WAS3157B-6

{
  "schema_version": 1,
  "type": "component",
  "slug": "was3157b-6",
  "title": "WAS3157B-6",
  "brief": "WILLSEMI Will Semicon Analog Switches, Multiplexers, SOT-363. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "was3157b-6"
  ],
  "component": {
    "mpn": "WAS3157B-6",
    "manufacturer": "WILLSEMI Will Semicon",
    "package": "SOT-363",
    "pin_count": 6,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/45adc319524ff7e6013aa13a4ff1477f.pdf",
    "parts": {
      "symbol": "was3157b-6.kicad_sym",
      "footprint": "was3157b-6.kicad_mod",
      "model_3d": "was3157b-6-etched.glb",
      "model_3d_plain": "was3157b-6.glb",
      "model_3d_step": "was3157b-6-etched.step",
      "model_3d_step_plain": "was3157b-6.step",
      "lbr": "was3157b-6.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "B1",
        "type": "bidirectional",
        "description": "Data 1 terminal (analog switch throw). Normally open; connected to A when SEL is high. Bidirectional analog signal, 0 to VCC operating range; absolute max -0.5V to 6.5V. Continuous current ±50mA."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "3",
        "name": "B0",
        "type": "bidirectional",
        "description": "Data 0 terminal (analog switch throw). Normally closed; connected to A when SEL is low. Bidirectional analog signal, 0 to VCC operating range; absolute max -0.5V to 6.5V. Continuous current ±50mA."
      },
      {
        "number": "4",
        "name": "A",
        "type": "bidirectional",
        "description": "Common data terminal (SPDT pole). Connects to B0 or B1 according to SEL logic. Bidirectional analog signal, 0 to VCC operating range; absolute max -0.5V to 6.5V. Continuous current ±50mA. A-port on-capacitance ~18.5pF."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply input. Recommended operating range 2.3V to 5.5V; absolute max -0.5V to 6.5V. Quiescent current <1uA typical."
      },
      {
        "number": "6",
        "name": "SEL",
        "type": "input",
        "description": "Digital switch select input. Logic low → B0 connected to A; logic high → B1 connected to A. Overvoltage-tolerant up to 7.0V regardless of VCC. VIH ≥ 1.5V (VCC=3.6~4.5V) or ≥ 1.3V (VCC=2.3~3.6V); VIL ≤ 0.6V or 0.4V respectively. Input capacitance ~5.5pF."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/45adc319524ff7e6013aa13a4ff1477f.pdf",
        "pages": 7,
        "sha256": "56e6f7d833c78371",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -0.8375,
        -0.65
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-363_SC-70-6@sha256:0659d885e00b7869",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "was3157b-6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "was3157b-6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f3fdd9ab829223cf81b9349907595ddb97e6cb615f57ce9d004c5f48d3dbc0eb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WILLSEMI Will Semicon",
      "Package": "SOT-363",
      "Category": "Interface",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "was3157b-6"
  ],
  "discovery_pitch": "WAS3157B-6 (WILLSEMI Will Semicon) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "was3157b-6.kicad_sym",
    "was3157b-6.kicad_mod",
    "was3157b-6.glb",
    "was3157b-6.step",
    "was3157b-6-etched.step",
    "was3157b-6.lbr",
    "docs/hero.png",
    "docs/was3157b-6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "WAS3157B-6/TR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T14:04:41.111Z"
}