SS54L

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  "type": "component",
  "slug": "ss54l",
  "title": "SS54L",
  "brief": "NH Schottky Diodes, SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "SS54L",
    "manufacturer": "NH",
    "package": "SMB",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Schottky Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b7a13943dc9f35ee7bf01ac659edc1e1.pdf",
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      "lbr": "ss54l.lbr"
    },
    "distributor_links": {
      "lcsc": "C3031869",
      "digikey": "5399-SS54LTR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T11:24:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "5399-SS54LTR-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": null,
        "status": "no match"
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    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, marked by the white band on the package; the SS54L is rated for 40 V VRRM/VDC and 5.0 A average forward current."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode; the datasheet gives a maximum forward voltage of 0.45 V at IF = 5.0 A and TA = 25℃."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-10-22T11:23:20"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
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        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-22",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "NH",
      "Package": "SMB",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4013f47713a5ba6a6d9b62de2b7612a3c1f3aff66396c506f9291dc00e5dcc6e",
      "rows": [
        {
          "name": "Maximum repetitive peak reverse voltage",
          "symbol": "VRRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum RMS voltage",
          "symbol": "VRMS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 28,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC blocking voltage",
          "symbol": "VDC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum average forward rectified current",
          "symbol": "IF(AV)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "see fig.1",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak forward surge current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "8.3ms single half sine-wave superimposed on rated load (JEDEC method at rated TL)",
          "source_page": 1,
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        {
          "name": "Current squared time",
          "symbol": "I2t",
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          "unit": "A2sec",
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          "max": 59.76,
          "conditions": "per diode, t<8.3ms",
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          "source": "datasheet"
        },
        {
          "name": "Maximum instantaneous forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.42,
          "max": 0.45,
          "conditions": "IF=5.0 A, TA=25℃, pulse width <300 uS, duty cycle <2%",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum instantaneous forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.38,
          "max": 0.43,
          "conditions": "IF=5.0 A, TA=125℃, pulse width <300 uS, duty cycle <2%",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical junction capacitance",
          "symbol": "CJ",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "4V, 1MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical thermal resistance junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "Mounted on PCB with 0.3\" x 0.3\" copper pad areas",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical thermal resistance junction to lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "Mounted on PCB with 0.3\" x 0.3\" copper pad areas",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
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          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
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        },
        {
          "name": "Storage temperature range",
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          "unit": "℃",
          "min": -55,
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          "conditions": "",
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        }
      ]
    }
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  "discovery_pitch": "SS54L (NH) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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