main
Ray Set visibility: public 591fba0 24d ago
{
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  "type": "component",
  "slug": "blm18kg101jh1d",
  "title": "BLM18KG101JH1D",
  "brief": "Murata Electronics Ferrite Beads, 0603. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
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    "subcategory": "Ferrite Beads",
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    "distributor_links": {
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      "digikey": "490-14024-2-ND",
      "mouser": "81-BLM18KG101JH1D"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "81-BLM18KG101JH1D",
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    "pins": [
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        "number": "1",
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        "type": "passive",
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      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Terminal 2 of an unpolarised inductor or ferrite bead; either orientation."
      }
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    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-10-17T10:41:56"
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        "pages": 9,
        "sha256": "71958eadd63257cf",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "refuses_to_fabricate": true
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        "extents_mm": [
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        "checked": "2026-10-17",
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  "metadata": {
    "specs": {
      "Manufacturer": "Murata Electronics",
      "Package": "0603",
      "Category": "Filters",
      "Pins": "2"
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    "characteristics": {
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          "name": "Impedance tolerance at 100MHz (BLM18KG101JH1D, code 100 at ±25%)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -25,
          "typ": null,
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          "conditions": "Impedance at 100MHz; printed as 100±25%",
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          "unit": "Ω",
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          "symbol": "",
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          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1900,
          "conditions": "Printed as 1900*1; *1: rated current derated vs. operating temperature per figure on page 2",
          "source_page": 1,
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        {
          "name": "DC resistance (first printed value)",
          "symbol": "",
          "kind": "electrical",
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          "min": null,
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          "max": 0.03,
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          "source_page": 1,
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        {
          "name": "DC resistance (second printed value)",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.04,
          "conditions": "Max value printed in second DC resistance column; column header reads 'at 150℃', alignment not fully clear",
          "source_page": 1,
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        {
          "name": "Operating temperature",
          "symbol": "",
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          "unit": "°C",
          "min": -55,
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          "source_page": 1,
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        {
          "name": "Storage temperature",
          "symbol": "",
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          "unit": "°C",
          "min": -55,
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          "max": 150,
          "conditions": "Storage temperature range (product spec)",
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        },
        {
          "name": "Impedance change after biased humidity (BLM18KG)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "After 1000h at 85°C, 85%RH, max rated current applied; BLM18KG series",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature (warehouse)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -10,
          "typ": null,
          "max": 40,
          "conditions": "Warehouse storage before use",
          "source_page": 9,
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        },
        {
          "name": "Storage humidity (warehouse)",
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          "kind": "recommended_operating",
          "unit": "%RH",
          "min": 15,
          "typ": null,
          "max": 85,
          "conditions": "Warehouse storage, no rapid change in temperature/humidity",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Reflow peak temperature (standard profile)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": 245,
          "max": null,
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          "source_page": 7,
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        },
        {
          "name": "Reflow limit peak temperature",
          "symbol": "",
          "kind": "absolute_maximum",
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          "min": null,
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          "max": 260,
          "conditions": "Limit reflow profile, 10 s",
          "source_page": 7,
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        },
        {
          "name": "Flow limit soldering temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
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          "conditions": "Limit flow profile, 5 s max, printed as 265±3°C",
          "source_page": 7,
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        },
        {
          "name": "Pre-heating temperature difference (solder to ferrite surface)",
          "symbol": "",
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          "min": null,
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          "conditions": "Temperature difference between solder and ferrite surface during pre-heating",
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        {
          "name": "Cooling temperature difference after soldering",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
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          "conditions": "Temperature difference when cooling into solvent after soldering",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Cleaning temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "Aqueous cleaning; 40°C max for IPA",
          "source_page": 9,
          "source": "datasheet"
        }
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  "discovery_triggers": [
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  "discovery_pitch": "BLM18KG101JH1D (Murata Electronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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