BL0942

{
  "slug": "bl0942",
  "version": "0.1.0",
  "type": "component",
  "description": "BL(Shanghai Belling) Energy Metering ICs, SSOP-10-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data converters",
    "bl0942",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bl0942.kicad_sym",
    "bl0942.kicad_mod",
    "bl0942.glb",
    "bl0942.step",
    "bl0942.lbr",
    "docs/hero.png",
    "docs/bl0942-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bl0942-hero.glb",
    "bl0942-hero.overlay.json",
    "bl0942-etched.glb"
  ],
  "component": {
    "mpn": "BL0942",
    "manufacturer": "BL(Shanghai Belling)",
    "package": "SSOP-10-150mil",
    "pin_count": 10,
    "category": "Data Converters",
    "subcategory": "Energy Metering ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ead263bddf00ae8585dd3043ed9bf173.pdf",
    "parts": {
      "symbol": "bl0942.kicad_sym",
      "footprint": "bl0942.kicad_mod",
      "model_3d": "bl0942-hero.glb",
      "model_3d_plain": "bl0942-etched.glb",
      "model_3d_step": "bl0942-etched.step",
      "model_3d_step_plain": "bl0942.step",
      "lbr": "bl0942.lbr"
    },
    "distributor_links": {
      "lcsc": "C2837510"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T08:06:36Z",
      "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": "Power supply pin, +3.3V; the datasheet gives VDD range 3.0 to 3.6 V and absolute maximum -0.3 to +4 V."
      },
      {
        "number": "2",
        "name": "IP",
        "type": "input",
        "description": "Current channel analog input; maximum differential voltage ±42 mV (30 mV rms)."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "input",
        "description": "Current channel analog input; maximum differential voltage ±42 mV (30 mV rms)."
      },
      {
        "number": "4",
        "name": "VP",
        "type": "input",
        "description": "Voltage signal input; maximum differential voltage ±100 mV (70 mV rms)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground, 0 V reference."
      },
      {
        "number": "6",
        "name": "CF1",
        "type": "output",
        "description": "Energy status output whose function is selected through the OT_FUNX register (active energy pulse, overcurrent alarm, voltage zero-crossing or current zero-crossing)."
      },
      {
        "number": "7",
        "name": "SEL",
        "type": "input",
        "description": "UART/SPI mode select: 0 = UART, 1 = SPI; internal pull-down so a floating pin is UART, and it must be tied directly to VDD for SPI."
      },
      {
        "number": "8",
        "name": "SCLK_BPS",
        "type": "input",
        "description": "SPI mode clock input; in UART mode this pin selects the baud rate (sampled as 0 = 4800 bps, 1 = 9600 bps)."
      },
      {
        "number": "9",
        "name": "RX/SDI",
        "type": "input",
        "description": "Multiplexed pin: UART RX in UART mode, SPI DIN in SPI mode; requires an external pull-up resistor in UART mode."
      },
      {
        "number": "10",
        "name": "TX/SDO",
        "type": "output",
        "description": "Multiplexed pin: UART TX in UART mode, SPI DOUT in SPI mode; requires an external pull-up resistor in UART mode."
      }
    ],
    "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: The MPN BL0942 has no package suffix. The ordering section (page 29) lists BL0942-X with X=SSOP10L o; Pins 2 and 3 are printed together as 'IP,IN' in the SSOP10L table. The order 2=IP and 3=IN is inferr; Pin types are assigned from the datasheet's functional descriptions: RX/SDI and SEL/SCLK_BPS are tre"
        ],
        "pages_sent": 31,
        "cost_usd": 0.0849,
        "at": "2026-10-21T08:01:56"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/ead263bddf00ae8585dd3043ed9bf173.pdf",
        "pages": 31,
        "sha256": "ec449aa15a55b775",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bl0942.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.1,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "67b52412e9c230c40c0bdcb2098b238633f27dfc65692a16abf3448995fbe697",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl0942-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.1,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bd4c6f239bb9079469d75b3ab7382d4d44f26ed6e224b3d69db8a070f145f8c6",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}