A1257WV-S-4P-LCP

{
  "schema_version": 1,
  "type": "component",
  "slug": "a1257wv-s-4p-lcp",
  "title": "A1257WV-S-4P-LCP",
  "brief": "CJT Changjiang Connectors Wire To Board Connector, SMD,P=1.25mm. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "connectors",
    "a1257wv-s-4p-lcp",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "A1257WV-S-4P-LCP",
    "manufacturer": "CJT Changjiang Connectors",
    "package": "JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical",
    "pin_count": 4,
    "category": "Connectors",
    "subcategory": "Wire To Board Connector",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893993002274816",
    "parts": {
      "symbol": "a1257wv-s-4p-lcp.kicad_sym",
      "footprint": "a1257wv-s-4p-lcp.kicad_mod",
      "model_3d": "a1257wv-s-4p-lcp-hero.glb",
      "model_3d_step": "a1257wv-s-4p-lcp.step",
      "lbr": "a1257wv-s-4p-lcp.lbr",
      "model_3d_plain": "a1257wv-s-4p-lcp.glb"
    },
    "distributor_links": {
      "lcsc": "C225120"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T02:10:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Contact 1; numbering follows the footprint."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Contact 2; numbering follows the footprint."
      },
      {
        "number": "3",
        "name": "3",
        "type": "passive",
        "description": "Contact 3; numbering follows the footprint."
      },
      {
        "number": "4",
        "name": "4",
        "type": "passive",
        "description": "Contact 4; numbering follows the footprint."
      }
    ],
    "provenance": {
      "extractor": "extract_pins",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins",
        "primary_model": "connector numbering",
        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "footprint has thermal pad ['MP'] the extraction did not name",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": null,
        "cost_usd": 0,
        "at": "2026-11-06T02:09:59"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893993002274816",
        "pages": 4,
        "sha256": "",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "a1257wv-s-4p-lcp.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8.25,
          4.95,
          4.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ebc503b4b58cad5873c7cdeb695315baf8bea08dd22aa49873b0104671b78d59",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "A1257WV-S-4P",
      "source_page": 3,
      "D": {
        "nom_mm": 8.25,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 1.25,
        "range_mm": [
          null,
          null
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "a1257wv-s-4p-lcp.step",
        "verdict": "SKIP",
        "reasons": [
          "a connector's drawing does not give a package outline's A, D and E"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "CJT Changjiang Connectors",
      "Package": "JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical",
      "Category": "Connectors",
      "Pins": "4"
    },
    "appearance": {
      "contacts": {
        "quote": "*Material:Pin:Brass/Tin over Nickel",
        "page": 3,
        "doc": "ds.pdf",
        "material": "Brass",
        "plating": "tin"
      },
      "housing": {
        "quote": "Insulator:Nylon 9T,UL94V-0",
        "page": 3,
        "doc": "ds.pdf",
        "material": "Nylon"
      },
      "version": 1,
      "datasheet_sha256": ""
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "",
      "rows": [
        {
          "name": "Contact resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "m",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Insulation resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "M",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Current rating",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "AC,DC",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Voltage rating",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "AC,DC",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Withstanding voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "AC/minute",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "a1257wv-s-4p-lcp"
  ],
  "discovery_pitch": "A1257WV-S-4P-LCP (CJT Changjiang Connectors) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a1257wv-s-4p-lcp.kicad_sym",
    "a1257wv-s-4p-lcp.kicad_mod",
    "a1257wv-s-4p-lcp.glb",
    "a1257wv-s-4p-lcp.step",
    "a1257wv-s-4p-lcp.lbr",
    "docs/hero.png",
    "docs/a1257wv-s-4p-lcp-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "a1257wv-s-4p-lcp-hero.glb",
    "a1257wv-s-4p-lcp-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}