SMM02040C1809FB300

{
  "schema_version": 1,
  "type": "component",
  "slug": "smm02040c1809fb300",
  "title": "SMM02040C1809FB300",
  "brief": "Vishay Intertech Chip Resistor - Surface Mount, MELF-0204. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "resistors",
    "smm02040c1809fb300",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SMM02040C1809FB300",
    "manufacturer": "Vishay Intertech",
    "package": "MELF-0204",
    "pin_count": 2,
    "category": "Resistors",
    "subcategory": "Chip Resistor - Surface Mount",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8601052372311691264",
    "parts": {
      "symbol": "smm02040c1809fb300.kicad_sym",
      "footprint": "smm02040c1809fb300.kicad_mod",
      "model_3d": "smm02040c1809fb300-hero.glb",
      "model_3d_step": "smm02040c1809fb300.step",
      "lbr": "smm02040c1809fb300.lbr",
      "model_3d_plain": "smm02040c1809fb300.glb"
    },
    "distributor_links": {
      "lcsc": "C6488927",
      "digikey": "749-1188-2-ND",
      "mouser": "71-SMM02040C1809FB30"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T05:48:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "749-1188-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "71-SMM02040C1809FB30",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Terminal 1 of an unpolarised resistor; either orientation."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Terminal 2 of an unpolarised resistor; either orientation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins",
        "primary_model": "two-terminal convention",
        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0036,
        "at": "2026-10-16T05:48:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8601052372311691264",
        "pages": 13,
        "sha256": "bcae28612f231655",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "smm02040c1809fb300.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.6,
          1.4,
          1.4
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7cd147a215badd5a65823d34daaf31590d5c5f41b586c9a8320a8b85538bb659",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Vishay Intertech",
      "Package": "MELF-0204",
      "Category": "Resistors",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "The resistors are completely lead (Pb)-free, the pure matte tin plating provides compatibility with lead (Pb)-free and",
        "page": 4,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "bcae28612f231655d6b3dff5846dfd34682b60aeb0a2fb2d70a903bb2cc026e2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "bcae28612f231655d6b3dff5846dfd34682b60aeb0a2fb2d70a903bb2cc026e2",
      "rows": [
        {
          "name": "Resistance tolerance (part-number code F = ±1 %)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient (part-number code C = ±50 ppm/K)",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/K",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "At (20 / -55 / 20) °C and (20 / 125 / 20) °C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Operating voltage, Umax (AC RMS/DC)",
          "symbol": "Umax.",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Permissible voltage against ambient (insulation)",
          "symbol": "Uins",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "1 min",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Rated dissipation P70",
          "symbol": "P70",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.07,
          "conditions": "Precision operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Rated dissipation P70",
          "symbol": "P70",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "Standard operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Rated dissipation P70",
          "symbol": "P70",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "Power operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -10,
          "typ": null,
          "max": 85,
          "conditions": "Precision operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "Standard operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 155,
          "conditions": "Power operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Permissible film temperature, max",
          "symbol": "ϑF max.",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 85,
          "conditions": "Precision operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Permissible film temperature, max",
          "symbol": "ϑF max.",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "Standard operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Permissible film temperature, max",
          "symbol": "ϑF max.",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 155,
          "conditions": "Power operation mode",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max resistance change at P70, 1000 h",
          "symbol": "|ΔR/R|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.05,
          "conditions": "Precision mode; P70; 10 Ω to 1 MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max resistance change at P70, 8000 h",
          "symbol": "|ΔR/R|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "Precision mode; P70; 10 Ω to 1 MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max resistance change at P70, 225 000 h",
          "symbol": "|ΔR/R|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "Precision mode; P70; 10 Ω to 1 MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max resistance change at P70, 1000 h",
          "symbol": "|ΔR/R|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.15,
          "conditions": "Standard mode; P70; 0.22 Ω to 10 MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max resistance change at P70, 8000 h",
          "symbol": "|ΔR/R|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "Standard mode; P70; 0.22 Ω to 10 MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max resistance change at P70, 1000 h",
          "symbol": "|ΔR/R|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "Power mode; P70; 0.22 Ω to 10 MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max resistance change at P70, 8000 h",
          "symbol": "|ΔR/R|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "Power mode; P70; 0.22 Ω to 10 MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Endurance 70 °C precision mode, permissible change ±(0.05 % R + 0.005 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.05,
          "typ": null,
          "max": 0.05,
          "conditions": "U ≤ Umax.; 1.5 h on, 0.5 h off; 70 °C; 1000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Endurance 70 °C precision mode, permissible change ±(0.1 % R + 0.005 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "U ≤ Umax.; 1.5 h on, 0.5 h off; 70 °C; 8000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Endurance 70 °C standard mode, permissible change ±(0.15 % R) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.15,
          "typ": null,
          "max": 0.15,
          "conditions": "U ≤ Umax.; 1.5 h on, 0.5 h off; 70 °C; 1000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Endurance 70 °C standard mode, permissible change ±(0.3 % R) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "U ≤ Umax.; 1.5 h on, 0.5 h off; 70 °C; 8000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Endurance 70 °C power mode, permissible change ±(0.25 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "U ≤ Umax.; 1.5 h on, 0.5 h off; 70 °C; 1000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Endurance 70 °C power mode, permissible change ±(0.5 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "U ≤ Umax.; 1.5 h on, 0.5 h off; 70 °C; 8000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Endurance at upper category temperature, permissible change ±(0.25 % R)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "125 °C; 1000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Endurance at upper category temperature, permissible change ±(0.5 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "155 °C; 1000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Damp heat, steady state, permissible change ±(0.25 % R)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "(40 ± 2) °C; 56 days; (93 ± 3) % RH",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Damp heat, steady state accelerated, permissible change ±(2 % R)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "(85 ± 2) °C; (85 ± 5) % RH; U ≤ 100 V and 0.3 x Umax. (smaller valid); 1000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Cold, permissible change ±(0.1 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "-55 °C; 2000 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Rapid change of temperature, permissible change ±(0.25 % R)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "LCT = -55 °C; UCT = 125 °C; 1000 cycles",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Rapid change of temperature, permissible change ±(0.5 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "LCT = -55 °C; UCT = 155 °C; 1000 cycles",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Short time overload, standard mode, permissible change ±(0.1 % R)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "U = 2.5 x Umax. (≤ 2 x Umax.); 5 s",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Short time overload, power mode, permissible change ±(0.1 % R)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "Power operation mode; 5 s",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge HBM, permissible change ±(0.5 % R + 0.05 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "IEC 61340-3-1; 3 pos. + 3 neg. discharges; SMM 0204: 2 kV",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Vibration, permissible change ±(0.1 % R)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "10 Hz to 2000 Hz; 7.5 h",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Resistance to soldering heat, solder bath, permissible change ±(0.05 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.05,
          "typ": null,
          "max": 0.05,
          "conditions": "Solder bath (260 ± 5) °C; (10 ± 1) s",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Resistance to soldering heat, reflow, permissible change ±(0.02 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.02,
          "typ": null,
          "max": 0.02,
          "conditions": "Reflow (260 ± 5) °C; (10 ± 1) s",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Periodic electric overload, standard mode, permissible change ±(0.15 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.15,
          "typ": null,
          "max": 0.15,
          "conditions": "U ≤ 2 x Umax.; 0.1 s on, 2.5 s off; 1000 cycles",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Periodic electric overload, power mode, permissible change ±(0.3 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "U ≤ 2 x Umax.; 0.1 s on, 2.5 s off; 1000 cycles",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Single pulse high voltage overload, standard mode, permissible change ±(0.15 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.15,
          "typ": null,
          "max": 0.15,
          "conditions": "U = 10 x Umax. (≤ 2 x Umax.); 10 pulses 10 µs/700 µs",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Single pulse high voltage overload, power mode, permissible change ±(0.15 % R + 0.01 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.15,
          "typ": null,
          "max": 0.15,
          "conditions": "U = 10 x Umax. (≤ 2 x Umax.); 10 pulses 10 µs/700 µs",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Substrate bending, permissible change ±(0.05 % + 0.005 Ω) (% term only)",
          "symbol": "ΔR",
          "kind": "electrical",
          "unit": "%",
          "min": -0.05,
          "typ": null,
          "max": 0.05,
          "conditions": "Depth 2 mm, 3 times",
          "source_page": 11,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "smm02040c1809fb300"
  ],
  "discovery_pitch": "SMM02040C1809FB300 (Vishay Intertech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "smm02040c1809fb300.kicad_sym",
    "smm02040c1809fb300.kicad_mod",
    "smm02040c1809fb300.glb",
    "smm02040c1809fb300.step",
    "smm02040c1809fb300.lbr",
    "docs/hero.png",
    "docs/smm02040c1809fb300-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "smm02040c1809fb300-hero.glb",
    "smm02040c1809fb300-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}