UMW3157

{
  "schema_version": 1,
  "type": "component",
  "slug": "umw3157",
  "title": "UMW3157",
  "brief": "UMW Analog Switches, Multiplexers, SC-70-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "umw3157"
  ],
  "component": {
    "mpn": "UMW3157",
    "manufacturer": "UMW",
    "package": "SC-70-6",
    "pin_count": 6,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2d528c09b2a4eaca1a80454bd141dae0.pdf",
    "parts": {
      "symbol": "umw3157.kicad_sym",
      "footprint": "umw3157.kicad_mod",
      "model_3d": "umw3157-etched.glb",
      "model_3d_plain": "umw3157.glb",
      "model_3d_step": "umw3157-etched.step",
      "model_3d_step_plain": "umw3157.step",
      "lbr": "umw3157.lbr"
    },
    "distributor_links": {
      "lcsc": "C394901"
    },
    "pins": [
      {
        "number": "1",
        "name": "B1",
        "type": "bidirectional",
        "description": "Analog/digital switch port B1. Connected to common port A when Select = H. Signal range 0 V to VCC; on-resistance typ. 5 Ω at VCC=4.5 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for the device."
      },
      {
        "number": "3",
        "name": "B0",
        "type": "bidirectional",
        "description": "Analog/digital switch port B0. Connected to common port A when Select = L. Signal range 0 V to VCC; on-resistance typ. 5 Ω at VCC=4.5 V."
      },
      {
        "number": "4",
        "name": "A",
        "type": "bidirectional",
        "description": "Common analog/digital switch port A. Routed to B0 (Select=L) or B1 (Select=H). Bidirectional, signal range 0 V to VCC."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage. Operating range 1.65 V to 5.5 V; absolute max 7.0 V. Bypass close to the pin."
      },
      {
        "number": "6",
        "name": "Select",
        "type": "input",
        "description": "Digital select input controlling which B port is connected to A: L → B0-A, H → B1-A. Overvoltage-tolerant up to 7 V (may exceed VCC). Must be driven high or low; must not float."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/2d528c09b2a4eaca1a80454bd141dae0.pdf",
        "pages": 9,
        "sha256": "bd8ed4cd0a78b39a",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "SC-70-6",
      "Category": "Interface",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "umw3157"
  ],
  "discovery_pitch": "UMW3157 (UMW) 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",
    "umw3157.kicad_sym",
    "umw3157.kicad_mod",
    "umw3157.glb",
    "umw3157.step",
    "umw3157-etched.step",
    "umw3157.lbr",
    "docs/hero.png",
    "docs/umw3157-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "UMW3157DCKR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T13:49:00.397Z"
}