ACS711KLCTR-12AB-T

{
  "slug": "acs711klctr-12ab-t",
  "version": "0.2.2",
  "type": "component",
  "description": "Allegro MicroSystems LLC Current Sensors, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "sensor",
    "acs711klctr-12ab-t"
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  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "component": {
    "mpn": "ACS711KLCTR-12AB-T",
    "manufacturer": "Allegro MicroSystems LLC",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Sensor",
    "subcategory": "Current Sensors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1bf446345a6b90b2d85fee0b480c5674.pdf",
    "parts": {
      "symbol": "acs711klctr-12ab-t.kicad_sym",
      "footprint": "acs711klctr-12ab-t.kicad_mod",
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      "lbr": "acs711klctr-12ab-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C459305"
    },
    "pins": [
      {
        "number": "1",
        "name": "IP+",
        "type": "passive",
        "description": "Primary current sense terminal (positive). Pins 1 and 2 are internally fused and form one side of the ~1.2 mΩ internal current-sensing conductor. Rated for 100 VAC/VDC working isolation to pins 5-8."
      },
      {
        "number": "2",
        "name": "IP+",
        "type": "passive",
        "description": "Primary current sense terminal (positive). Tied internally to pin 1; both must be connected in parallel to carry the primary current."
      },
      {
        "number": "3",
        "name": "IP-",
        "type": "passive",
        "description": "Primary current sense terminal (negative/return). Pins 3 and 4 are internally fused and form the return side of the internal ~1.2 mΩ conduction path."
      },
      {
        "number": "4",
        "name": "IP-",
        "type": "passive",
        "description": "Primary current sense terminal (negative/return). Tied internally to pin 3; both must be connected in parallel to carry the primary current."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Signal ground terminal. Reference for VCC, VIOUT, and FAULT."
      },
      {
        "number": "6",
        "name": "FAULT",
        "type": "output",
        "description": "Overcurrent fault output; active low, open-drain. Latches low when |IP| exceeds ±100% of full-scale (±12.5 A for the -12AB variant) with tFAULT ≈ 1.3 µs. Requires an external pull-up resistor (RPU ≥ 1 kΩ) to VCC; VOL ≤ 0.3 V with RPU = 1 kΩ. Reset only by a power-off/on cycle with VCC held below 200 mV for ≥100 µs."
      },
      {
        "number": "7",
        "name": "VIOUT",
        "type": "output",
        "description": "Analog output signal. Ratiometric voltage proportional to primary current IP with 110 mV/A sensitivity centered at VCC/2 for IP = 0 A. VIOH = VCC-0.3 V max, VIOL = 0.3 V max; drives up to 1 nF load; 100 kHz bandwidth, 4.6 µs response time."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device power supply terminal. 3 V to 5.5 V (3.3 V nominal for rated accuracy). Supply current ICC ≈ 4 mA typ (5.5 mA max). Bypass with 0.1 µF ceramic to GND."
      }
    ],
    "provenance": {
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        "pages": 18,
        "sha256": "2123c7c534373016",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
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        "checked": "2026-10-07",
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        "checked": "2026-11-12",
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      }
    ]
  },
  "title": "ACS711KLCTR-12AB-T",
  "brief": "Allegro MicroSystems LLC Current Sensors, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems LLC",
      "Package": "SOP-8",
      "Category": "Sensor",
      "Pins": "8"
    }
  },
  "discovery_triggers": [
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  "discovery_pitch": "ACS711KLCTR-12AB-T (Allegro MicroSystems LLC) component page with datasheet-verified CAD.",
  "visibility": "public"
}