voltage range -40 °C to 150 °C) and a reverse voltage rating of -40 V."
      },
      {
        "number": "2",
        "name": "OUT",
        "type": "output",
        "description": "Open collector output pin; output saturation voltage is 0.4 V max at 20 mA, output leakage is 10 µA max with B < 50 Gs, and the output voltage and output current maximums are 40 V and 20 mA."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers and names come from the 'Pin Definitions and Descriptions' table on page 3, where the SO; The datasheet is marked 'advanced information' and states details are subject to change without noti; The OUT description merges several electrical limits from the parameter tables (pages 3 and 5) becau"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0328,
        "at": "2026-10-19T03:46:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912101087305728",
        "pages": 10,
        "sha256": "baa1219653710720",
        "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"
    },
    "models_3d": [
      {
        "file": "ch941sr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ch941sr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "01e278a2d9c20bbe649b6f2e13a91b8ac7b97df08face6b7fe2bcc8d2472efdd",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}