MS8551S

{
  "schema_version": 1,
  "type": "component",
  "slug": "ms8551s",
  "title": "MS8551S",
  "brief": "Hangzhou Ruimeng Tech Precision OpAmps, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "amplifiers",
    "ms8551s",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MS8551S",
    "manufacturer": "Hangzhou Ruimeng Tech",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Amplifiers",
    "subcategory": "Precision OpAmps",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0f9b46363ce970e708d5509b864da700.pdf",
    "parts": {
      "symbol": "ms8551s.kicad_sym",
      "footprint": "ms8551s.kicad_mod",
      "model_3d": "ms8551s-hero.glb",
      "model_3d_plain": "ms8551s-etched.glb",
      "model_3d_step": "ms8551s-etched.step",
      "model_3d_step_plain": "ms8551s.step",
      "lbr": "ms8551s.lbr"
    },
    "distributor_links": {
      "lcsc": "C1508994"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:50:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "output",
        "description": "Amplifier output with rail-to-rail swing (VOH 4.998V typ at 5V supply, 100kΩ load; short-circuit current 51mA typ at 5V)."
      },
      {
        "number": "2",
        "name": "-VS",
        "type": "power_in",
        "description": "Negative supply (ground in single-supply use); supply range 2.5V to 5.5V between +VS and -VS, absolute maximum 6V."
      },
      {
        "number": "3",
        "name": "+IN",
        "type": "input",
        "description": "Non-inverting input with rail-to-rail input range 0V to 5V at 5V supply and 20pA typical input bias current."
      },
      {
        "number": "4",
        "name": "-IN",
        "type": "input",
        "description": "Inverting input with rail-to-rail input range; differential input voltage limited to -5V to 5V."
      },
      {
        "number": "5",
        "name": "+VS",
        "type": "power_in",
        "description": "Positive supply, 2.5V to 5.5V operating range (6V absolute maximum), 400µA typical quiescent current."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet has no pin description table; descriptions are derived from the pin diagram on page 1 and ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 16,
        "cost_usd": 0.3331,
        "at": "2026-10-22T21:50:18"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0f9b46363ce970e708d5509b864da700.pdf",
        "pages": 16,
        "sha256": "afd06b3ec4fea5da",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ms8551s.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ms8551s-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "bad1d4739a6fd5e19328d0c22d8a6c6911557788344102d9f91d1367ec26c92b",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Hangzhou Ruimeng Tech",
      "Package": "SOT-23-5",
      "Category": "Amplifiers",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "afd06b3ec4fea5da1665367aba8713c5c3cf0e108b9bbbe572b54aaf831c3574",
      "rows": [
        {
          "name": "Input offset voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": 8,
          "max": 24,
          "conditions": "Vs=5V, TA=25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": null,
          "max": 28,
          "conditions": "Vs=5V, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Common-mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 90,
          "typ": 110,
          "max": null,
          "conditions": "Vs=5V, VCM=0V to 5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Common-mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 83,
          "typ": null,
          "max": null,
          "conditions": "Vs=5V, VCM=0V to 5V, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Large signal gain",
          "symbol": "AVO",
          "kind": "electrical",
          "unit": "dB",
          "min": 100,
          "typ": 145,
          "max": null,
          "conditions": "Vs=5V, RL=10kΩ, Vo=0.3V to 4.7V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Large signal gain",
          "symbol": "AVO",
          "kind": "electrical",
          "unit": "dB",
          "min": 97,
          "typ": null,
          "max": null,
          "conditions": "Vs=5V, RL=10kΩ, Vo=0.3V to 4.7V, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.99,
          "typ": 4.998,
          "max": null,
          "conditions": "Vs=5V, RL=100kΩ to -Vs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.987,
          "typ": null,
          "max": null,
          "conditions": "Vs=5V, RL=100kΩ to -Vs, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.985,
          "typ": 4.991,
          "max": null,
          "conditions": "Vs=5V, RL=10kΩ to -Vs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.98,
          "typ": null,
          "max": null,
          "conditions": "Vs=5V, RL=10kΩ to -Vs, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "Vs=5V, RL=100kΩ to +Vs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 13,
          "conditions": "Vs=5V, RL=100kΩ to +Vs, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 9,
          "max": 15,
          "conditions": "Vs=5V, RL=10kΩ to +Vs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Vs=5V, RL=10kΩ to +Vs, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": 40,
          "typ": 51,
          "max": null,
          "conditions": "Vs=5V, Vo=2.5V, RL=10Ω to GND",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": 23,
          "typ": null,
          "max": null,
          "conditions": "Vs=5V, Vo=2.5V, RL=10Ω to GND, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 90,
          "typ": 110,
          "max": null,
          "conditions": "Vs=2.5V to 5.5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "Vs=2.5V to 5.5V, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 400,
          "max": 500,
          "conditions": "Vs=5V, Vo=Vs/2",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "Vs=5V, Vo=Vs/2, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5,
          "conditions": "Vs=5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input bias current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "pA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "Vs=5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input offset current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "pA",
          "min": null,
          "typ": 74,
          "max": null,
          "conditions": "Vs=5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage drift",
          "symbol": "ΔVOS/ΔT",
          "kind": "temperature_coefficient",
          "unit": "nV/℃",
          "min": null,
          "typ": 56,
          "max": null,
          "conditions": "Vs=5V, -40°C≤TA≤125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gain bandwidth product",
          "symbol": "GBP",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 1.16,
          "max": null,
          "conditions": "Vs=5V, Av=+100",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Slew rate",
          "symbol": "SR",
          "kind": "electrical",
          "unit": "V/µs",
          "min": null,
          "typ": 0.9,
          "max": null,
          "conditions": "Vs=5V, Av=+1, RL=10kΩ, 2V output step",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Overload recovery time",
          "symbol": "",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 0.06,
          "max": null,
          "conditions": "Vs=5V, Av=-100, RL=10kΩ, VIN=200mV",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Voltage noise",
          "symbol": "en p-p",
          "kind": "electrical",
          "unit": "µVPP",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "Vs=5V, 0.1Hz to 10Hz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Voltage noise density",
          "symbol": "en",
          "kind": "electrical",
          "unit": "nV/√Hz",
          "min": null,
          "typ": 47.5,
          "max": null,
          "conditions": "Vs=5V, f=1kHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": 4,
          "max": 20,
          "conditions": "Vs=2.7V, TA=25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": null,
          "max": 24,
          "conditions": "Vs=2.7V, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Common-mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 90,
          "typ": 100,
          "max": null,
          "conditions": "Vs=2.7V, VCM=0V to 5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Common-mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 81,
          "typ": null,
          "max": null,
          "conditions": "Vs=2.7V, VCM=0V to 5V, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Large signal gain",
          "symbol": "AVO",
          "kind": "electrical",
          "unit": "dB",
          "min": 100,
          "typ": 135,
          "max": null,
          "conditions": "Vs=2.7V, RL=10kΩ, Vo=0.3V to 4.7V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Large signal gain",
          "symbol": "AVO",
          "kind": "electrical",
          "unit": "dB",
          "min": 94,
          "typ": null,
          "max": null,
          "conditions": "Vs=2.7V, RL=10kΩ, Vo=0.3V to 4.7V, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.69,
          "typ": 2.699,
          "max": null,
          "conditions": "Vs=2.7V, RL=100kΩ to -Vs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.688,
          "typ": null,
          "max": null,
          "conditions": "Vs=2.7V, RL=100kΩ to -Vs, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.685,
          "typ": 2.693,
          "max": null,
          "conditions": "Vs=2.7V, RL=10kΩ to -Vs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage high",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.682,
          "typ": null,
          "max": null,
          "conditions": "Vs=2.7V, RL=10kΩ to -Vs, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 0.2,
          "max": 10,
          "conditions": "Vs=2.7V, RL=100kΩ to +Vs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "Vs=2.7V, RL=100kΩ to +Vs, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 1,
          "max": 15,
          "conditions": "Vs=2.7V, RL=10kΩ to +Vs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "Vs=2.7V, RL=10kΩ to +Vs, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": 28,
          "max": null,
          "conditions": "Vs=2.7V, Vo=2.5V, RL=10Ω to GND",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": 15,
          "typ": null,
          "max": null,
          "conditions": "Vs=2.7V, Vo=2.5V, RL=10Ω to GND, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 90,
          "typ": 110,
          "max": null,
          "conditions": "Vs=2.5V to 5.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "Vs=2.5V to 5.5V, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 500,
          "max": 550,
          "conditions": "Vs=2.7V, Vo=Vs/2",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1050,
          "conditions": "Vs=2.7V, Vo=Vs/2, -40°C≤TA≤125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Differential input voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "ESD human body model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3000,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "ESD machine model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ms8551s"
  ],
  "discovery_pitch": "MS8551S (Hangzhou Ruimeng Tech) 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",
    "ms8551s.kicad_sym",
    "ms8551s.kicad_mod",
    "ms8551s.glb",
    "ms8551s.step",
    "ms8551s.lbr",
    "docs/hero.png",
    "docs/ms8551s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ms8551s-hero.glb",
    "ms8551s-hero.overlay.json",
    "ms8551s-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}